keirarae2005
21.04.2021 •
Mathematics
1. Arlo's gas purchases for the last four week were: 5.321 gallons, 2,87
gallon, 7 gallons, and 4.879 gallons. What was his total purchases?
a. 18.73 gallons
b. 20.07 gallons
c.23.32 gallons
d 17.650 gallons
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Ответ:
11.5 ft
Step-by-step explanation:
The length of the shadow of the building = length of the shadow - distance of the building
= 52 - 32
= 20
Let the height the shadow strike the side of the building be h
then by similar shape rule
h / 20 = 30 / 52
52h = 30 x 20
52h = 600
h = 600/52
h = 11.53846154
h ≈ 11.5