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iren2701 [21]
2 years ago
7

The green number is 50 btw if anyone could help me thank you I’ll give brainliest

Mathematics
1 answer:
a_sh-v [17]2 years ago
5 0
Green is 50 and the blue is 30 degrees
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The ratio of boys to girls in Jamal's class is 3:2. If four more girls join the class, there will be the same number of boys and
olchik [2.2K]

Answer:

12 boys

Step-by-step explanation:

From the above question:

Number of boys = 3

Number of girls = 2

Boys: Girls

3:2

Let :

a = boys

b = girls

Hence, a : b = 3 : 2

a/b = 3/2  

Cross Multiply

2a = 3b .......... Equation 1

a = 3b/2

If four more girls join the class, there will be the same number of boys and girls

Hence,

a: b + 4 = 3 : 3

a/b + 4 = 3/3

Cross Multiply

3a = 3(b + 4)

3a = 3b + 12 ........ Equation (2)

From Equation 1: a = 3b/2

Substitute 3b/2 for a in Equation 2 we have:

3a = 3b + 12 .........Equation 2

3(3b/2) = 3b + 12

9b/2 = 3b + 12

Cross Multiply

9b = 2(3b + 12)

9b= 6b + 24

9b - 6b = 24

3b = 24

b = 8

Substitute 8 for b in Equation 1

a = 3b/2

a = 3 × 8/2

a = 24/2

a = 12

Therefore, the number of boys in the class is 12

7 0
2 years ago
What is 12/7 as an mixed number ??
joja [24]

Answer:

1 5/7

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
After a 15% off Sale, some jeans were $11.50. how much were the jeans before the sale?
irakobra [83]
100% + 15% = 115% -> 1.15 (multiplier)

Jeans before sale = $11.50 * 1.15

=$1322.50

Please make this answer the brainiest.
3 0
3 years ago
Read 2 more answers
Can you put (4,-3),y=3x-5
Brut [27]
No because 3 time 4 is 12 and 5 minus 12 does not equal -3
6 0
3 years ago
Read 2 more answers
A college offers shuttle service from Dickson Hall or Lot B to its
marta [7]

Answer:

At 10:30 A.M.

Step-by-step explanation:

A college offers shuttle service from Dickson Hall or Lot B to its  campus quad.

At 9:10 A.M the first shuttle leaves from their locations for the campus.

If the shuttles leave from Lot B every 10 minutes and leave from Dickson Hall every 12 minutes, then both the shuttles will leave their origin at the same time after 60 minutes.

This is because 60 is the smallest multiple of 10 and 12 which is common for them.

Therefore, 10:30 A.M. is the next time when both shuttles will depart for the campus at the same time. (Answer)

8 0
3 years ago
Read 2 more answers
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