Answer:
x = 65° ∠1 = 65° ∠2 = 115°
Step-by-step explanation:
x + x + 50° = 180°
2x = 180° - 50°
2x = 130°|:2
x = 65°
Answer:
9km
Step-by-step explanation:
30-(13+8)=9km
I hope you understand
Answer:189
Step-by-step explanation:
Answer:
y = 
Step-by-step explanation:
given that y and x are proportional then the equation relating them is
y = kx ← k is the constant of proportionality
to find k use the given condition y = 12 when x = 5
k = 
= 
y = x ← equation of proportionality
when x = 8, then
y = × 8 =
Answer:
When given a percentage of growth or decay, determined the growth/decay factor by adding or subtracting the percent, as a decimal, from 1. In general if r represents the growth or decay factor as a decimal then: b = 1 - r Decay Factor. b = 1 + r Growth Factor. A decay of 20% is a decay factor of 1 - 0.20 = 0.
Step-by-step explanation:
