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forsale [732]
3 years ago
13

The ratio of boys to girls in WIN is 2:3. If there are 8 boys how many girls are there

Mathematics
1 answer:
IRISSAK [1]3 years ago
4 0

If there is 8 boys then there is 12 girls because 2x4=8 boys so 3x4=12 girls.

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Length of a rectangle is 4 inches less than twice it’s width of the perimeter is 70 inches what’s the dimensions?
Vedmedyk [2.9K]
W= width
L= length= 2W-4
Perimeter= 70

FIND WIDTH:
P= 2(L + W)
P= 2L + 2W
substitute 2W-4 for L
70= 2(2W-4) + 2W
multiply 2 by all in parentheses
70= (2*2W) + (2*-4) + 2W
70= 4W - 8 + 2W
combine like terms
70= 6W - 8
add 8 to both sides
78= 6W
divide both sides by 6
13= W

FIND LENGTH:
substitute w=13 to find width
L= 2W-4
L= 2(13)-4
L= 26-4
L= 22

CHECK:
P= 2(L + W)
70= 2(22 + 13)
70= (2*22) + 2(13)
70= 44 + 26
70= 70

ANSWER:
length= 22 inches
width= 13 inches

Hope this helps! :)
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Answer:

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6 0
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What is the area of 4 yards, 4 yards 7 yards,13 yards?
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3 0
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Find the circumference of a circle with an area of 676pi
saveliy_v [14]

Answer:

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Step-by-step explanation:

To solve this exercise we first have to calculate the radius of the circle, for this we will use the formula of area of ​​a circle and we will clear the radius

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r = radius

a = π * r²

we clear r

r = √(a/π)

now we replace the known values

r =  √(676π/π)

r = √(676)

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c = π * 2r

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The circumference of the circle is 52π

6 0
3 years ago
Read 2 more answers
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