146 Answered Questions for the topic 7th Grade Math

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.
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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.
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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
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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  
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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
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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.
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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
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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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7th Grade Math Pre Algebra Very Important

11/10/15

(X-3)(6x-2)
(x-3)(6x-2) 
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7th Grade Math Math Math Help Terms

10/27/15

What is the total number of pencils that the students brought to class?
Five-sixths of the 24 students in a math class each brought one pencil to class. The rest of the students each brought two pencils. What is the total number of pencils that the students brought to... more
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7th Grade Math

10/21/15

How do I combine like terms?
7th grade mathematics 
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10/21/15

how does a graph show a proportional relation ship
PLEASE HELP IM BEATING MY HEAD UP
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7th Grade Math

10/19/15

Ratio word problem
In 2000,the national radio of students to computers with internet access in public schools was 7:1.Winston school has 623 students.If the school had a lower ratio ,how many computers with internet... more
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7th Grade Math

09/09/15

round to the highest place value then divide: 383/124 show your work
Estimating quotients.   Example 41297/5   Look at the two highest digits in the dividend, 41. this cannot be evenly divided by 5 so round to the closest compatible number, 40   40 / 5 =... more
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7th Grade Math Fractions Unit Rate

09/05/15

If 2 1/2 dozen donuts costs $8.00 how much would 1 dozen cost. Using equivalent ratios.
This is a seventh grade math question from a worksheet on Unit Rates with Fraction. The instructions on the worksheet are not helping to explain and I've had no luck online. The entire problem is;... more
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7th Grade Math

08/27/15

How do I solve this question?
Jason had these scores on six math quizzes: 79, 80, 85, 70, 100, and 75. Sean's scores on the first five quizzes were 80, 83,75,95, and 76. What score does Sean need on his sixth quiz to give him... more
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7th Grade Math

04/20/15

if 2 is added to a number and the sum is tripled the result is 20 more then the number. whats the number?
if 2 is added to a number and the sum is tripled the result is 20 more then the number. whats the number?  so i dont get how would you get to the number 
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7th Grade Math Math Word Problem

04/12/15

math word problem... need help!!!!
a school had to buy 16 new science books and it ended up costing 305.92 total. write an equation that can be used to express the relationship between the total cost(t) and the number of books(b)... more
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7th Grade Math

03/16/15

what is the length and width of a window with a perimeter of 25 and a area of 36
This is a rectangular window, so do I use a rectangular formula for area or perimeter or no? That's why I asking a tutor because I not really sure what to do on this problem. If you could be very... more
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7th Grade Math

02/23/15

Zoey inflated 24 balloons. If Zoey inflated 15% of the balloons that are inflated, how many balloons are there in total?
 Zoey inflated 24 balloons. If Zoey inflated 15% of the balloons that are inflated, how many balloons are there in total? 
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7th Grade Math Math Math Help 7th Grade

02/19/15

If y=-8 when x=-3, find x when y=6.
Please answer and show steps, this kind of math is called, direct and inverse variation. Thank you.     Variation is direct
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7th Grade Math

02/10/15

First part: In Union County, Florida, the 1990 census listed the population at 10,252.
Second part: The 2000 census listed the population as 13,442. What percent increase is this to the nearest tenth of a percent
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7th Grade Math

02/03/15

Steo by Step
Last year, a college's tuition was $45,000. This year, the tuition increased by 4%. Find this year's tuition by using a percent greater than 100.
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7th Grade Math

02/03/15

Step by Ste
A jewelry salesperson earns 5 2/5% commission on all sales. Today she sold $6,250 in jewelry. What is her total commission earned?
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7th Grade Math

02/03/15

Help Step by step
Six roommates buy a sofa for $650. If each roommate pays 16% of the price, will their total ammount be equal to the price of the sofa? If not, by what percent will their total differ from the price
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