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dexar [7]
2 years ago
15

5. Use mental math to determine the solution to

Mathematics
1 answer:
Luden [163]2 years ago
7 0
X = 72, because Multiply all terms by the same value to eliminate fraction denominators then Cancel multiplied terms that are in the denominator finally, Multiply the numbers
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Simón arre que si cuando quieras

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3 years ago
The students at mix middle school painted a mural 25 feet long. The height was 3/10 of the length how high was the mural
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Please help me it is easy,
Basile [38]

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Step-by-step explanation:

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3 years ago
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The volume of construction work was increased by 60% but the productivity of labor increased by only 25%. By what percent must t
Stolb23 [73]

Answer: The answer is 28%.


Step-by-step explanation: Given that the volume of construction work was increased by 60% and the productivity of labour increased by 25% only. We are to find the percentage by which the number of workers must increase to complete the in time.

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According to the question, we have

V=r\times n,\\\\\dfrac{8}{5}V=\dfrac{5}{4}r\times n(1+x).

Dividing the second equation by the first equation, we have

\dfrac{\frac{8}{5}V}{V}=\dfrac{\frac{5}{4}nr(1+x)}{nr}\\\\\Rightarrow \dfrac{8}{5}=\dfrac{5}{4}(1+x)\\\\\Rightarrow 1+x=\dfrac{32}{25}\\\\\Rightarrow x=\dfrac{7}{25}=0.28..

Thus, the required percentage of workers that must increase in order to complete the work in time as scheduled originally is 28%.




5 0
3 years ago
Sasha says that least possible product of 2 -digit number and a nonzero 1- digit number is 11 is Sasha correct ? Explain your re
Alecsey [184]

Answer: No

Step-by-step explanation:

To get the least possible product, you want both the 2-digit number and the 1-digit number to be as small as possible

The smallest 2-digit number is 10

The smallest nonzero 1-digit number is 1

so the smallest product is 10 * 1 = 10

8 0
3 years ago
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