The answer is box b, by $0.48
Calculate the surface area of rectangular prism is A = 2 (wl + hl + wh)
w - width, l - length, h - height
The cost is $0.03 per square inch: C = .0.03 * A
Box a:
l = 8 in
w = 3 in
h = 6 in
A = 2 (wl + hl + wh) = 2(3 * 8 + 6 * 8 + 3 * 6) = 2(24 + 48 + 18) = 2 * 90 = 180 in²
C = 0.03 * A = 0.03 * 180 = $5.40
Box b:
l = 10 in
w = 3 in
h = 4 in
A = 2 (wl + hl + wh) = 2(3 * 10 + 4 * 10 + 3 * 4) = 2(30 + 40 + 12) = 2 * 82 = 164 in²
C = 0.03 * A = 0.03 * 164 = $4.92
Thus, it is less expensive to cover box b with foil by $5.40 - $4.92 = $0.48
Answer:
I think it's -180
Step-by-step explanation:
He keeps descending -15 feet every 1 minute
1 x -15 = -15
2 x -15 = -30
12 x -15 = -180
Answer:
a. $13
b. $3
Step-by-step explanation:
Juan wants to start a lemonade stand to earn money. He needs money to purchase the materials before he can sell the lemonade and earn money. His mother agrees to loan him $10. He makes a list of the items he wants to buy.
Cups $2
Lemons $8
Sugar $3
a. How much money do the supplies cost?
b. How much money does he have to spend?
a. Cost of each supply;
Cups $2
Lemons $8
Sugar $3
Total cost of the supplies = $2 + $8 + $3
= $13
b. How much money does he have to spend?
His mother agreed to loan him $10
Total cost of supplies = $13
Amount of money he has to spend = Total cost of supplies - Loan from his mother
= $13 - $10
= $3
Answer:
a.
b.
c. See the step-by-step explanation.
Step-by-step explanation:
A table given by OP
State Year
Tennessee 2002
Tennessee 2002
Ohio 2002
Alabama 2003
Maine 2003
Florida 2004
Florida 2004
Florida 2004
Texas 2004
Texas 2004
California 2005
California 2005
Kansas 2005
a. There are 2 Texas quarters and 13 coins in total, so the probability of selecting a Texas quarter at random is .
b. Analagously, the probability is , because there are 3 quarters minted in 2002.
c. See a and b.
The formula for this question is P(n) = P*(1+r)^n
So the initial population is 8600 or P, and n can be the number of years. r is the rate it grows, 3% or 0.03.
Plug in these values
P = 8600
r = 0.03
n = 3
into P(n) = P*(1+r)^n