Complimentary angles add to equal 90°. Write two equations to solve for two variable.
J + K = 90
J = K - 18
use substitution or elimination to solve
I will use substitution. substitute (K - 18) for J in the first equation to combine equations into one in only variable K.
(K - 18) + K = 90
2K - 18 = 90
2K = 90 + 18
2K = 108
K = 108/2
K = 54°
J and K are complimentary.
J + 54° = 90°
J = 36°
Answer:
Step-by-step explanation:
Maybe without the x or use a * instead, like:
6^38^3
or 6^3*8^3
Or maybe read the question again because your answer should be right, if not contact the administrator of the website because sometimes bugs like that can happen.
Answer:
Step-by-step explanation:
<u>Logarithms</u>
We need to recall these properties of logarithms:
The equation to solve is:
Applying logarithms:
Applying the exponent property on the left side and the product property on the right side:
Applying the exponent property:
Rearranging:
Factoring:
Solving:
Calculating:
1 hour = 60 minutes
The dishwasher operates at a rate of 1350 dishes per hour, which reduces to 1350/60 = 22.5 dishes per minute.
So in 16 minutes, it can clean (16 minutes)*(22.5 dishes/minute) = 360 dishes.