# math(need to know if i worked this right)

183,986 results

### math(need to know if i worked this right)

simplify x-3/3 - x-2/5 5(x-3) - 3(x-2)/15 5x-15 - 3x+6/15 is it :2x-21/15???

### math

I need to see if i worked this problem right. -8 - -7 =-15 -8+-7=-15 do i add this together aredo i subtract and get -1

### English

1. What was their job? 2. They worked at a bakery. 3. He worked at a bakery, and she worked for a bank. 4. What were their jobs? 5. He worked at a bakery, and she worked for a bank. 6. They worked at a bakery. (Will you look at the questions and answers? Which ones are not ...

### math

One month, ruby worked 6 hours more than Isac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 126 hours. Find the number of hours each person worked

### Maths

Hi! I need help. I have worked out total rainfall, I have the monthly average (given by beauro) and I worked out the mean rainfall each month. My teacher says I need to work out the amount of rainfall in m-cubed that would fall on the roof each month. How would I do this? ps. ...

### math

If 3 people worked and earned \$5554.52 in one day. How much does each person earn if one worked for 5 hours, the other worked 7 and the other worked 8 hours?

### math

whatis the effective rate of \$23,000 invested for one year at 6%, compounded semiannually? round your answer to the nearest tenth. could you help me with this one? i need to see the math worked out please. do you have one worked out on the page so i don't have to wait too long.

How do I solve the following problems? My homework was to correct a puiz that I failed, but I do not know how to solve these problems..please help! Solving systems of equations using elimination: 7.) 10x - 10y = 0 5x - 4y = 8 Answer (8,8) I got the right answer because this ...

### Physics (Checking answe)

Sorry for re-posting but I need to know if I did it right, please help, I worked out the problem I just want to know if I did it right. A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 52(angle sign here) downward from the horizontal. Find ...

### math 156

Dan, Shelly, Kirby worked together on a lawn. together they earned \$4000. Dan worked 40 hrs, shelly worked 25hrs and Kirby worked 15 hrs. how should they divide the money? This one I do not understand, can anyone help me?

### Physics

Need help with a question! I worked out A (assuming its right) which leads to B. A) C=1.03x10^-4 uF, A=2.5mm^2, d=0.75um B) If the voltage across the membrane is delta V= 75mV, what is the charge +_Q on each surface A? thanks!

### pig skin

NEED ANSWER TO WEEK 11. RIGHT NOW. IT IS DUE TOMORROW!!!! =( HELP!! If you tell us the question and the answer you've worked out, we'll be glad to help you.

Hi. I pretty much have the answer for these problems that I worked out just need to know if there right. Thank you all! 16ã27 + 7ã108 = 90ã3 16ã9ã3 + 7ã36ã3 16 . 3ã3 + 7 . 6ã3 (48 +42)ã3 90ã3; And ã600x^4 = ã100 . ãx^2 . ã6 = 10x^2...

### ALGEBRA

Please help anyone if you can This one is really confusing me I need the IQR for these set of numbers 0.10,0.18,0.20,0.21,0.24,0.24,0.25,0.26,0.28 What I did was place them in order and worked my way from both end until I got in the middle I came up with 0.24 but not sure if ...

### Math...Geometry

Hello, Can someone please tell me if I worked this out correct and ended with the right answer? Thank You... I need to find the area and Height of this right triangle ( only knowing the lengths of its sides)side 6,5,11... Is this correct? sides 6, 5, 11 -- 6+11+5/2 =22/2=11 A&...

### Math

1. Mackenzie spent a lot of time on her project for Columbus Day. On Monday she worked for 2 hours and 33 minutes on making a poster. On Tuesday she worked for 1 hour and 28 minutes drawing a picture of Columbus. On Wednesday she spent two hours building a model of a Taino ...

### math

the hypothenus of a right angle triangle is 6cm with respect to the other two sides, one is 2cm longer than the other. Find the length of the two other sides to the nearest tenth. when i worked out this question, I got the answer as X=-5.1 or X=3.1 is my answer right, if it is...

jose worked for 13 minutes weeding the garden. when he has worked 20 minutes he will get a dollar, how many more minutes does he need to work to get the dollar?

### Math

1. Mackenzie spent a lot of time on her project for Columbus Day. On Monday she worked for 2 hours and 33 minutes on making a poster. On Tuesday she worked for 1 hour and 28 minutes drawing a picture of Columbus. On Wednesday she spent two hours building a model of a Taino ...

jen,paula, and sarah spent the weekend decorating a neighbors house. They earned \$500.00 between them. When it came to dividing the money, paula had worked three times harder than jen and sarah had worked twice as hard as paula. If the money was divided fairly and according to...

### programming

Week 3 - Expand Pseudo Code The accounting office indicated the code must be able to handle overtime hours. Add functionality to your pseudo code so that if more than 40 hours are worked, the hours over 40 receive time and a half (1.5 * pay rate). Your new output will need to ...

### math

x+2/x+3=x-1/x+1. Solve the following equation for x. The solution is ? Thank you for your help have worked this problem and ones like this for hours can't get the right answer:)

### English

1. He worked in Mr. Batular's circus. 2. He worked in circus. 3. He worked in the circus. 4. He worked in a circus. (Which expressions are grammatical?)

### Math

simplify the expression (4 square root of x)/(6-square root of x) I need help with this. I've worked it out to the point where i got (2 square root of x)/(3-square root of x), but I'm pretty sure that it can be simplified further. If what I'm thinking is right you have to ...

### Math

simplify the expression (4 square root of x)/(6-square root of x) I need help with this. I've worked it out to the point where i got (2 square root of x)/(3-square root of x), but I'm pretty sure that it can be simplified further. If what I'm thinking is right you have to ...

### Math

Greg needs 234 feet of baseboard to finish trimming the floors in his house. He has 145 3/4 feet of baseboard. How much baseboard does he need to buy? 233 4/4 - 145 3/4 _________ 88 1/4 Am I working this correct? Yes. That is right! :-) Yes..... I have worked through that!! ...

### Math

My teacher gave us a puzzle. I have worked on it for 2 hours with both my parents and they can not figure it out. 0 o 0 o 0 o 0 o 0 In the above there are 5 squares. Top left, top right, bottom left and bottom right, and the last one formed by the o's diagaonally. Arrange ...

### math

chip worked at the animal shelter for 6 hours each week for several weeks. he worked for a total of 42 hours. which of the following can be used to find the number of weeks chip worked at the animal shelter?

what reasons might Henry V have had for calling all the soliders, both noble and common, his brother in St. Crispian's day i think because they all worked together in the war. when they have worked and defeated the enemy together they are common, noble hard workers, and ...

### math question

How do i solve this? If it helps i think its B. from how i did it but i don't think i worked it out right X/4 + 1= -6 A.2 B.-4 C.-22 D.-28

### Geometry

I have worked this problem several times and get the same answer but it is not the right one, please help... You are tiling a kitchen floor that is 10 ft wide by 4 yd long. How many square yards of tile do you need? 13.32 yd²-- this is my answer 13 yd² 20 yd² 40 yd²

### ??

why do you times 8.6x1.5x8? where does the 8 come from? You said the employee worked 48 hours in a week, right? 40 hours were paid at his regular rate (\$8.60/hour or 8.6), and the extra 8 hours (overtime) were paid at time and a half (8.6 x 1.5). Once you know what the ...

### Math (surveying)

I am having a really hard time figuring this problem out. I need to see how it is worked. THANKS!

Alice works part-time after school. On Monday, Alice records that she worked three and two-sixth hours. On Tuesday, Alice records that she worked one and seventy-five hundredths hours. On Wednesday, Alice records that she worked two and two-thirds hours. On Friday, Alice ...

Alice works part-time after school. On Monday, Alice records that she worked three and two-sixth hours. On Tuesday, Alice records that she worked one and seventy-five hundredths hours. On Wednesday, Alice records that she worked two and two-thirds hours. On Friday, Alice ...

### Math!(Need More Help!I did #4,is ti right?)

Directions:Write inequalities for the numbers 3 - 4 below. Do not solve them! Problems: 3.Stacey and Luis volunteer at the local hospital. Stacey worked 4 more hours than Luis, and together they worked more than 28 hours. What is the least number of hours each worked? 4.Mrs. ...

### Math

So she saw 461 dolphins that are 5 year so we don't need to estimate on this problem. So I did 461/5 is 92 is the answer. Then the said how many did he spot per summer in the 5 summers he worked so I think we need to divide the answer which is 92 and the 5. 92/5 18 is your ...

### chemistry

thanks DrB I got AgCl also Could you check this problem as well? If you start with .500 moles of NaF, how many moles of CaF will form? I got .250 that is correct as far as i know i got the same thing That's correct. Your answer is right. I can only assume you worked it right. ...

### Physics

In one dimension, a 5g ball is moving to the right at 7 m/s collides with an 8g ball moving to the left at 4 m/s for a perfectly elastic collision. What is the final velocity of both balls? I just don't understand the whole left and right thing. I have already worked it out I ...

### English

1. He worked hard to be a best baseball player. 2. He worked hard to be the best baseball player. (which one is right? Do we have to use 'a' or 'the'? Do they have a different meaning?)

### math

two mechanics worked on a car the first mechanic worked for 5 hours and the second mechanic worked for 15 hours together they charged a total of 1750 what was the rate charged per hour by each mechanic if the sum of the two rates was 160 per hour

### math

Two mechanics worked on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they charged a total of \$2025 . What was the rate charged per hour by each mechanic if the sum of the two rates was \$205 per hour

### Math

Two mechanics worked on a car. The first mechanic worked for 10 hours and the second mechanic worked for 15 hours. Together they charged \$2500. What was the rate charged per hour by each mechanic if the sum of the two rates was \$195 per hour?

### math

Jake worked 12 more overtime hours than Smith one week. If Jake worked 8 overtime hours for every 6 overtime hours that Smith worked, for how many hours of overtime did each person work? Round your answer to the nearest tenth of an hour if necessary. Answer must include unit ...

### math

On saturday, Ana worked 1/4 of a day. On sunday she worked 1/3 of the day. what part of day did she work both days?

### math

I need some explanation on how to to this problem. (a) 3/3^-4 the answer is suppose to be (a)243 i worked on it and i placed the ^-4 to the top so then i got 81/3= 27 so (a) 27... tanks in advance if anyone can explain..

### math

I need some explanation on how to to this problem. (a) 3/3^-4 the answer is suppose to be (a)243 i worked on it and i placed the ^-4 to the top so then i got 81/3= 27 so (a) 27... tanks in advance if anyone can explain..

### DrBob222

On Monday you helped me to understand and answer the one question, but I am not too sure if they want all the calculations that you answered... regretably, I am still a bit lost with these! Below is the question as it is printed: The isotope caesium-137, which has a half-life ...

### Algebra

Find the number of full 8 hours shifts that Cleo worked last month. He worked three times as many 8 hour shifts as 6 hour shifts. He worked a total of 180 hours.

### math

6 builders worked 8 hours a day for 10 days to complete a job.If 8 builders worked 6 hours a day for 3 days,the remaining work has to be completed by 6 builders in 8 days.How many hours does each builder need to work each day?

### math

6 builders worked 8 hours a day for 10 days to complete a job.If 8 builders worked 6 hours a day for 3 days,the remaining work has to be completed by 6 builders in 8 days.How many hours does each builder need to work each day?

### math help

Can someone explain to me the following step by step , i 've looked in websites , plus the book and i want to understand how this problem has this answer. Problem #1 Find the inverse if it exists, for the matrix. -2_1_3 3_-1_0 -4_2_0 Answer is: -4_6_5 -8_12_13 2__0__-1 sorry ...

### Geometry

I need help... Did I end up with the correct answer? A trapezoid has equal nonparallel sides, The upper base is 6, the lower base is 16 ( 11,5) and the diagonal is 12. What is the altitude of the trapezoid? Round your answer to the one decimal place. I was told this is how to ...

### Geometry

Need help I missed this problem on my test. My answer was 31.8in^2. The right answer was 8.0in^2 How should I have worked the problem: A pie has a diameter of 9 inches. Each slice of the pie has a central angle of 45 degrees. What is the area of each slice of pie?

### math

3. the ratio of dollars earned to hours worked is 18/2 . which of the following ratios is the proportional to this? a=48/6 b=24/4 c=54/6 d=3/27 please help I think it b could someone please give me the right answer if tis is worng

### math

Terrance describes the amount of money made based on the # of hours worked by the function rule y= 10h. Given this function how much \$ does terrance earn for each hour worked?

### Math

He describe the amount of money made based the number of hours worked by the function rule y= 10h. Given this function, how much money does he earn for each hour worked? Thanks

### math word problem

Martha earns \$8.76 per hour at her job. Last week, she worked for 32.5 hours. On average, if Martha worked 5 days last week, how much did she earn each day?

### math

last week Coughy worked 4 hours more than Achewy. she also worked twice as many hourse as Pokey. altogether, they earned \$252. if couphy earns \$6.50 per hour, Achewy earns \$9 per hour, and Pokey earns \$5 per hour, find the number of hours that each worked.

### Algebra

Can someone help me on this problem I worked it and worked it and cannot figure it out?? ¨ö Z + ¨ü < ¨ú Z + 1/16

### BEDMAS with decimals

Hi, I'm having trouble with this question that I have worked on, but I didn't get the right answer. 25.1 + 11.4 / 7.5 (3.75)

### math

compute the average of the following numbers:17, 33, 45,66 and 135 I need to see the problem worked out step by step thank you.

### math

thankyou so much in advance.I need to write an equation in the variable x having -sqrt5,6sqrt5 as solutions. This needs to be in standard form ax^2 + bx +c =0. Thank you again and can you show me how you worked It?

### math

I am having a project about mathematicians on George Boole, and I NEED to include where he worked. I tried searching, but I could not find it. It would be helpful if you knew or found information. Thank you

### Chemistry

can anyone check and see if i balanced the equation for the combustion of benzene correctly, thank you. C6H6 + O2 --> CO2 + H2O Answer: C6H6 + 15O2 --> 6CO2 + 3H2O It doesn't look right to me; however, you can check ALL balanced(?) equations and know when you are right ...

### math

point A(-1,-2) B(7,2) C(k,4) K is a constant. The vertices of ABC. Angle ABC is a right angle. Ive worked out the gradient of AB to be 1/2. How do you calculate the value of k?? thanks for the help

### algebra

For the quadratic function f(x) = - x^2 +2x + 6, find the vertex and the axis of symmetry, and graph the function. Again, I need help with this as these are practice examples for an upcoming quiz and I stink at this part of algebra and I need to get it otherwise I won't ...

### math

point A(-1,-2) B(7,2) C(k,4) K is a constant. The vertices of ABC. Angle ABC is a right angle. Ive worked out the gradient of AB to be 1/2. And the negative reciprocals is 2. How do you calculate the value of k?? thanks for the help

### math

point A(-1,-2) B(7,2) C(k,4) K is a constant. The vertices of ABC. Angle ABC is a right angle. Ive worked out the gradient of AB to be 1/2. And the negative reciprocals is -2. How do you calculate the value of k?? thanks for the help

### math

Katy babysat to make some money, but Katy has not worked any hours so (x=0), she has not earned any wages so (0,0) would be one coordinate. Katy earns 10 dollars an hour. She then worked 3 hours, so she now has \$30.00, so (3,30)is another point. Katy worked 15 hours earning ...

### pre calc trig check my work please

sin x + cos x -------------- = ? sin x sin x cos x ----- + ----- = sin x sin x cos x/sin x = cot x this is what i got, the problem is we have a match the expression to the equation work sheet and this is not one of the answers. need to figure out what im doing wrong so i can ...

### simple harmonic motion

So I have the following information: Amplitude (A)=1.60mm, Angular Velocity (w)=2760 and phase constant (o) = pi/2. and I need to find: a)the period of oscillation. b)maximum speed. c)max magnitude of acceleration. Firstly I dont want anyone to give away the answers explicitly...

### science

I am doing a project on Isaac Newton and have to find info on born,died,study, famous scientists he worked with,apple and laws of motion. I have found all the answers except the famous scientists he worked with. I have been on lots of websites but I cannot find one which says ...

### Math(ratio)

Gretchen, Miranda and Ariel worked a total of 105 hours this week. If the ratio of Gretchen's hours to Miranda's to Ariels is 1:4:2, what is the difference between the number of hours Miranda worked and the number of hours Ariel worked?

### Math

Colleen works 40 hours in an office and earns \$300 per week. One week she worked 46 hours. What will her earnings be for the week she worked 46 hours? Include your calculations below.

### Social Studies

The first Amendment protects which rights? Select all that apply the right to own a gun the right to a fair trial the right to practice a religion (or not) the right to criticize the government the right of owning property What do the 15th, 19th, and 26th Amendments have in ...

### Math

I don't if I'm right for these two questions i just need a check if I'm right,if I'm wrong please show me how to get that answer. Rewrite the following exponential functions as logarithmic functions a)f(x)=9^x ans:f(x) Log^-1(xlog(9)) b)f(x)=(7/8)^x ans:log^-1(x(log 7 - log 8...

### algebra

can you show the problems worked out x-y=3 if x=1,2,3,4 etc... and -x+4y=9 if x = 1,2,3,45,6 etc.. I need to graph coordinates. Thanks

### Math

Sheryl gets paid time and a half for working overtime at her job. Last week she worked 47 hours and her paycheck was \$375.78. What is her normal hourly rate? Please help with figuring what formula I need to get the answer. Thanks

### Math-Asap

I have another expression that I need help with. If the hours worked are less than or equal to 40 return the pay as hours worked times hourly wage. -hours*hourlywwage (this is my expression) Otherwise return the pay as the first 40 hours worked times the hourly wage plus those...

### math set 4

dave and anita each earned the same amount of money selling newspapers but each worked different number of days. dave worked for 8 days.he earned 15\$ less per day then anita did. anita worked for 4 days. how much did each earn altogether? how much money did each earn per day? ...

### Chemistry- Writing Net Ionic equations

I need to write the net inonic equation for (NH4)2SO4(aq) and KNO2(aq). I need to know the reactants and the product. I worked it out and got: 2K+(aq) + SO4-(aq) ----> K(SO4)2(s)

### math

mr yang daily wage was \$5 more than mr chen. Although mr yang worked 3 days lss than mr chen, they earn \$180 each. find number of days mr yang worked.

### Pre algebra Am I right??

A six sided number cube is rolled and a coin is flipped. What is the probability that the number on the cube is less than 4 and the coin lands on heads. I worked it out and I think I am right but I would like for someone to double check it for me. 1/2 * 1/2 is .25 which is 1/4...

### ALGEBRA

Hello. Three quick questions that I have worked on just need confirmation. 1. I need to find the intercepts and then use them to graph the equation. 2y-6=2x; I have x = 0 for y - intercept; 2y-6=2(0); 2y-6 = 0; 2y = 6; y = 3. I set y at 0 also. 2 (0) - 6 = 2x; -6=2x; -3=x. so ...

### algebra

Hello. Three quick questions that I have worked on just need confirmation. 1. I need to find the intercepts and then use them to graph the equation. 2y-6=2x; I have x = 0 for y - intercept; 2y-6=2(0); 2y-6 = 0; 2y = 6; y = 3. I set y at 0 also. 2 (0) - 6 = 2x; -6=2x; -3=x. so ...

### math

you need 39% correct out of a %100 tesy how many would u need right

### Math Word Problem

During the summer throughout high school and for a year after, Lewis worked as a lifeguard at the beach. In that 5-year period, he saw a total of 461 dolphins swimming in the distance. About how many did Lewis spot per summer in the 5 summers he worked?

### Math

If I have 5 different types of trees and want to plant them in groups of three, how many different combinations of groups can I make. I worked this out and came out with 30. Am I right? Thanks for your help

Hello. Three quick questions that I have worked on just need confirmation. 1. I need to find the intercepts and then use them to graph the equation. 2y-6=2x; I have x = 0 for y - intercept; 2y-6=2(0); 2y-6 = 0; 2y = 6; y = 3. I set y at 0 also. 2 (0) - 6 = 2x; -6=2x; -3=x. so ...

### chemistry

How many grams of CO2 are contained in 550 mL of the gas at STP I've worked all of these questions and I'm trying to see if I'm right, and if not, where I went wrong.

### math

mr. pursley, have you ever worked geo., trig. etcwith no calu.s with the heat on , when it had to be right?wheather you blew up your target or something else or the bld. collapsed or was built in the correct place? i'm not an answer grazer, but qam an answer seeker.I'm trying ...

### math

hi im in 5th grade i need help with naming angels like e.g right angel,acute,obtuse i lost my thing to measure angels plz help! lol i need it done today tomorrow i need to give it back!!

### algebra

two mechanics worked on a car the first mechanic worked for 15 hours and the second mechanic worked for 5 hours together they charged a total of 1525 what was the rate charged per hour by each mechanic if the sum of the two rates was 175 per hour

### math

amy is paid time and a half for hours worked in excess of 40 hours and double time for hours worked on sunday. If her weekly wage was \$342 for working 50 hours, 4 of which were on sunday, what is her regular hourly rate?

### math

anita earned \$475.54 in 2 weeks have earned the same amount of money each hour that she worked if anita worked a total of 62 hours during those 2 weeks about how much did she earn each hour?

### MATH :[

dave and anita each earned the same amount of money selling newspapers but each worked different number of days. dave worked for 8 days.he earned 15\$ less per day then anita did. anita worked for 4 days. how much did each earn altogether? how much money did each earn per day? ...

### algebra

Hey I am trying to help my son in math. The question is, The scale of a district map is 1 over 10000. Find the distance on the map, in centimeters, for each of the following distances. a) 800m b) 5 km I need to see how this is worked out.

### math

May and Bill took 49 hours to complete their History project. They worked separately on their own project. If May had worked 5 hours less and Bill had worked 6 hours more, May would have put in 2 hours more than Bill. How many hours did May put in for the History project?

### Math help

I need help solving each equation by the substitution method. 1. X=5y-1 X+2y=13 2. -2x+3y=11 X=4y-3 3. X=-9y-1 2x+4y=5 I need help on these so please guide me in the right direction because I'm struggling on this topic!!