Answer: r = -5/18
Step-by-step explanation: You solve -3(1+6r)+12=14
-3-18r+12=14 (When distributed)
-18r+9=14
-18r=5
r=-5/18
Answer:
Jeffery because the other dude go the 2 numbers wrong (he put the x coordinates on y and y on x)
Answer:
24 in long by 12 in wide.
Step-by-step explanation:
l=2w
288=(2w)×w
288=2w^2
144=w^2
12=w
use w=12 to solve for l
l=2(12)
l=24
5x + 300y = 178
4x + 500y = 197
Multiply the first equation by 5 and the second equation by -3.
25x + 1500y = 890
-12x - 1500y = -591 Subtract.
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13x = 299 Divide.
x = 23.
Solve for y by plugging in 23 for x.
4(23) + 500y = 197
92 + 500y = 197
500y = 105
y = .21
The Daily Fee is $23 and the Charge Fee per mile is $0.21.