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lapo4ka [179]
3 years ago
10

A class is attended 21 boys and 15 girls. Write the ratio of girls to students in the class as a fraction in lowest terms

Mathematics
1 answer:
Otrada [13]3 years ago
4 0
5/12 is the answer just do 15 and then add 15 + 21 to get 36 and then you reduce 15/36 and get 5/12
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A 16 foot piece of string is cut into two pieces so that the longer piece is 1 foot longer than twice the shorter piece find the
MAVERICK [17]

x = long piece

y = short piece

 x = 2y+1

2y +1 +y =16

3y +1 = 16

3y =15

y = 15/3 =5

 y = 5

x = 2(5) +1 = 11

short piece is 5 feet

long piece is 11 feet

8 0
4 years ago
If 3 lawns are mowed in 4 hours, how long does it take to mow 21 lawns?
VladimirAG [237]

Answer:

28 hours

Step-by-step explanation:

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6 0
3 years ago
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7 0
3 years ago
What does x equal in this equation -5x + 8 = -2
AnnyKZ [126]

Answer:

x = 2

Step-by-step explanation:

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8 0
3 years ago
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the length of a rectangle is 5 centimenters less than twice its width. the perimeter of the rectangle is 26 cm. what are the dem
inysia [295]
L = w - 5
2*l + 2*w = 26
2*(w - 5) + 2*w = 26
2w - 10 + 2w = 26
4w = 36
w = 9
l = w - 5
l = 9 - 5
l = 4

Final Answer:
The rectangle is 4cm long and 9cm wide.
Hope I helped :)
4 0
3 years ago
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