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Ymorist [56]
2 years ago
15

what's the ratio of boys to girls in a class is 3:4 and if there are 12 boys in the class how many girls are ther​

Mathematics
2 answers:
KiRa [710]2 years ago
7 0

Answer:

Step-by-step explanation:

b/g=3/4 so if there are 12 boys this becomes

12/g=3/4 multiply both sides by g

12=3g/4 multiply both sides by 4

48=3g divide each side by 3

16=g

So there are 16 girls in the class.

snow_lady [41]2 years ago
3 0

Answer:

16

Step-by-step explanation:

Boys is written first so 3:4 the 3 stands for boy.

12 boys in class means that the 3 from 3:4 was multiplied 4 times so you do the same to other side. 4 times 4 is 16, therefore the answer is 16.

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Answer:

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Step-by-step explanation:

just finished the question

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2 years ago
Boadu and ansah formed a company and agreed that their annual profit will be shared in the ratio of 4:5 respectively. If at the
lozanna [386]

Answer:

ghs 20,000

Step-by-step explanation:

If Boadu and ansah formed a company and agreed that their annual profit will be shared in the ratio of 4:5 respectively, the total ratio will be 4 + 5 = 9

Let Boadu share be x

Let ansah share be y

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3 0
2 years ago
1/4 (84x - 100)=?<br><br>I can't solve it! please help me!
slamgirl [31]
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Answer:

Step-by-step explanation:

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frutty [35]

Answer:

D

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6 0
3 years ago
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