Use proportions to find the height of the building-
=
The x is the height of the building.
It is over 1 (the height of the other building) because both are heights.
Similar triangles are in proportion so the other fraction is in proportion to it.
Cross multiply(x times .2) (8 times 1). You will get this equation-
.2x=8
Solve for x by dividing-
x=40
Since this was done in meters, the answer is-
The building is 40 meters.
Answer:
6 cm
Step-by-step explanation:
A = 4πr^2
4πr^2 = 36π cm^2
r^2 = 9 cm^2
r = 3 cm
d = 2r = 6 cm
Answer:
(x+4)(x-3)
Step-by-step explanation:
Answer:
9 - (2/x)
Step-by-step explanation:
Nine minus
9 -
the quotient of two and a number x
2/x
The expression is
9 - (2/x)
70 pounds was the original price of the chair before the sale.
Original price = 100%
discount rate = 10%
New price = 90%
The new price of the chair is 63 pounds. It is 90% of the original price. Therefore, 63 pounds is divided by 90% to get the original price.
63 / 90% = 70 original price
70 * 10% = 7 sales discount
70 - 7 = 63 discounted price