Question

Jacqueline has two part-time jobs. She earns $15 per hour, l , working as a lab assistant, and $12 per hour, s , working as a cashier. This is modeled by 15l+12s . Evaluate for l=5 and s=7 to find how much money Jacqueline will earn at her two jobs this week. (1 point) Whats the answer

Answer 1

u sure

Answer 2

Leonard is going to construct a pyramid with cardboard for math class. Find how many square inches (in.2) of cardboard he will need. Use 4(12)bh+b2 , where b , the base of the pyramid, is 3 in. and h , the height of the pyramid, is 8 in.(1 point)

Answer 3

To find out how much money Jacqueline will earn at her two jobs this week, we need to substitute the given values of l and s into the expression 15l+12s.

When l=5 and s=7, we have:

15(5) + 12(7) = 75 + 84 = 159

Therefore, Jacqueline will earn $159 at her two jobs this week.

Answer 4

Yes, I am sure. The calculation is correct. If Jacqueline works 5 hours as a lab assistant earning $15 per hour, she will earn $75. If she works 7 hours as a cashier earning $12 per hour, she will earn $84. Therefore, the total amount she will earn at her two jobs this week is $75 + $84 = $159.

Answer 5

To find how many square inches of cardboard Leonard will need, we need to substitute the given values of b and h into the expression 4(12)bh + b^2.

Given that b = 3 in. and h = 8 in., we have:

4(12)(3)(8) + (3)^2

Simplifying this expression:

= 4(12)(24) + 9

= 1152 + 9

= 1161

Therefore, Leonard will need 1161 square inches of cardboard to construct the pyramid.