For the function f(x) = -12x + 7, find the
1 answer:
Answer:
Step-by-step explanation:
f(x) is the same value as y. Therefore, y = 17. We can place this into slope intercept form (except with a defined value for y) and solve for x.
Start by subtracting 7 from both sides. Then, divide by -12 to solve for x. Finally, simplify the fraction.
17 = -12x + 7
10 = -12x
-10/12 = x
-5/6 = x
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The gas cost will be $19.53 for this trip.
Step-by-step explanation:
Given,
Distance covered by car per gallon = 32 miles
Cost of one gallon = $1.99
Unit rate in terms of miles;
32 miles = $1.99
1 mile =
Therefore,
314 miles = Unit rate of mile * 314 miles
314 miles =
Rounding off to nearest hundredth;
314 miles = $19.53
The gas cost will be $19.53 for this trip.
Keywords: unit rate, multiplication
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