47 degrees
Work:
90+43+x=180
133+x=180
-133 -133
———————
x= 47
Least common multiple is both will multiply in to 30 but 10 will not multiply into 12.so the answer is 30
This is the application of ratio and proportion. You have to
formulate the proportion for this problem:
50 deliveries : 5 days = 400 deliveries : x days
The inner numbers when multiplies should equal the product
of the outer numbers.
400 (5) = 50x
50x = 2,000
x = 40
Therefore, it would take 40 days for the trucking company to
deliver 400 deliveries.
The mural is painted as follow :
blue = 1/4
red = 2/8 = 1/4
green = 3 /12 = 1/4
so, Total = 1/4 + 1/4 + 1/4 = 3/4
which mean the quantity of mural that has been painted = 3/4 = 0.75 = 75%
The attached figure represents an explanation of the problem using fraction strips.