Z is directly proportional to x, that means :
z = k.x, with k is the coefficient of proportionality:
Let calculate k:
When x = 5, z = 55. Plug in:
55 = k.5 → k=55/5 ; k =11
The value of z when = 12 is : z= kx; z = 11(12) and z = 132
Phoebe bought 28 ounces of gourmet cheese for a fondue. If the cheese sells for $6.00 per pound, how much will Phoebe pay for 28 ounces of gourmet cheese?
Answer: 9
Step-by-step explanation:Because you have to loom at the answer
When you are rounding to the nearest tenth, you only look at the number right to the tenths which in this case is 5, so you round up the 6 to a 7, which will be.
8.7
