Mr. Imani wants to purchase paper and notebooks for his classroom. At Dollar Discount he can buy packs of paper, p, for $1.25 each and notebooks, n, for $2.50 each. This is modeled by 1.25p + 2.50n. Evaluate for p = 10 and n=30 to find how much it will cost Mr. Imani to purchase 10 packs of paper and 30 notebooks. (1 point)
Responses
$43.75
$43.75
$62.50
$62.50
$450.00
$450.00
$87.50
To find the cost, substitute p = 10 and n = 30 into the expression 1.25p + 2.50n:
1.25(10) + 2.50(30) = 12.50 + 75 = $87.50
Therefore, it will cost Mr. Imani $87.50 to purchase 10 packs of paper and 30 notebooks.
The formula for finding the volume of a square prism is s2h, where s is the length of each side of the square base and h is the height of the prism. Evaluate to find the volume given values of s = 4 and h = 6.(1 point)
To find the volume, substitute s = 4 and h = 6 into the formula s^2h:
4^2 * 6 = 16 * 6 = 96
Therefore, the volume of the square prism is 96 units cubed.
Each month Ms. Tanaka is paid a base salary of $2,500 in addition to $100 for each television that she sells. This is modeled by 2,500 + 100t, where t represents the number of televisions. Evaluate for t = 12 to find how much Ms. Tanaka will earn for selling 12 televisions this month.
To find the amount Ms. Tanaka will earn for selling 12 televisions, substitute t = 12 into the expression 2,500 + 100t:
2,500 + 100(12) = 2,500 + 1,200 = $3,700
Therefore, Ms. Tanaka will earn $3,700 for selling 12 televisions this month.
Robert is preparing a poster-board presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 square inches. To find how much space Robert will have left for his presentation if he uses squares with 7-inch sides, evaluate 720 − 10s2 when s = 7.
To find how much space Robert will have left for his presentation, substitute s = 7 into the expression 720 - 10s^2:
720 - 10(7^2) = 720 - 10(49) = 720 - 490 = 230
Therefore, Robert will have 230 square inches of space left for his presentation.