138 Answered Questions for the topic 7th Grade Math

7th Grade Math

10/29/17

A piggy bank contains some quarters, dimes and nickels. The total value of the coins is $8. The bank has x number of dimes.

A piggy bank contains some quarters, dimes and nickels. The total value of the coins is $8. The bank has x number of dimes. The ratio of the nickels to quarters in the bank is 2:1. How many... more
7th Grade Math Prealgebra 7th Grade

10/25/17

you and your friend spent a total of 15 dollars during lunch. your friend's lunch cost 3 dollars more than yours. how much did you spend for lunch?

you and your friend spent a total of 15 dollars at lunch. your friend's lunch cost 3 dollars more than yours did. how much money did you spend during lunch. please add equation and answer
7th Grade Math

09/26/17

Its opposite math don't understand.

8+x=-2  Please help don't understand how to do this problem
7th Grade Math

09/14/17

Hiking up a mountain, you notice that the air temperature drops 10 C for every 1,000 meters

Full problem : Hiking up a mountain, you notice that the air temperature drops 10 C for every 1,000 meters increase in elevation. Write a multiplication expression to represent the decrease in... more
7th Grade Math

04/18/17

According to one study, 35% of Americans live in haunted houses. If 1.5 million Americans were polled, how many actually live in haunted houses?

This is asked just because I was confused how to sort the correct equation for it.
7th Grade Math

04/11/17

The circumference of a circle is 188 meters. What is the approximate radius of the circle?

I'm pretty lost. I think it's 188 divided by 3. Please help me if you can;)
7th Grade Math Area Math Word Problem

03/13/17

There are 640 acres in one square mile. What is the area of the preserve in acres? Explain how you find the number of acres.

This is 7th grade math considering Area
7th Grade Math

03/09/17

how to use the bar graph to find the relative frequency of the event

 How to find the relative frequency using a bar graph? What information has to be in the bar graph?    
7th Grade Math

01/07/17

If a basketball player has a 70% chance to make each shot, what is the probability that he makes the next two shots in a row?

If a basketball player has a 70% chance to make each shot, what is the probability that he makes the next two shots in a row?
7th Grade Math

01/04/17

Solve negative 7 over 3, the whole multiplied by x minus 3 equals negative 52

 don't know how to start solving this. help please!!!
7th Grade Math

12/14/16

the height of the closet is 96 is inches, and aisha would like to have 4 rows of cube organizers.what is the most height of each cube organizer can be

i need help with this its hard and im failing please help me
7th Grade Math

11/16/16

500 students take french, 230 take spanish. 33 more students take french year, 2 less take spanish. how many years before there are 3x french vs spanish

There are 500 students taking french and only 230 taking spanish. each year 33 students take french and each year 2 students drop spanish.how many years will pass before there are three times the... more
7th Grade Math

10/23/16

A camera has a listed price of $751.98 before tax. If the sales tax rate is 9.25% , find the total cost of the camera with sales tax included.

A camera has a listed price of $751.98 before tax. If the sales tax rate is 9.25%, find the total cost of the camera with sales tax included.  
7th Grade Math

10/17/16

I have $440 which needs to be distributed proportionately between 3 groups. The groups are 31, 51, 48 people. How much does each group get?

If the solution is 31x+ 51y+48z= 440.  How do you find the values for x,y,and z? 
7th Grade Math

10/12/16

Five friends went out to dinner. They each paid $13.75 for the meal, including a 7% sales tax. What was the total cost of the meal before the tax was added?

I really need help on this problem!! Any answers? 
7th Grade Math

08/03/16

jake ate 4.5 pounds of candy in one week. If he ate the same amount of candy everyday, how much candy did he eat each day? I am killin myself to get the answer

jake ate 4.5 pounds of candy in one week. If he ate the same amount of candy everyday, how much candy did he eat each day?
7th Grade Math Math Word Problem

05/21/16

(MATH PROBLEM) Backyard Project

http://s1044.photobucket.com/user/ammytian/media/rsz_screen_shot_2016-05-14_at_74650_pm_zpsnfsnku8g.png.html ^ LINK TO PHOTO The following diagram shows an overhead view of your backyard. You wish... more

04/07/16

Find three consecutive odd integers.

The sum of twice the 2 integer and three times the largest integer is five less than four times the smallest integer. Has to have a clear LET STATEMENT.
7th Grade Math

03/11/16

Constant of proportionality

Nila uses the equation c=8h to figure out the total amount c she should charge a customer if she babysits for h hours. Find the constant of proportionality and explain what it means.
7th Grade Math

03/03/16

Ryan rolled a number cube 15 times and got a 4 three times. If he rolls the number cube 600 times, how many times should he roll a 4?

nisjojfsoofskksnkf esfsknfos siks i need help
7th Grade Math

02/16/16

a lab,scientist is studying bacteria which are doubling each hour at 2 p.m. there are 32000 bacteria how many bacteria were there at 9 a.m.

Every hour it decreases and at 2pm with 32,000  bacteria how many, bacteria were there before at 9 am that morning  
7th Grade Math

12/10/15

Please help solve the below word problem

1 step stair uses 1 block 2 step stairs uses 3 blocks 3 step stair uses 6 blocks how many does 10 step stair use? how many blocks for a 37 step stair? how many blocks will be needed to build a... more
7th Grade Math

12/09/15

Anne bought a necklace for each of her three sisters.

She paid $7 dollars for each necklace. Suppose she had $9 dollars left. Write and solve an equation to find out how much money Anne had initially to spend on each sister.
7th Grade Math

11/10/15

Write an equation and solve

12 7th graders entered a contest. This was three less than five times the number of 8th graders who entered. How many 8th graders entered the contest
7th Grade Math

11/10/15

write an equation and solve

Terri lost 4lbs over the summer.  This is 4 more than half the weight she wants to lose by December. How much does Terri want to lose

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