The answer is going to be 2 because
1+1=2
1 + 1 = 1
a = 1
b = 1
a = b
a2 = b2
a2 - b2 = 0
(a-b)(a+b) = 0
(a-b)(a+b)/(a-b) = 0/(a-b)
1(a+b) = 0
(a+b) = 0
1 + 1 = 0
2 = 0
1 = 0
1 + 1 = 1
Given that 5 workers can pave 10 driveways in 30 days, then:
let x be the number of days that can take 20 workers to complete 38 drive ways;
therefore:
proportion of work completed by 5 workers will be:
5*30/10
=15
proportion of work completed by 20 workers will be:
20*x/38
The time taken for 20 workers to complete 38 driveways will be:
15=20/38x
x=15*38/20
x=28 1/2
The answer is 28.5 days
Answer:
6776
Step-by-step explanation:
77
88
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8 times 7=56 8 times 70= 560 then add together so 616 next line 80 times 7= 560 80 times 70=5600 then add those together 6160 then add the too totals together 6160+ 616= 6776