Solve the problem.Suppose that y is directly proportional to x and that y = 24.5 when x = 7. Find the constant of proportionality k. Then, find y when x = 18.
A. k = 171.5; y =
B. k = 3.25; y = 58.5
C. k = 3.5; y = 81
D. k = 3.5; y = 63
Answer: D
Mathematics
You might also like to view...
Use addition to check the subtraction problem. If the answer is incorrect, find the correct answer.
A. Incorrect; should be 6474 B. Incorrect; should be 7464 C. Incorrect; should be 6564 D. Correct
Mathematics
Write an equivalent expression. Use a commutative law.y + 6
A. y6 B. 6(y + 1) C. 6y D. 6 + y
Mathematics
State whether the graph is or is not that of a function.
A. Yes B. No
Mathematics
Decide whether the equation defines y as a function of x.y = 3x - 3
A. function B. not a function
Mathematics