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krek1111 [17]
2 years ago
14

The ratio of girls to boys in a gym class is 4 to 7. How many girls are there if there are 21 boys?

Mathematics
2 answers:
Romashka [77]2 years ago
8 0

Answer:

12

Step-by-step explanation:

multiply by the same number it took to get from 7 to 21 which is 3

Please mark brainliest

jek_recluse [69]2 years ago
4 0

Answer:

12 to 21

bc 21/7 = 3, 3x4=12

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Please help me on this question
Ierofanga [76]

Answer:

please mark my answer brainliest

Step-by-step explanation:

  1. 11 students
  2. 26 students
  3. that 2 small divisions =1 unit =1 student
6 0
3 years ago
What is the length of an arc defined by a 60 degree central angle in a circle with a radius of 5 in.?
Natali [406]

Answer:

5.24 in

Step-by-step explanation:

The arc length is calculated as

arc = circumference × fraction of circle

     = 2πr × \frac{60}{360}

     = 2π × 5 × \frac{1}{6}

     = \frac{10\pi }{6} ≈ 5.24 in (2 dec. places )

3 0
3 years ago
A girl has 3 shirts (red, yellow, blue) and 6 pairs of socks (red, blue, green, orange, white, black). What is the probability h
tatiyna

Answer:

1/18

Step-by-step explanation:

P(Orange AND Red)

= P(Orange socks)*P(Red shirt)

= 1/3*1/6

= 1/18

5 0
1 year ago
What is the solution to the equation One-fourth x minus one-eighth = StartFraction 7 Over 8 EndFraction + one-half x?
snow_tiger [21]

Answer:

The solution to the equation is

x = -4

Step-by-step explanation:

We want to find the solution to the equation

(1/4)x - 1/8 = 7/8 + (1/2)x

First, add -(1/2)x + 1/8 to both sides of the equation.

(1/4)x - 1/8 - (1/2)x + 1/8 = 7/8 + (1/2)x - (1/2)x + 1/8

[1/4 - 1/2]x = 7/8 + 1/8

x(1 - 2)/4 = (7 + 1)/8

-(1/4)x = 8/8

-(1/4)x = 1

Multiply both sides by -4

x = -4

3 0
3 years ago
Read 2 more answers
IGIVEEEEEEEEEEEEEEEEEEEEE BRSAINLILSTER
rusak2 [61]

Answer:

G

Step-by-step explanation:

3 0
2 years ago
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