Answer: d. 7 and 1/2 hours
Step-by-step explanation:
Given : The time taken by Ana and Beth do a job together = 3 hours
Time taken by Ana to do a job alone = 5 hours
Let t be the time taken by Beth to do a job .
Then, According to the question ,we have
i.e. Time taken by Beth to do a job =
Hence, the time taken by Beth to do a job alone = 7 and 1/2 hours
By definition the ratio is the relation between two numbers, the ratio is 7:15
or expressed as fraction:
7/15
so you can derive as many PAIRS of numbers with the same ratio multiplying the numerator and denominator of the given fraction by the same number, some examples:
<span>7/15 = 14/30 = 21/45 = 28/60 = 35/75 etcetera</span>
Area of a rectangular prism=2(long * wide) + 2(long* high)+2(wide* high)
Data:
long=6 in
wide=3 in
high=2 in-
Area of this rectangular prism=2(6 in* 3in)+2(6 in * 2 in)+2(3 in * 2 in)=
=2(18 in²)+2(12 in²)+2(6 in²)=36 in²+24 in²+12 in²=72 in²
answer: the surface area of this rectangular prism is 72 in².
Answer:
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