Jaden has a part-time job working for a landscaping company. He earns $25 for each lawn-mowing job, l, and $20 for each pulling-weeds job, w. This can be modeled by 25L+20w. Evaluate for L=4 and w=6 to find how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs. (1 point)
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The formula for finding the surface area of a cube is 6s2, where s is the length of each side of the square. Evaluate for s=10 to find the number of square centimeters (cm2) for the surface area of a cube with a side length of 10 cm. (1 point)
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Alicia works for Thomas Edison Electrical Company. She earns $100 for going to a customer’s house and $65 per hour, h, for the job. This is modeled by 65h+100. Evaluate for h=3 to find how much Alicia will earn for a job that takes 3 hours.(1 point)
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A competitive cliff-diver jumps from a height of 75 feet. Find the number of feet the diver is above the ocean in 2 seconds. Evaluate for t=2 by using the formula 75−16t2, where t is time in seconds. (1 point)
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Gabrielle wants to put a border around her garden. It costs $1.50 per yard for the materials. Use 1.50(2l+2w), where l is the length and w is the width of her garden, to find the cost for a garden that has a length of 4 yards and a width of 3 yards.(1 point)
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no ideas on any of these?
They actually give you the formulas, so what's the problem? Just plug in the numbers they provided.
Post your work if you get stuck.
Jaden has a part-time job working for a landscaping company. He earns $25 for each lawn-mowing job, l, and $20 for each pulling-weeds job, w. This can be modeled by 25l+20w. Evaluate for l=4 and w=6 to find how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs. (1 point)
hi
help
never mind
need answers
To answer these questions, we need to substitute the given values into the given formulas and perform the calculations.
1. For Jaden's earnings:
We're given that the formula is 25L + 20w, where L represents the number of lawn-mowing jobs and w represents the number of pulling-weeds jobs. We're asked to find the amount earned for 4 lawn-mowing jobs (L = 4) and 6 pulling-weeds jobs (w = 6). Substituting these values, we get:
25(4) + 20(6) = 100 + 120 = $220
So, Jaden will earn $220 for 4 lawn-mowing jobs and 6 pulling-weeds jobs.
2. For the surface area of a cube:
We're given that the formula is 6s^2, where s represents the length of each side of the square. We're asked to find the surface area for a cube with a side length of 10 cm (s = 10). Substituting this value, we get:
6(10)^2 = 6(100) = 600 cm^2
So, the surface area of a cube with a side length of 10 cm is 600 cm^2.
3. For Alicia's earnings:
We're given that the formula is 65h + 100, where h represents the number of hours worked. We're asked to find the earnings for a job that takes 3 hours (h = 3). Substituting this value, we get:
65(3) + 100 = 195 + 100 = $295
So, Alicia will earn $295 for a job that takes 3 hours.
4. For the height above the ocean:
We're given the formula 75 - 16t^2, where t represents time in seconds. We're asked to find the height above the ocean after 2 seconds (t = 2). Substituting this value, we get:
75 - 16(2)^2 = 75 - 16(4) = 75 - 64 = 11 feet
So, the diver is 11 feet above the ocean after 2 seconds.
5. For the cost of the garden border:
We're given the formula 1.50(2l + 2w), where l represents the length and w represents the width of the garden. We're asked to find the cost for a garden with a length of 4 yards (l = 4) and a width of 3 yards (w = 3). Substituting these values, we get:
1.50(2(4) + 2(3)) = 1.50(8 + 6) = 1.50(14) = $21
So, the cost for a garden with a length of 4 yards and a width of 3 yards is $21.