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Anni [7]
3 years ago
11

In a group of 20 there are 7 boys what is the ratio of girls to boys?​

Mathematics
1 answer:
marysya [2.9K]3 years ago
4 0

Step-by-step explanation:

given,

total members in grp = 20

no. of boys = 7

no. of girls = 20 - 7 = 13

so,

the ratio of girls to boys is = 13:7

hope this answer helps you dear...take care and may u have a great day ahead!

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Answer:

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Step-by-step explanation:

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The number of hours it took 25 workers to produce 2300 devices is =

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Then number of devices produced in 1 hour is = \frac{2300}{2000}= 1.15\ devices\ per\ hour

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Then number of devices produced in 1 hour is = \frac{5500}{4200}= 1.31\ devices\ per\ hour

The workers for the army contract are more productive since they produce 1.31 devices per hour whereas the workers for navy contract produces 1.15 devices per hour.

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Answer:

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