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svetlana [45]
3 years ago
10

The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many students are girls?

Mathematics
2 answers:
AnnyKZ [126]3 years ago
5 0

Step-by-step explanation:

3+5=8

40÷8=5

5x5=25 girls

5x3=15

antiseptic1488 [7]3 years ago
4 0

Answer:

the number of girls are 16

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Step-by-step explanation:

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PLEASE ANSWER WITH ALL THE MATH
Colt1911 [192]

9514 1404 393

Answer:

  • Jacob: 4
  • his mother: 39

Step-by-step explanation:

Let J and M represent the current ages of Jacob and his Mother.

<u>currently</u>:

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<u>in 11 years</u>:

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Using the first equation to substitute for M in the second, we have ...

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3 years ago
twice a number plus another number is 310. The difference between the two numbers is 55. What are the two numbers
Masteriza [31]
T us assume the two numbers to be "x" and "y".
Then
2x + y = 310
And
x - y = 55
Let us take the second equation and find the value of x in relation to y.
x - y = 55
x = y + 55
Now let us put the value of x in the first equation, we get
2x + y = 310
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3 years ago
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Scilla [17]

Answer:

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