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ANEK [815]
3 years ago
12

The ratio of boys to girls in the classroom is 12:25 if there are 120boys how many girls are there​

Mathematics
2 answers:
Ann [662]3 years ago
8 0
Call x is the number of girls in the classroom.
12/120 = 25/x
x = 120*25/12
x=250
Answer 250 girsl
lesya [120]3 years ago
4 0
Ask yourself what do I have to multiply by 12 to get an answer of 120 ( you can just do 120/12, which is 10) then, you multiply the other side by ten as well

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Kathy wants to paint the faces of her standard six-sided die so that each face is either red or blue. However, she does not want
Wittaler [7]

Answer:

The number of ways Kathy can paint her die is 52 ways

Step-by-step explanation:

The permutation and combination related question is answered as follows;

The number of faces in the six-sided die = 6

The number of colors available for painting the six-sided die = 2 colors

Therefore, we have, the total number of ways Kathy can paint her die, 'n', given as follows;

n = ₆P₂ + 2₄P₄ + 2₄P₃ + ₄P₂

Where;

₆P₂ = The number of ways of arranging 2 objects in 6 spaces = 30

₄P₄ = The number of ways of arranging 4 objects in 4 spaces = 1

₄P₃ = The number of ways of arranging 3 objects in 4 spaces = 4

₄P₂ = The number of ways of arranging 2 objects in 4 spaces = 12

∴ n = 30 + 2×1 + 2×4 + 12 = 52

The number of ways Kathy can paint her die, n = 52 ways.

6 0
3 years ago
Translate and solve -5 times b is no less than -35
Allushta [10]

Answer:b=7

Step-by-step explanation:

To translate -5times b is not less than -35

It means

-5b>-35

To solve,divide through by -5

b=7

8 0
4 years ago
Read 2 more answers
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