.50 + .40m = .48m where m is the number of minutes that equalize the cost......subtract .40m from each side
.50 = .08m divide both sides by .08
.50 /.08 = m = 6.25 minutes
Answer:
1. Going to the close store is cheaper.
Step-by-step explanation:
The difference in the prices of chicken is 3.19 -2.89 = 0.30 per pound, so for 5 pounds of chicken, the far store offers a price that totals 5×$0.30 = $1.50 less.
The difference in travel distances is 8.4 -2.4 = 6 miles, so the total round-trip distance difference is 12 miles. The cost of gas is ...
($3.81 /gal)/(23 mi/gal) = $0.1656 /mi
so the cost of gas for the 12-mile longer trip would be
12×$0.1656 ≈ $1.99
Traveling to the far store, you would spend $1.99 more on gas to save $1.50 on the price of chicken. Going to the close store is cheaper.
Im confused on what your trying to ask...
3x15=45 and 17x15=255 so 45+255=300
The value of <em>x </em>in the equation, (3x + 30), is 10.
