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zhuklara [117]
4 years ago
12

Mr. Alvarez has 36 kids in his 7th period class The ratio of boys to girls is 5:7. How many boys are there? How many girls are t

here?
Mathematics
1 answer:
Eddi Din [679]4 years ago
4 0

Answer: 15 boys

Explanation: ratio 5:7

5 + 7 = 12

Number of boys = 5/12 × 36

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Dario decides to take each one of the 4 pieces and share it equally among the 5 of them. First, he divides one piece into 5 equa
Nitella [24]
1/5.
If 4 pieces of gum are each divided into 5 parts, that will mean there will be 20 smaller parts (5*4=20).
Each person will get one part of each piece of gum. If there are 4 pieces of gum originally, this means each person gets 4 small pieces of gum
If each person gets 4 small pieces of gum and there are 20 small pieces altogether, that makes the fraction 4/20
Since 4 and 20 are both divisible by 4, that makes the simplified answer 1/5.
4 0
4 years ago
Which of the following represents “ 10 times the sum of a number and 14 is equal 9 times the number”?
solong [7]

Answer:

The expressión is:

10(a+14) = 9a

and the number is:

-140

Step-by-step explanation:

The expression is:

10(a+14) = 9a

then:

10*a + 10*14 = 9a

10a + 140 = 9a

10a - 9a = -140

a = -140

Check:

10(-140+14) = 9*140

10*-126 = 1260

4 0
4 years ago
If 60% of a number is 90, what is 4/5 of the <br>number?​
sukhopar [10]

Answer:

120

Step-by-step explanation:

Let the required number be x

So,

60% of x = 90

0.6x = 90

x = 90/0.6

x = 900/6

x = 150

\frac{4}{5} x =  \frac{4}{5}  \times 150 = 4 \times 30 = 120 \\

7 0
3 years ago
What is thesimlified form of sqrt(48n^9)
garik1379 [7]
4n^4 √3n I believe would be the simplified form.
4 0
4 years ago
Seven more than the quotient of a number and 5 is equal 2
faust18 [17]

Answer:

-20

Step-by-step explanation:

n/4 + 7 = 2

n/4 = -5

n = -20

8 0
3 years ago
Read 2 more answers
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