First set up your two equations:
x + y = 90
x = 2y - 30
Then substitute what x equals in the second equation into the first equation:
(2y -30) + y = 90
Now solve for y:
3y -30 = 90
3y = 120
y = 40
Then use y = 40 and substitute the value for y into one of your original equations and solve for x. I'll choose the first one, but either one will work.
x+ 40 = 90
x = 50
So your solution is x = 50 and y = 40
Answer:
x = 20
Step-by-step explanation:
hmu for more information
Answer:
A. square root of 3 times 5
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Given function:</u>
<u>The base of the growth rate is:</u>
It represent a 1.6% of growth per year.
A.
B.
<u>p(55) = 7.42 means:</u>
- 55 years after 1963, in the year 2018, the population of Earth is 7.42 billions
∠1 and ∠2 are RIGHT ANGLES, VERTICAL ANGLES, and SUPPLEMENTARY ANGLES.
Hope this helps!
