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Oxana [17]
2 years ago
6

a master roof can cover a garage in 1 hour less than her new assitant. if they work together, they can complete the job in 7.75

hours. how long would it take the assistant to complete the job working alone?
Mathematics
1 answer:
Art [367]2 years ago
7 0
Idek i need to unlock sometin sooo
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Solve for a. 1/3(21-3a)=6-a
OverLord2011 [107]

Answer:

no solution

Step-by-step explanation:

Given

\frac{1}{3} (21 - 3a) = 6 - a ( multiply through by 3 to clear the fraction )

21 - 3a = 18 - 3a ( subtract 21 from both sides )

- 3a = - 3 - 3a ( add 3a to both sides )

0 = - 3 ← not possible

This indicates the equation has no solution

5 0
3 years ago
Evaluate the expression when a = 4, b=8 and c=12 4(a+b)-c<br>​
a_sh-v [17]

Answer:

36

Step-by-step explanation:

4(a+b)-c

4(4)+4(8)=16+32-12

48-12=36

4 0
2 years ago
Kora has 2 graham crackers and its enough for 1 s'mores. How many s'mores would Kora make if she had 20 graham crackers?
snow_tiger [21]

Answer: 10 Smores

Step-by-step explanation:

All I did was multiply by 10

2×10=20

So...

1×10=10

3 0
3 years ago
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The length of a poster is 26 inches. The width of the poster is half its length. What is the area of the poster? HELP PLEASE!
xenn [34]

Answer:

338

Step-by-step explanation:

26 divided by 2 is 13. the width is 13. 26 times 13 is 338

hope this helps!

4 0
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Write .125 as a fraction reduced to lowest terms.
VMariaS [17]

Answer:

1/8

Step-by-step explanation:

Hope this helps you! <33

7 0
3 years ago
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