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Elon is purchasing materials for a gardening project. Mulch costs 
$33 per cubic yard. Edge material costs 
$60 for 5 yards. Elon needs 60 yards worth of edge material. Let 
v be the volume, in cubic yards, of mulch that Elon buys; and let 
c be the total cost, in dollars, of his purchase. Which of the following equations correctly relates 
v and 
c ?
Choose 1 answer:
(A) 
33 v+720=c
(B) 
33 v+1,980=c
(C) 
33 v+3,600=c
(D) 
33 v+18,000=c

Elon is purchasing materials for a gardening project. Mulch costs $33\$33 per cubic yard. Edge material costs $60\$60 for 55 yards. Elon needs 6060 yards worth of edge material. Let vv be the volume, in cubic yards, of mulch that Elon buys; and let cc be the total cost, in dollars, of his purchase. Which of the following equations correctly relates vv and cc?\newlineChoose 11 answer:\newline(A) 33v+720=c33v+720=c\newline(B) 33v+1,980=c33v+1,980=c\newline(C) $60\$6000\newline(D) $60\$6011

Full solution

Q. Elon is purchasing materials for a gardening project. Mulch costs $33\$33 per cubic yard. Edge material costs $60\$60 for 55 yards. Elon needs 6060 yards worth of edge material. Let vv be the volume, in cubic yards, of mulch that Elon buys; and let cc be the total cost, in dollars, of his purchase. Which of the following equations correctly relates vv and cc?\newlineChoose 11 answer:\newline(A) 33v+720=c33v+720=c\newline(B) 33v+1,980=c33v+1,980=c\newline(C) $60\$6000\newline(D) $60\$6011
  1. Calculate Total Edge Cost: First, calculate the total cost of the edge material needed by Elon. He needs 6060 yards of edge material, and the cost is $60\$60 for every 55 yards.
  2. Find Total Cost: To find the total cost for the edge material, divide the total yards needed by the yards per price unit, which is 60yards/5yards=12units60 \, \text{yards} / 5 \, \text{yards} = 12 \, \text{units}. Then, multiply the number of units by the cost per unit, which is 12units×$(60)=$(720)12 \, \text{units} \times \$(60) = \$(720).
  3. Calculate Mulch Cost: Now, we know the cost for the edge material is $720\$720. The cost for mulch is $33\$33 per cubic yard, represented as 33v33v, where vv is the volume of mulch in cubic yards.
  4. Add Edge and Mulch Costs: Add the cost of the edge material to the cost of the mulch to get the total cost, cc. This gives us the equation 33v+720=c33v + 720 = c.