Solve.A total of 24 cu yd of concrete is required for pouring a foundation. The ratio of cement to sand to gravel for this application is 1:3:4, and the total amount of these components must be 
times the volume of concrete needed. Determine how many cubic yards of each component are needed.
A. 4.5 cu yd of cement, 13.5 cu yd sand, 18 cu yd gravel
B. 4.0 cu yd of cement, 13.0 cu yd sand, 18.5 cu yd gravel
C. 3.0 cu yd of cement, 12.0 cu yd sand, 16.5 cu yd gravel
D. 3.5 cu yd of cement, 12.5 cu yd sand, 16.5 cu yd gravel
Answer: A
You might also like to view...
Use the discriminant to determine the number and type of solutions for the equation. If the solution(s) are real, state whether they are rational or irrational.2 + 4z2 = 2z
A. Two nonreal complex solutions B. Two rational solutions C. One rational solution D. Two irrational solutions
Use a formula to solve the problem.What is the area of a square with side 2.8 cm?
A. 7.84 cm2 B. 21 cm2 C. 5.6 cm2 D. 31.36 cm2
Find the integral.
A. 80(ln x)79 + C
B. 
+ C
C. 
+ C
D. 
+ C
Simplify the expression. Write the result using positive exponents only.Find the area of the triangle. 
A. 
sq m
B. 
sq m
C. 
sq m
D. 
sq m