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artcher [175]
3 years ago
10

Some book are to be shared between 2 schools A and B in the ratio of 4:7 if school B received 90 books more than school A, calcu

late
Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

it is very easy so focus

Step-by-step explanation:

\frac{a}{b}  =  \frac{4}{7}

b is more than a by 90

\frac{a}{a + 90}  =  \frac{4}{7}

7a = 4a + 360

3a = 360

a = 120

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25/100×52

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Step-by-step explanation:

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Solve the proportion:
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3 years ago
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It is 4 : 12 p.M. 4:12 p.M.4, colon, 12, start text, space, p, point, m, point, end text Emma's mom will be home from work in 70
Vaselesa [24]

Answer:

40 Minutes.

Step-by-step explanation:

The current time = 4:12 p.M.

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70 minutes = 1 hour 10 Minutes= 1: 10 Hours

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Therefore, Emma's Mom will get home by 5: 22 p.m.

Emma has gymnastics lessons at 6 : 00 p.M.

To determine how much time Emma will have between the time that her mom gets home from work and the beginning of gymnastics lessons, we simply subtract 5:22 from 6.

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Emma  will have 40 Minutes.

5 0
4 years ago
How many minutes is it from 8:00am to 11:40am?
ollegr [7]

Answer:

220 minutes

Step-by-step explanation:

Find how many hours there are between the two times which is 3 hours then multiply 3 by 60 because there are 60 minutes in an hour

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40+180=220

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3 years ago
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Len [333]
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4 years ago
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