3 years ago

The ratio of grade 7's to grade 8's is 5:3. If there

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

Answer:

240 students

Step-by-step explanation:

Grade 7 : Grade 8 = 5 : 3

Number of seventh grade students = 5x

Number of Eighth grade students = 3x

3x = 90

x = 90÷3

x = 30

Total students = 5x + 3x = 8x = 8 * 30 = 240

You might be interested in

Which percent is equivalent to 1 9/12

Advocard [28]

Answer:

175%

Step-by-step explanation:

7 0

2 years ago

I can someone how to do this plzzz

Aleonysh [2.5K]

Its D .HOPE IT HELPS !

5 0

3 years ago

Look at these numbers. 0.3,

timama [110]

0.3.......the 3 is in the tenths place
0.103....the 3 is in the thousandths place
0.13.....the 3 is in the hundredths place

0.3 is ur answer

8 0

3 years ago

Read 2 more answers

Suppose j varies jointly with g and v, and j=2 when g=4 and v=3. <br> Find j when g=8 and v=9.

vladimir2022 [97]

Answer:

$j=12$

Step-by-step explanation:

we know that

In a join variation, If j varies jointly with respect to g and v, the equation will be of the form $j = kgv$

where k is a constant

step 1

Find the value of k

we have

j=2,g=4,v=3

substitute and solve for k

$2 = k(4)(3)$

$2 = 12k$

$k=\frac{1}{6}$

The equation is equal to

$j=\frac{1}{6}gv$

step 2

Find the value of j when g=8,v=9

substitute the values in the equation and solve for j

$j=\frac{1}{6}(8)(9)$

$j=12$

3 0

3 years ago

Sandra wants to wrap a gift box 6 inches in length, 4 inches in height, and 13 inches in width. How much wrapping paper does San

Murrr4er [49]

Answer:312

Step-by-step explanation: multiply 6*4*13

8 0

2 years ago