Math

Recent Questions

Math
A snack mix contains toasted oat cereal, pretzels, and nuts in a ratio of 2:2:1 by mass. What mass of each ingredient is needed to make the following amounts of snack mix? a)330g b)210g c)500g d)750g

math
After years of teaching, I can say (with 100% made up certainty) that the average number of questions the typical student can complete per minute is 5.  If I choose any student at random (I'm looking at you), what is the probability that yo...er that student could complete ...

math
7^2 + 24^2 =??? Please someone help!!!!!

math
Re arrange the formula C = 15n + 250 to express N in terms of C

math
During the winter it snows 3 out of every 10 days what is the probability that it will snow, in any given week 7 days, more than 3 times?

math
d = mt + b Isolate for M

math
ABCD is a square and P, Q are the midpoint of BC, CD respectively .if AP =a and AQ=b, find in terms of a and b , the directed line segments (i) AB, (ii) AD , (iii) BD and (iv) AC

Math
Write a comparison sentence yo represent this equation. 6×7=42

Math
Of the students in a certain classroom, 9 are in the school play, 12 are in the orchestra, and 15 are in the choral group. If 5 students participate in exactly 2 of the 3 activities and all other students participate in only 1 activity. How many students are in the homerooooom?

Math
The following data give the number of keyboards assembled at the Twentieth century electronics company for a sample of 25 days. 45, 52, 48,41,56,46,44,42,48,53,51,53,51,48,46,4​3,52,50,54, 47,44,47,50,49,52 a.calculate the values of the three quartiles and the ...

Math
The height of the solid cone above is 18 inches and the radius of the base is 8 inches. A cut parallel to the circular bas is made completely through the con so that one of the two results is smaller cone. If the radius of the base of the small cone is 2 inches. What is the ...

math
The length of a rectangular swimming pool is 24m more than twice its width. The perimeter of the pool is 108m. Determine the dimensions of the pool.

Math
According to these data, the mean time students spent on the exam was 94.1 minutes, and the standard deviation was 24.23 minutes. Suppose the exam proctor realized after compiling these data that he had used the wrong start time in his calculation, so that each value for time ...

Math
The major axis of the ellipse lies on the line y=3 and has length 6; the minor axis lies on the line x=–4 and has length 4;

math
HOW MANY SMALL SQUARES WITH A SIDE LENGTH OF 1/2INCH WILL FIT INTO A 2 INCH SQUARE? THE TEACHER SAYS 16 I THINK 8 2 INCH SQUARE WOULD BE: 1INCH * 2 INCH = 2 SQUARES * 4 SQUARES please help!!!!!

Math
A biologist has 40% solution and 10% solution of the same plant nutrient. How many cubic centimeters of each should be mixed to obtain 25 cc of 16% solution?

math
Find the midpoint of the line segment with endpoints (3, 10) and (–1, –16)

math
Find the slope of the line that goes through the points (-6, 3) and (2, 3).

math
Which transformations take f(x)=3x+1 to g(x)=−3x-5 ? I think A Question 1 options: a reflection over the y-axis and a translation 4 units up a reflection over the y-axis and a translation 4 units down a reflection over the x-axis and a translation 4 units up a reflection ...

Math
Cost of 4 books and 5 pens is 32 and cost of 5 books and 4 pens is 31 then find the cost of 1 book B=?

Math
A 16 ounce box of cereal costs $4.00. How many cents per ounce does cereal cost?

math
find each sum or difference 1. -1/2 + 1/3 1. -1/6 2. -1/3 3. 2/3 4. 1/6 I got 2/3 because I added the 2 numerators and got 2 then I kept the LCM as the denominator so I got 2/3. 2. -3 1/5 + -6 1/2 1. -3 2/7 2. -3 7/10 3. -9 2/7 4. -9 7/10 I got number 3 because I added the two...

MATH
find the mean of the data set: 9 4 7 3 10 9

MATH
GIVEN THAT X=2/3 AND Y =1/5 FIND THE VALUE OF X/Y

Math
Help meh please Check my answers I suck at dis 1. 4y+3≤y+6 Answer=y≤3 2. -2y>2 Answer=y<-1 3. y/3<-1 Answer=y<-3 4. 3y≤2y+3 Answer= y≤1 5. Sari has to read a book for English class by the end of the week. She wants to read at least 200 pages in the first 5 ...

math
The lunch bill for the 7 guests came to $154. If Jessica paid for 3 of the guests and Aaron paid for the other 4 guests, how much did each pay?

math
Meg's pension plan is an annuity with a guaranteed return of 3% per year (compounded quarterly). She would like to retire with a pension of $50,000 per quarter for 5 years. If she works 21 years before retiring, how much money must she and her employer deposit each quarter?

Math
A square garden has an area of 65 square meters.The lenght of a side is between which two measurements?

Math
Find the digit that makes blank 2440 divisible by 9 test help im behind allot help.

math / science
a bacteria population doubles every eight minutes. if the population begins with one cell how long will it take to grow to 512 cells?

Math
Amy bought a diamond ring for $6,000. If the value of the ring increases at a constant rate of 5.8% per year, how much will the ring be worth in twenty-one years?

Math Finite
How many Three digit numbers less than 600 can be formed from the digits: 2,3,5,6 & 8. W/ no repetitions allowed.

Math
Experience shows that a ski lodge will be full ​(154 ​guests) if there is a heavy snow fall in​ December, while only partially full ​(93 ​guests) with a light snow fall. What is the expected number of guests if the probability for a heavy snow fall is​ 0.40?

Math
David would like to buy a laptop computer and save 20 percent during sale. He uses his credit card to pay for it. David is counting on getting a lot of money in graduation presents from his parents' business associates. David knows that his credit card company offers a 28 day ...

Math
A restaurant offers a choice of 33 ​salads, 99 main​ courses, and 44 desserts. How many possible choices for a meal are there​ (including single​ items)?

Math
What would (4sqrt(3)-2sqrt(5) be multiplied by to get a product of (4sqrt(3))^3 - (2sqrt(5))^3?

Math
Elizabeth wants to buy a new laptop computer, but she just started her baby sitting job and she hasn't earned any money yet. She figures once she starts earning income she save $90 a month in a saving account that earns three percent interest anually. She learned that the ...

math
(4-5y)-2(3.5y-8)

Math
Most americans throw away 1365 pounds of trash each year is it reasobable to estimate thay amerocans throw away over 10000.00 pounds of trash in 5years please explain the answer

Math
if you have used a fraction strip to name a specific point between 0 and 1 on a number line, how can you find equivalent fractions to name this point?

MATH
At a charity bike rally 2/3 of the student population of heartsworth middle school participated if there are 1200 students at Heartsworth how many participated

Math
5/1 - 2 4/5=

Math
A 512 page book has pages 7 inches wide by 9 inches high. The printed area measures 5.375 iches by 7.75 inches. The left margin is 0.3125 inches and the top margin is 0.5625 inches How wide are the margins at the bottom of each page?

Math
Show sin((a-b)/2) < ((a-b)/2). Why is this true?

math
Tom deposits $800 into an account that pays simple interest at a rate of 6% per year. How much interest will he be paid in the first 2 years?

math
find the sum or difference. 5/6 + 4/9 1. 1/2 2. 9/18 3. 1 5/18 4. 1 1/2 I think it is D can someone please check my work

Math
What is the. Solution to 89+k=-42? A)k=131 B)k=47 C)k=-47 D)k=-131

math help!!
1} Write start fraction 39 over 9 end fraction as a whole or a mixed number in simplest form. (1 point) 4 and one-third 3 start fraction 9 over 39 end fraction 9 and one-third 5 and one-fourth 2} Test 62,004 for divisibility by 2, 3, 5, 9, or 10. (1 point) It is not divisible ...

math
Write start fraction 4 over 11 end fraction as a decimal.

math
The local reader’s club has a set of 36 hardback books and a set of 30 paperbacks. Each set can be divided equally among the club members. What is the greatest possible number of club members?

Math
you have exactly $50.00 to spend on taxable groceries. they charge 4.3% sales tax on food. What is the most you can spend on food, pre-tax?

math
the relative change in price was 45% decrease. If the new price is $68.00 what was the original price.

Math
Calculate the total wage earned by a truck driver for a 55 hour week

Math
your receipt shows that you paid $82.83 for a shirt including sales tax. The sales tax rate is 9%. find the amount you paid in sales tax

Math
- 4 + 8 -10 + (-2) Which expression shows the commutative property? A) -2 - 10 - 4 + 8 B) 4 - 8 + 10 + 2 C) 8 + 4 - 2 + (-10) D) 2 - 10 + 4 + 8 This is my weakest topic, but i think it might be d.

Math
8) Simplify. -2(3)2 - 8 ÷ 2 + 6 A) -18 B) -16 C) -7 D) 7 um I it is b

Math
A 90 N boy is hanging on a rope that extends between two poles. Find the tension of the 2 ropes. The angles were 5 and 10 degrees

Math
The length of a rectangle is 3 more than twice the width. The area of the rectangle is 119 square inches. What are the dimensions of the rectangle?

Math
Bill cut a piece of cloth into 2 pieces. The length of the shorter piece is 5/9 of the longer piece. A find the ratio of the length of the longer piece to the length of the shorter piece to the total length. B if the longer piece is 148.6cm longer than the shorter piece.. Find...

Math
Solve the indefinite integral of 1/sqrt(x^2+2x+5). I solved it all out by completing the square and then trig sub and then drawing a triangle to go back to x variable and got: ln |(sqrt(x^2+2x+5)/2 + (X+1)/2 ) | but the book answer is: ln |(sqrt(x^2+2x+5) + x + 1 ) | So, how ...

Math
Explain why you would make one of the addends a tens number when solving an addition problem

Math
A secretary type 70 words in ten minutes. How many can she type in 2 whole number 3/4

math
perform the indication operation. express the answer in simplest forms

math
A bullet is found embedded in the wall of a room 2.3 m above the floor. The bullet entered the wall going upward at an angle of 39.8°. How far from the wall was the bullet fired if the gun was held 1.2 m above the floor?

Math
Alana has 5 base ten blocks.she has at least one of each type of block.the value of her blocks is greater than 140.what blocks could she have?use an organized list to find the possible answers.

math
In an isosceles triangle, the length of one of the equal side is four less than triple the length of the base. Find length of the base of the triangle if the perimeter of triangle is 55 cm.

Math
Solve the indefinite integral of 1/sqrt(x^2+2x+5). I solved it all out by completing the square and then trig sub and then drawing a triangle to go back to x variable and got: ln |(sqrt(x^2+2x+5)/2 + (X+1)/2 ) | but the book answer is: ln |(sqrt(x^2+2x+5) + x + 1 ) | So, how ...

math
Help!! Complete the function table and write the function rule. Input Output 32 20 14 -2 ? -6 -2 -14 -10 ? Please help!

Math
What are inequalities

math
Maureen purchased 7 dozen apples for $4.13.  How much do they cost per pound?

math
A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing 119 pounds requires 136 milligrams of medicine. What is the weight of a patient who requires 200 milligrams of medicine?

Math
Solve the indefinite integral of 1/sqrt(x^2+2x+5). I solved it all out by completing the square and then trig sub and then drawing a triangle to go back to x variable and got: ln |(sqrt(x^2+2x+5)/2 + (X+1)/2 ) | but the book answer is: ln |(sqrt(x^2+2x+5) + x + 1 ) | So, how ...

math
The length of a rectangle is two more than three times its width. Find the dimensions of the rectangle if the perimeter is twenty meters.

math
Sonia saves 3/19 of her monthly income for retirement. If Sonia earned ​$3800 last​ month, how much did she save for​ retirement?

Math
Show that the set of non zero rational numbers is closed under division

Math
8 and 12

math
A parking garage has floors above and below ground level. For a scavenger hunt, galas friends are given a list of objects they need to find on the third floor and fourth level below ground, the first and fourth above ground, and ground level. a. If ground level is 0 and the ...

math
Show all your work to receive credit! ∠E and ∠F are vertical angles with m∠E=9x+12m∠E=9x+12 and m∠F=3x+24m∠F=3x+24 . What is the value of x?

Algebra
Josie must have at least 320 points in her math class to get a B. She needs a B or better to maintain her GPA so she can play an the basketball team. The grade is based on four 50-point tests, three 20-point quizzes, two 20 point projects, and a final exam worth 100 points. ...

math
find the value for x?? please help: x+8=21, x-32=55,3x=54,x/5=10?????!!!!

Math
Put one digit from (1,0,3,7) in each box to get the correct long division problem

Math
The cost of 1lb of strawberries is a dollar more than the cost of 1lb of grapes. If ms. A bought 2lbs of strawberries and 5lbs of grapes for $12.50. What is the cost of the fruits.

math
32-q+0.25q=15.50 Can someone explain how to solve this?

math
Debra has $67 loonies and toonies. If there are 45 coins in total, how many loonies are there

Math (Planes)
Given the equation x + z = 2. Is P parallel to any of the coordinate planes? Is P perpendicular to any of the coordinate planes?

math
find the sum or difference. 1. 5/6 + 4/9 1. 1/2 2. 9/18 3. 1 5/18 4. 1 1/2 I think it is B 2. 15 5/12 - 11 1/8 1. 4 7/24 2. 4 7/12 3. -4 1/3 4. -4 7/24 I think it is A 3. 5/8 - 3/10 1. 13/40 2. 1/20 3. 1/4 4. 1/5 I think it is C 4. 15/16 - 3/4 1. 1 2. 3/4 3. 3/16 4. 9/16 I ...

Math
Divide 54 into two parts such that one part is 2/7of the other.

math
1. The 5th, 9thand16th terms of a linear sequence are consecutive terms of an exponential sequence GP. Find the common difference in terms of the first term

MATH
Lesson 9: Foundations for Algebra Unit Test CE 2015 Algebra 1 Unit 2: Foundations for Algebra SOMEONE, PLEASE GIVE ME THE ANSWERS 1-30

Math
A man will pay RM 46000 to renovate an office . If the construction materials cost 25% more and the labour costs 30% more , he will need to pay RM 58540. Find the original cost of the construction meterial and the cost of labour .(Used equation)

Math
What is the quotient of −920 divided by 40? Which integer rule determines the sign of the quotient? A) 23; The quotient of integers with unlike signs is positive. B) −23; The quotient of integers with unlike signs is negative. C) 23; The sign of the quotient of integers ...

Math
I need help, please find the exact value of 2log3 27+log3 (1/3)-log3 3^1/2 many thanks

math
Four friends go to a restaurant. After adding a $6 tip they decide to split the bill evenly. If they each paid $9.26, how much was the bill

Math
I am lost!! Find the inverse function of f(x)=log2(4x) Thanks

Math
A boy is 42 years younger than his father .In 8 years' times , he will be 1/4 times as old as his father .Find their present ages. (Answer is boy= 6, father= 48)

Math
A boy is 42 years younger than his father .In 8 years' times , he will be 1/4 times as old as his father .Find their present ages.

Math
In Beloy's fish ball factory, it costs 25 pesos to make 15 pieces of fishball while it costs 40 pesos to make 27 pieces. Assuming that the total cost is described by a linear function, how much does it cost to make 19 pieces of fishball?

Math
Kelly sees some fish at the pet shop.A man buys 2 fish. A boy buys 4 fish. Now there are 3 fish. How many fish did kelly sees at first?

Math
How do I simplify this 17 1/3 + ( -50 1/3) - 5 1/2

Math
What is the mass of a ball whose density is 0.250 g/cm3 and whose volume is 200 cm3? I think the mass is 0.05 kg but not sure plus i don't understand the question

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