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rodikova [14]
2 years ago
15

There are 2 boys for every 3 girls. Today 5 new boys were added making the number of girls and boys the same. How many boys and

girls were there originally?
Mathematics
1 answer:
Anna11 [10]2 years ago
5 0

Answer:

10 boys, 15 girls

Step-by-step explanation:

Original ratio: 2 boys/3 girls

let x be the scale factor of the ratio

2x plus 5 boys over 3x girls = 1 (because the # of boys/girls are the same)-------> 2x+5/3x = 1

Simplify: 2x+5=3x

Simplify: 5=x

plug x back into the original ratio: 10/15

Check: 10/15 = 2/3

10 boys + 5 boys = 15, 15/15 = 1

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It would be 2:3.

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2 years ago
How do i solve this equation?​
Luden [163]

Answer:

x = 28

Step-by-step explanation:

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7 0
3 years ago
Anthony's weight is nine pounds more than twice his brothers weight. Anthony's weighs 59 pounds. how much does his brother weigh
ahrayia [7]
A = Anthony's weight
B = Anthony's brother's weight

  A = 2B + 9   Plug in Anthony's weight
59 = 2B + 9   Subtract 9 from both sides
50 = 2B   DIvide both sides by B
25 = B   Switch the sides to make it easier to read
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Anthony's brother weighs 25 pounds. 

8 0
3 years ago
Read 2 more answers
PLEASE HELP DUE TODAY!! GIVING BRAINLIEST, REPORTING BITLY ANSWERS
bulgar [2K]

Answer:

Minimum: 50

Lower Quartile:  59

Median:  66

Upper Quartile: 74

Maximum: 92

Step-by-step explanation:

50, 55, 58, 60, 62, 64, 68, 70, 72, 76, 84, 92

Minimum: 50

Lower Quartile: (58 + 60)/2 = 59

Median: (64 + 68)/2 = 66

Upper Quartile: (72 + 76)/2 = 74

Maximum: 92

5 0
2 years ago
Can anybody help me with the question in the attachment please?<br>(will mark brainliest)​
PIT_PIT [208]

Answer:

8/12 and 4/12

Step-by-step explanation:

simplified to 2/6 and 1/6

3 0
2 years ago
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