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andreev551 [17]
3 years ago
7

The ratio of the number of boys to the number of girls in a school is 5:7.If there are 600 students in the school,how many girls

are there?
Mathematics
2 answers:
Marina CMI [18]3 years ago
4 0
5x- number\ of\ boys\\7x-\ number\ of\ girls\\\\
5x+7x=600\\
12x=600\ \ \ \ | divide\ by\ 12\\x=50\\\\
5x=250\\7x=350\\\\
There\ are\ 250\ boys\ and\ 350\ girls.
nekit [7.7K]3 years ago
3 0
So,

The secret to solving problems with ratios is to find the value of one unit.

5:7 = 12 units total

To find one unit, divide the total number of students by the total number of units.
600/12 = a

Simplify
50/1 = a
50 = a

The value of each unit is 50.

Now, multiply the units by the numbers in the ratio.
50(5) = b
250 = boys

50(7) = x
350 = x

There are 350 girls.
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Hello from MrBillDoesMath!

Answer:

x = 19, y = 36

Discussion:

x + 3 = 22     (*)

2x - y = 2      (**)


Subtract 3 from both sides of (*)

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x = 19


Substitute x= 19 in (**)

2(19) - y = 2 =>

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38 -y + y = 2 + y =>

38 = 2 + y  =>         (subtract 2 from both sides)

38 -2 = 2 -2 + y =>

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P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


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3 years ago
Calculate the shaded area of the figure.
stiv31 [10]

Answer:

36.5cm²

Step-by-step explanation:

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Area of shaded region=100.5cm²-64cm²=36.5cm²

Therefore, the area of the shaded region is 36.5cm².

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4 years ago
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We want to simplify √(-48).

Note that
i² = -1 by definition.
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3 0
4 years ago
What is the answer to this question? <br> 1.4a^2+4a-63
LUCKY_DIMON [66]

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Step-by-step explanation:

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3 years ago
Current Attempt in Progress
monitta

If at June 1, 2022, Sheffield Corp. had an Accounts Receivable balance of $ 18,900. During the month, the company had credit sales of $

24,500 and collected Accounts Receivable of $ 28,500. The balance in Accounts Receivable at June 30, 2022 will be: $14,900

Using this formula

2022 Balance in Accounts Receivable=Accounts Receivable balance as on June 1, 2022+ Credit sales  -Collected Accounts Receivable

Let plug in the formula

2022 Balance in Accounts Receivable=$18,900+$24,500-$28,500

2022 Balance in Accounts Receivable=$14,900

Inconclusion if at June 1, 2022, Sheffield Corp. had an Accounts Receivable balance of $ 18,900. During the month, the company had credit sales of $

24,500 and collected Accounts Receivable of $ 28,500. The balance in Accounts Receivable at June 30, 2022 will be: $14,900

Learn more here:

brainly.com/question/24297448

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