2 I think I actually don't know but the best guess would be 2
Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
We can solve using proportions

or 4 works is to 10 hours as 5 workers is to x hours.
to solve we cross multiply to get

so it will take 5 men 12.5 hours!
<u>Answer:</u> (update)
<h2>122.5 miles</h2>
<u>Explanation:</u>
given: the total length of the trip = 500 miles
hence the road's length from home to niagara falls = 500/2 = 250
Sleepy Meena missed:
250/100×49 = 2.5×49 = 122.5 miles
:)
Suppose the peg is like a rectangular prism:
It will be a right triangle with two sides of 2 and 2 because the diameter is 4.
c=√(2²+2²)
c=2√2
so the width of the largest peg is 2√2 or 2.83 inch