3 years ago

Solve for x (brainly says to write more so this is spaaaaaaam)

Mathematics

2 answers:

DedPeter [7]3 years ago

7 0

Answer: x=3

-13 from both sides
4x=12
divide by 4

borishaifa [10]3 years ago

5 0

Answer: X=3

Because if you subtract 13 on that side you’ll be left with 4X equals 12 then you divide on both sides and that will x equal three

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franklin school has 3 boys for every 4 girls in the fifth grade. there are 140 students in the 5th grade. How many boys are ther

marin [14]

Answer:

There are 60 boys and 80 girls in Franklin School.

Step-by-step explanation:

"franklin school has 3 boys for every 4 girls in the fifth grade." means that the ratio of boys to girls is: 3:4

It can also be written as 3/4

Also given

Total number of students: 140

We will use ratios to find the number of boys and girls in shool.

First of all, we have to calculate the sum of ratio which is: 3+4 = 7

Let b be the number of boys and g be the number of girls

Then

$b = \frac{Ratio\ of\ boys}{Sum\ of\ ratio} * Total\ students\\= \frac{3}{7} * 140\\= 3*20\\=60\\g = \frac{Ratio\ of\ girls}{Sum\ of\ ratio} * Total\ students\\g = \frac{4}{7}*140\\= 4*20\\=80$

Hence,

There are 60 boys and 80 girls in Franklin School.

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3 years ago

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Naddika [18.5K]

Step-by-step explanation:

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