Answer:
r=2
Step-by-step explanation:
y = k x^r is the formula for a direct variation
y = k x^ -r is the formula for a indirect variation
20= 5 (1/2)^ -r
Divide each side by 5
4 = (1/2) ^ -r
Rewriting
2^2 = 2^ -1 ^ -r
2^2 = 2 ^ r
The bases are the same so
2 =r
Answer:
46.3
Step-by-step explanation:
Find the number in the tenth place (2) and look one place to the right for the rounding digit (8) Round up if this number is greater than or equal to 5 and round down if it is less than 5
Thank you for posting your question here at brainly. The choices based on the above question are the below, it can be found elsewhere.
A. 1/7 <span>mpg
B.
7 mpg
C.
35 mpg
D.
175 mpg
The </span>unit rate for the distance traveled to the amount of gasoline used is 7 mpg. The answer is B.
Yes what do you need help with
Answer = $160
Using the formula 100+4n, we need to substitute 15 with n. Therefore making the formula, 100 + 4×15. 4×15 = 60. 60+100= $160.
-Hope it helps!
