Rita jogs for 8 miles and then walks an additional 11 miles. She jogs at a rate twice her walking rate and she covers the entire distance of 19 miles in 3 hours. Find the rate she jogs and the rate she walks.
A. 10 miles per hour jogging and 5 miles per hour walking
B. 6 miles per hour jogging and 3 miles per hour walking
C. 6 miles per hour jogging and 7 miles per hour walking
D. 20 miles per hour jogging and 10 miles per hour walking
E. 14 miles per hour jogging and 7 miles per hour walking
Answer: A
You might also like to view...
Write a chain rule formula for the following derivative. for z = f(r, s); r = g(t), s = h(t)
A. =
+
B. =
+
C. =
D. =
+
Solve the problem.The total cost in dollars for a certain company to produce x empty jars to be used by a jelly producer is given by the function C(x) = 0.3x + 27,000. Find the cost of producing 90,000 jars.
A. $54,000 B. $27,000 C. $90,027 D. $27.30
Simplify.
A.
B.
C.
D.
Your Porche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour.
?
?
Calculate
.
?
A.
B.
?
C.
D.
?
E.