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13 votes
Help me please thank you

Help me please thank you-example-1
User Amirh
by
8.2k points

2 Answers

4 votes

Answer:

b)30 boys c)1425 beats

Explanation:

User Ndogac
by
7.3k points
13 votes

Answer:

Explanation:

b and g are the number of boys and girls, respectively.

b:g = 3:4

b = 3x, g = 4x

3x+4x = 70

x = 10

There are 30 boys.

:::::

(380 beats)/(4 minutes) = (380/4 beats)/minute = (95 beats)/minute

15 minutes × (95 beats)/minute = 1425 beats

User Chepyle
by
8.5k points

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