Answer:
283 square inches
Step-by-step explanation:
Stacking 8 plates with height of each being 0.5 inch will form a cylinder with height 4 inches.
The radius of the cylinder is half the diameter
The total surface area of this cylinder is:
We substitute the values to get:
She will need approximately 283 square inches of wrapping
Answer:
David contributes 3 dollar for every 9 dollars that Ken contributes, how dollars will Ken contribute when David contributed 21 dollars.
Step-by-step explanation:
David and Ken are contributing money to buy a textbook.
They agreed, that every 3 dollars that David contributes, Ken should contribute 9 dollars.
Find how much Ken contributed if David when David contribute 21 dollars.
If we set up a proportion equation to solve this problem, we get;
Answer:
a. Andrea is incorrect
b. By solving for x, we find that x does not equal 8, but it is equal to 7.
Step-by-step explanation:
8+4=2(x-1)
8+4=2x-2
12=2x-2
14=2x
x=7
Answer:
i think it is c. i may be incorrect, i am sorry!
Step-by-step explanation: