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ElenaW [278]
3 years ago
5

Mom is 60 years old and daughter is half mom's age. How old was daughter when mom was 4 times her age?

Mathematics
1 answer:
rewona [7]3 years ago
4 0

Answer:

  10 years old

Step-by-step explanation:

The difference in ages is 60 -30 = 30 years. When mom was 4 times daughter's age, the difference in their ages was 3 times the daughter's age.

The age difference was 30 years at that time, so the daughter was 10 years old.

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3 0
2 years ago
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Alex17521 [72]
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8 0
2 years ago
Given that sine= 21/29, what is the value of cos 0, for 0° <0<90°? A -square root of 20/29 B -20/29 C 20/29 D square root
Stolb23 [73]

Answer:

Step-by-step explanation:

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x=sqrt(841-441)

x=20

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  Only              |

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4 0
3 years ago
Read 2 more answers
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