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IgorLugansk [536]
3 years ago
9

If 8 men took 10hrs to build a wall how long will it take 4 men to build the same wall

Mathematics
1 answer:
xeze [42]3 years ago
7 0

Answer:

Step-by-step explanation:

20 hours because there is less men

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The item is now $37.20

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Which of the following territories became part of Unified Italy?
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Step-by-step explanation:

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In a certain​ region, about 21,000 people are needed to support a fire station. How many fire stations would you expect in a cit
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Step-by-step explanation:

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5 0
4 years ago
What is the slope of a trend line that passes through the points (5, 80) and (7, 65)?
Vlad [161]

Answer:

-15/2 or -7.5 or -7½

Negative StartFraction 15 Over 2 EndFraction

Step-by-step explanation:

Slope or gradient of a line is the ratio of change in y co-ordinates to the change in x co-ordinates.

Therefore;

M=∆y÷∆x

The change in y co-ordinates is given by

∆y=y2-y1

Similarly, change in x co-ordinates is given by

∆x=x2-x1

Given the two points as (5, 80) and (7, 65)

X1=5 Y1=80

X2=7 Y2=65

∆y=65-80=-15

∆x=7-5=2

Hence ∆y÷∆x will be -15÷2=-7.5 or -7½

Negative StartFraction 15 Over 2 EndFraction

4 0
3 years ago
Read 2 more answers
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