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uysha [10]
3 years ago
13

A school has 380 students of whom 70% can swim. If 40% of the boys connot swim and 200 girls can swim, how many girls are there

in the school
Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
5 0

Answer:

263

Step-by-step explanation:

380=total

70%=swimmers

70%×380=266swimmers

30%=non swimmers

i.e.100%-70%

380-266=114 non swimmers

40%of 114are boys

=46boys

60%are girls

i.e. 100%-40%

114-46=68

68+200=268girls

Marysya12 [62]3 years ago
4 0

Answer:

There are 200 girls in that school

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LuckyWell [14K]

Answer:

6

Step-by-step explanation:

We can think of the 10 black bags as 2 sets of 5-black bags (10 divided into groups of 5; 10 / 5 ; is 2 groups/sets). So, we would also have two sets of 3 (3 x 2 = 6), or 6 bags.

5 : 3 = 10 : 6

(multiply both numbers by 2)

4 0
2 years ago
What is the answer to negative 1/4-16 1/5 divided by 6???
Luba_88 [7]

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4 0
3 years ago
The perimeter of a rectangle is 80 inches, if the width is 18 inches what is the area of the rectangle? A.22 sq.in B.324 sq.in C
Tanya [424]

Answer:

396 in^2

Step-by-step explanation:

The perimeter of a triangle is given by the formula:

● P = 2w+2L

L is the length and w is the width

■■■■■■■■■■■■■■■■■■■■■■■■■■

The width hereis 18 inches and the perimeter is 80 inches.

Replace w by 18 and P by 80 to find L.

● P= 2L+2w

● 80 = 2L + 2×18

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Substrat 36 from both sides

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So the length is 22 inches

■■■■■■■■■■■■■■■■■■■■■■■■■■

The area of a rectangle is given by the formula:

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● A = 22×18

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6 0
3 years ago
Please answer quickly thanks :) good morning btw
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1. 1/9

2. 0

3. -9

4. -1

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8 0
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Answer:

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12(3.75+4.00)

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3 years ago
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