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baherus [9]
3 years ago
10

Simplified Quickly please

Mathematics
1 answer:
UkoKoshka [18]3 years ago
4 0

Answer:

3a:20d+35

3b:35u+49q+56

4a:15+20t

4b:96k+120t+84

5a:24t+108m+60

5b:56q+28b+35

6a:14q+10w+24

6b:54v+99+27t

7a:16g+24+24c

7b:30a+55+50d

(i think thats what they are but the picture is small so its kind of hard to see)

Step-by-step explanation:

(since theres 10 total ill just give an example on how i solved 5a)

5(4d+7)

simplify into: (5•4d)+(5•7)

multiply: (20d)+(35)

since you do not know what d is, you cannot add them

remove parentheses once done:20d+35

(you don't need parentheses since multiplication come before addition but its easier to just use them)

<h2>Hope this helps</h2>
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B can finish the job alone in 24 days.

In work-rate problems, a certain person can complete a fraction of the job for a specific timeframe. As stated in the problem, A and B can finish the job by working together for 8 days. It must be noted that the fraction of the job they can finish individually per day is additive.

\frac{1}{A} + \frac{1}{B} = \frac{1}{8}

A can complete the work in 12 days and finish 1/12 fraction of a job per day. This can be substituted directly to the equation to solve for the time B needed to finish the work.

\frac{1}{12} + \frac{1}{B} = \frac{1}{8}

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This means that B can do 1/24 fraction of the job per day and can completely finish the job in 24 days.

For more rate work-rate problems, please refer to the link brainly.com/question/14464103.

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