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LenKa [72]
3 years ago
13

In a school 40% are boys and 900 are girls. find the total number of students of the school and the number of boys

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0

Answer:

1500 students

600 boys

Step-by-step explanation:

40% are boys, so 60% are girls.

Writing a proportion:

900 / 60% = x / 100%

x = 1500

There are 1500 students in the school, which means there are 600 boys in the school.

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Step-by-step explanation:

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w = - 1\frac{P}{2}



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0.2 Times 10^6 in scientific notatation
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3 years ago
Which gives the prices in order, from least to greatest unit rate? Price B, Price A, Price C Price C, Price B, Price A Price C,
MArishka [77]

Answer:

Price B, Price A, Price C

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Look at the table showing different prices for oranges.

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7 0
3 years ago
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Write x2 - 8x + 13 = 0 in the form (x - a)2 = b, where a and b are integers. a.)(x - 4)2 = 3 b.) (x - 3)2 = 2 c.)(x - 2)2 = 1 d.
loris [4]
The answer is <span>a.)(x - 4)2 = 3.

(x - a)</span>² = b can be expressed as:
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Our equation is                x² - 8x + 13 = 0.
The general formula is    x² - 2ax + (a² - b) = 0

Thus:
8x = 2ax    and a² - b = 13

Divide both sides of the first equation (8x = 2ax) by x:
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Replace a in the second equation (a² - b = 13):
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Now when we have a and b, let's just replace them in the general equation:
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4 0
3 years ago
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