# Math

## Recent Questions

**Math**

There are 24 students in a science class. Mr. Sato will give each pair of students 3 magenta. So far, Mr. Sato has given 9 pairs of students their 3 magnets. How many more magnets does Mr. Sato need so that each pair of students has exactly 3 magnets? Write down an expression.

**MATH**

In a survey, one out of three people named blue as their favorite color. Two out of seven named red. If 1,092 people were included in the survey, how many named neither blue nor red as their favorite color? A. 416 people B. 432 people C. 540 people D. 512 people

**Math**

How do you write ln(n) in log form? I know that you can convert log of some base by doing ln of the variable over ln of the base, but I don't know how to do the opposite.

**Math**

kory is standing near a building that has a shadow that is 14 feet long. Kris is 5.5 feet tall, and the length of her shadow is 3.5 feet. set up and solve a proportion to determine the height of the building.

**Math**

n a survey, one out of three people named blue as their favorite color. Two out of seven named red. If 1,092 people were included in the survey how many named neither blue nor red as their favorite color? 416 432 540 512 2. The triangles below are similar find the value of X ...

**Math check my answer**

77 is what percent of 192? A. x/100= 77/192;4.01% B. x/100=77/192; 40.1% C. x/77= 100/192; 77.3% D. x/100= 192/77; 249.4% My answer is B. Please help and check my answer if I am wrong please correct me thank you.

**math**

Write 523,582,900,000 in scientific form Is it 5.235829 x 10^-11? Thank you.

**Math**

CHECK AND CORRECT MY ANSWERS PLEASE!! ASAP!! THANKS!!xx Write the fraction 5/6 as a percent. Round to the nearest hundredth of a percent where necessary. 33.33% 66.67% 83.33%** 1.20% Write the decimal 0.237 as a percent. 0.237% 2.37% 23.7%** 237% Ashley used 2/5 of her savings...

**Math**

Determine which ratio forms a proportion with 9/5 by finding a common multiplier? 54/30 45/50 45/40 90/20 Determine which ratio forms a proportion with 12/7 by using cross products? 60/35 24/10 36/14 18/14 Which ratio can from a proportion 20/25,14/21 10/23,18/7 5/45,4/36 5/4,4/5

**math HELP PLEASE**

Given the pattern rule, write the first 5 terms for each sequence: a. Start with 0, add 5 b. Start with 2, multiply by 6 c. Start with 100, divide by 2 and add 10 d. Start with 1, multiply by 3, subtract 1

**math**

42000 - R1 + 6R1 = 0.0042 * 7000 R1 - 0.0041 R1^2 ? what is R1

**math**

What is the surface area of the given figure. A.) 1,008 cm B.) 1,728 cm C.) 1,392 cm D.) 1,216 cm

**math**

Use inductive reasoning to find the next equation in the pattern. 8 - 5 + 3 = 2 x 3 13 - 8 + 5 = 2 x 5 21 - 13 + 8 = 2 x 8

**Math**

Lesson 14 equations and inequalities unit test unit 4 7th grade please help

**math**

which solid does the net form? hexagonal prism hexagonal pyramid rectangular prism rectangular pyramid

**Math**

There were 400 seats in a concert hall. 360 seats were occupied . What percentage of the seats were not occupied ?

**Math**

Population density is the number of people per unit of area. What is the population density of a state that has 626,011 people in 9,620 square miles? Round to the nearest whole number. 650 65 This one? 651 6,507

**math**

sara needs to cover the top and sides of the cylinder below About how many square inches of paper will Sara need? 528 in. 415 in. 207 in. 179 in.

**Math**

Lesson 14 equal equations and inequalities unit test math 7 unit 4 (unit Test) Please help I know a bit but not alot Answers or help? thank you

**math**

Manoj deposited a sum of 64000 in a post office for 3yrs,compound annually at 7 1/2per annum.what amount will he get on maturity?

**math**

veena purchased 5 dozen mangoes at a rate of 10.50 for each mango and sold all the mangoes for rs850.50.what is her profit % ?

**Math**

Sam is going to cook a turkeys for 14 people and he wants to allow 3/4lb of Turkey for each person. 1lb=450g. Small 2kg-3.9kg.medium 4kg-5.4 kg.larg 5.5kg-7.2kg.extra large 7.3kg-9.2kg.but small/medium £5.99perkg. Large/extra large £4.99perkg.now how much will the Turkey for...

**Math**

The measures of the twoa angles in a linear pair are in the ratio 1:3. What is the measure of the larger angle?

**Math**

The measures of the twoa angles in a linear pair are in the ratio 1:3. What is the measure of the lager angle?

**math**

a music store sells 28 mp3 players and 39 red mp3 players. each mp3 player costs $67. what is a reasonable estimate for the total cost of the mp3 players?

**math/science**

a car starts from rest and move at a speed of 30 kph after half an hour.what is the car's acceleration

**MATH!!!**

I tried to multiply the equation by a then b then c... I don't know please help by showing the steps I am very lost Determine a+b+c 25/84=1/a+1/an+1/abc

**math**

Solve using factorization method: x2+7x+10=0

**Math**

Find f. f ''(x) = 20x3 + 12x2 + 10, f(0) = 9, f(1) = 12

**Surface area - math**

A cylindrical water tank is located on level ground. The tank has a height of 49 feet and a diameter of 42 feet. If one gallon of paint covers 350 square feet, how many gallons of paint are required to paint the water tank? i tried: 2π⋅21⋅49 + 2π21^2 and then ...

**math**

y/9=44/54

**Math**

Write 3 16/25 as a percent. A)3.64% B)3.80% C)364% D)380% I think A. Can you check? THANKS

**math**

What is the area of a quadrilateral with vertices at (1, 1), (4, 1), (7, 5) and (4, 5)?

**math**

Tamika’s dad bought a Mustang convertible for 12,000 dollars to celebrate his first job in 1978, which paid him 15,000 dollars a year. If Tamika is to use the same fraction of her salary as her dad to buy a Mustang convertible, which now sells for 32,000 dollars, what will ...

**math**

52 inches is what percent of 20 feet?

**math**

William is traveling at a rate of 75 miles per hour. How fast is William traveling in feet per second?

**Math**

the highest test score scott can receive is a 100.The sum of his first four test scores is atleast 360.Find the range of scores scott must get on his fifth test to have an average greaterthan 70?

**Math**

T 1971 1982 1992. 2003 P. 4. 5. 6. 7 Find slope of each line segment connecting consecutive data points from the table M1= M2= M3= Does the polynomial 0.09t-175 give a good estimate for the world population in year t?

**math**

The median of a set of 8 consecutive even integers is 61. What is the largest integer in the set?

**Math**

Jean is seven years older than her brother Bob if he is three years older than their sister Mary. If the sum of their ages is 40 Siri how old is each you must set up an equation, solve and explain each step

**math**

If you buy a pair of shoes on sale for $48. The price is discounted 25% and the sales tax is 7%. Which of the follwoing statements would be true? Answer choices 1. The final price would be lower if you add the 7% sales tax first and take the 25% discount second. 2. It doesn't ...

**math ( help)**

If I told you a triangle with sides 45 cm, 60 cm, and 75 cm was a right triangle, how would you verify my statement? Develop an argument to convince yourself and your partner that my statement is correct.

**math**

3.50 is 2% of what number?

**Math gr 12**

Help! My friend let me borrow their notes and I don't know how they got these answers because they didn't show their work. Could someone please help me? *The answers are correct btw. David is flying from Detroit to Las Vegas. The airfare is $476. He can afford monthly payments...

**math**

on a loan of $3700 a person pays back $430 monthly over 4 years. how much interest was paid on the loan? show ur work A) 20640 B) 16940 C) 2410 D) 1720

**Math**

Hwan decides to lose weight before the wrestling season begins. He weighs 148 pounds now and loses one pound per week for six weeks. Let y represent Hwan’s weight and let x represent the time in weeks. What is the slope of the line? The y intercept is 148

**math**

The population of Circletown has been growing at an annual rate of 5% for the last 5 years. The population is now 3104 people. What was the population of Circletown 5 years ago?

**Math**

Hwan decides to lose weight before the wrestling season begins. He weighs 148 pounds now and loses one pound per week for six weeks. Let y represent Hwan’s weight and let x represent the time in weeks. What is the slope of the line? What is the y intercept

**Math**

I posted a question, but realized due to my multitasking, completely messed up the question. My question is Which ratios form a proportion? A. 4/9, 12/25 B. 3/7, 18/42 C. 5/11,20/45 D. 5/8, 15/25 I don't understand how to find the answer, could someone help?

**Math grade 12**

My friend let me borrow an assignment to study and for these 2 questions they didn't show their work, but got them correct. I was wondering if you could help me figure out how they got it? Thanks A person borrowed $1400 at 7.2% compounded monthly. He decided to pay off the ...

**Math**

-q/7 (greater than or equal to sign) -1 How do I do this step by step I am very confused. Please help.

**Math**

What type of problems can be solved using the greatest common factor

**math**

The length of AB¯¯¯¯¯ is 5 units. What is the length of the image of the line segment after a dilation with a scale factor of 5/2

**Math help**

How do you find ratios form a proportion?

**Math please help**

The length of AB¯ is 5 units. What is the length of the image of the line segment after a dilation with a scale factor of 5/2?

**Math**

The population of Circletown has been growing at an annual rate of 5% for the last 5 years. The population is now 3104 people. What was the population of Circletown 5 years ago?

**math**

△GHJ∼△MNP Which statements are true? Select each correct answer. m∠J=m∠P (TRUE) ∠H≅∠N (TRUE) HJ¯≅NP¯ (it has the line over them) false GH=MN (TRUE) GJ/MP=GH/MN ( TRUE )

**Math**

5 > z - 3 Would the answer be: 8 > Z? Please help

**math**

Use the data to answer the question: Favorite Sport to Watch: 25% soccer 33% baseball 42% football If 210 people said football was their favorite sport to watch, how many people were surveyed? Thank you!

**math**

hi i've never posted a question before. help me out? A jacket's original price is $65.00. It is on sale for 40% off. You have to pay 5% sales tax. What is the final price of the jacket? Please help me out, thank you so much!!!!

**MATH**

The length of ABÂ¯Â¯Â¯Â¯Â¯ is 5 units. What is the length of the image of the line segment after a dilation with a scale factor of 52? is the answer: 25/2 ?????????????????????

**math**

School started at 8:05 a.m. and ended at 2:40 p.m. The work below shows Erica’s calculation of the length of the school day. Which two errors did Erica make? 1.She subtracted instead of adding the times. 2.She subtracted the end time from the start time. 3.She did not ...

**Math**

Solve the inequality. Explain all steps and Identify the properties used. n/-3+5>4 PLEASE HELP MY GRADE DEPENDS ON THIS

**Math**

divide -2x^3-5x^2+4x+2 by x +2 by x + 2 i got -2x^2-x+6

**Math 170**

16x^2+16y^2+64x-32y+55=0 Identify the conic and find the center, radius(for circle), and a and b(for ellipse or hyperbola) sketch the graph

**Math**

Admission tickets to an advanced movie screening were priced at $ 200 for adults and $ 150 for students. If 450 tickets were sold and the total receipts were $ 14, 400. How many of each type of tickets were sold?

**ELA**

Which sentence uses an infinitive as an adverb? A) My favorite board game to play is stored in the basement. B) Nicole wants to learn the art of rhetoric before next year. C) Dave's favorite thing to do is to walk his dog every evening. D) We met after school to study for the...

**Math**

A man can do a certain task in 21 hours, another man can do the task in 28 hours and a boy can do the task in 48 hours. Find how long it will take to do the task if all three work.

**Math**

In college algebra a student earns an average grade of 86 on his homework and 75 on his quizzes. What final examination grade will give him a total average of 80 if homework 1/10 , quizzes 3/5 and the final examination 3/10?

**Math**

The three angles of a triangle are x°, (x + 30)° , (x – 6)° . Find the dimension of each angle.

**Math**

Mark leaves the house for school walking at the rate of 4 km. per hour. Two hours later Kris follows Mark at a walking rate of 6 km. per hour. How long will Kris have to walk to overtake Mark?

**Math help please!**

I need help with this one, could someone tell me how I would be able to do this? 1. Find the percent of change when the price of a radio changes from $40.00 to $44.00. A. 10% decrease B. 10% increase C. 36.4% decrease D. 40% increase Thanks!

**Math**

What transformation is suggested when a tree falls to the ground

**Math**

Each morning your alarm goes off. There is a 22% chance that you will not wake up and consequently be late for your 9am class. For the first 8 classes of the term, determine the probability that you will be .... a) late exactly 3 times ____ b.) on time for every class ____ c) ...

**Geometry Math**

In designing a circular flower bed where the diameter of the circle is 13 feet long, a gardener decides it would look best to space the flowers 7 inches apart. How many flowers will be needed around the outside of the flower bed? (I've tried finding the circumference and...

**Math Help Please!!!**

10. Write an equation in point-slope form for the line through the given point with the given slope. (5, 2); m = 3 A. y + 2 = 3 (x - 5) B. y + 2 = 3x - 5 C. y - 2 = 3(x + 5) D. y - 2 = 3(x - 5)*** Write an equation in point-slope form for the line through the given point with ...

**math**

When you start your shift, the warehouse has 1,483 ceiling fans. if you pack and ship 32 fans per hour, how many fans will be left in the warehouse at the end of your 8 hour shift?

**Math**

How do you check the answer to a decimal multiplication problem plz explain your reasoning

**math**

Could you explain this? ("Dumb it down for me") So far I know that 2^2 x 3 x 5^4 x 8 x 11^2 is equal to 4 x 3 x 625 x 8 x 121. (I think) ========================================== A number is written with the following factorization: 2^2 × 3 × 5^4 × 8 × 11^2. Is ...

**math**

In ΔABC,AD and BE are the angle bisectors of ∠A and ∠B and DE║ AB.If m∠ADE is with 34° smaller than m∠CAB,find the measures of the angles of ΔADE.

**Math**

How can you check the answer to a decimal multiplication problem

**Math (PROBABILITY)**

Elizabeth wants to use a standard number cube to do a simulation for a scenario that involves three equal outcomes. What is one way in which she can do this?

**Math**

If the probability of an event happening is p, what is an algebraic expression that represents the probability that the event does not happen?

**Math**

You are driving 2760 miles across the country during the first 3 days of your trip you drive 1380 miles. If you continue to drive at the same write each day, how many days will the entire trip take?

**Math**

Compare the graphs of the logarithmic functions f(x)= log(7)x and g(x) = log(4)x. For what values of x is f=g, f>g, and f<g? Explain how you know. I already know what x is for f=g and f>g, but what is f<g? And how do I explain all this?

**Math**

The transformation T:R^2--》R^2 is defined by T(1,0)=(2,-5) and T(-3,2)=(1,4). Find the natural matrix of the linear transformation T and find T(x,y).

**Math**

my family has a $6000/ month budget. we spend 1/3 of our budget on food, 1/4 on our mortgage, 1/5 for clothing, and 1/10 for childcare. How much money is left for other expenses

**Math**

Suppose C and D are 2 × 2 matrices with det(C) = −3 and det(D) = 2. Find the determinant of the matrices 8C^3D2 and 5 C^-1

**math**

I have an equation of P=(170-3x)(x-25) How do I determine the y-intercept I know I can determine the x intercepts by setting x = to zero, so those are easy to find, but I'm not sure how to find the y-intercept. Thank you.

**Math**

An object is thrown upward from the top of a 160-foot building with an initial velocity of 144 feet per second. The height, h, of the object after t seconds is given by the equation h=-16t^2+144t+160. When will the object hit the ground? The object will hit the ground when the...

**Math**

A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 4 feet less than the length of the ladder. Find the length of the ladder if the distance from the bottom of the ladder to the building is 8 feet.

**Math**

after a cyclist has gone 2/3 of her route, she gets a puncture in a tire. Finishing on foot, she spends twice as long walking as she did riding. How many times as fast does she ride as walk? I know that the answer is 4 but do not know how to get to this answer. Can you please ...

**Geometry: Right Triangles**

In my math homework, it is asking me to find the height of a triangle. Does anyone know how to find the height of a triangle? If you could, could someone give me an example problem? Thanks a lot!

**math**

hello I am new here my friend recommended me this website. here is my question: if a clock chimes the number of the hour every hour, how many times will it chime in a day?

**math**

a van travelled 45km on 30 litres of diesel. How far could it travel on 45 litres?

**Math - Steve**

I posted this question yesterday that you answered, so thank you, but how do I put this in my calculator to get this answer? If the exponential equation of best fit is y= 2.9046(1.9798)^x, when will the population be more than 13 million? How would I figure this out? I already...

**math**

How much water must be added to 60 liters of 60 percent alcohol mixture to reduce it to a mixture of 50 percent alcohol concentration? What if 30 percent alcohol mixture is added instead of water?

**math**

The capacity of a rectangular tank is 5.2cubic metre and area of its base is 2.6Ã—1000 square centimetres.find its height

**math**

limit x tends to infinity ( 1+root n)/(1-rootn)

**Math**

The soccer team is selling key chains to raise money for the team. They ordered 100 key chains that sell for .25 each. There is a flat shipping rate of $8. The team sells the key chains for $2 each. With that information, I figured they made $33.00 selling the 100 key chains, ...