Answer:
Step-by-step explanation:
first lets seperate them
7x3=21
3x7=21 21/2= 10.5
10.5x21=220.5
(480 - 400) / 400 = 80 / 400 = .2 * 100 = 20%.
480 + .10 * 480 = 480 + 48 = 528
(528 - 480) / 480 = .1 * 100 = 10%
(x - 480) / 480 = .10
x/480 - 480/480 = .10
x/480 - 1 = .10
x/480 = 1.10
x = 1.10 * 480
= 528
The information tells us that this triangle is an isosceles triangle meaning two sides and two angles are congruent. Also, this is not a right triangle as the only isosceles right triangle has a ratio of 1:1:2
Hope this helps!
4 5/5; 3 10/5; 2 15/5, 1 20/5.
Answer:
79.2% (to the nearest tenth)
Step-by-step explanation:
use the percent change formula:
PC = [ (difference between initial value and final value) ÷ initial value] x 100
= [(77-16) ÷77] x 100
= 79.22077922...
= 79.2% (to the nearest tenth)