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Kay [80]
2 years ago
11

a woman is 10 times as old as her daughter. In 8 years she will be 4 times as old as her daughter. How okd is her mother now?

Mathematics
1 answer:
Bond [772]2 years ago
5 0

Answer:

48 yr. old

Step-by-step explanation:

Assume daughter is 4 and mom is 10 times her age,  so mom is 40.

10 (woman) * 4 (daughter's age) = 40 yr. old mom

Present day...

40 (yr old mom) + 8 (yrs later) = 48 yr. old mom today

4 (yr old daughter) + 8 (yrs later) = 12 yr. old daughter today

So, if mom is 4 times as her daughter's age today...

48 (yr. old mom) / 12 (yr. old daughter) = 4

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2 years ago
Log2(3x+8)=5 which is the equivalent equation?
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\bf \textit{exponential form of a logarithm}\\\\
\boxed{log_ab=y \implies   a^y=  b}\qquad\qquad 
%  exponential notation 2nd form
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7 0
3 years ago
Read 2 more answers
if u travel at a rate of 45 miles per hour, how many min will it take you to travel 1 min ? justify ur response
Semenov [28]

Shouldn't your question be "How many minutes  does it take to travel one mile"?

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