Step-by-step explanation:
a)
well, it is kind of written already :
228 miles and 6 gallons.
so, miles/gallon = 228/6 = 38 miles/gallon.
b)
it is not mentioned, but I guess we have to assume that he got the same miles/gallon ratio on this trip as well.
so, again
38 miles/gallon
and he used 9 gallons.
so, he drove 38×9 = 342 miles
Supplementary angles add up to 180 degrees
Complementary angles add up to 90 degrees
So if angle 2 is x
Then angle 1 is x - 28
And we can set up the equation
x + (x-28) = 180
2x - 28 = 180
2x = 208
x = 104
And then the second equation is:
Angle 1 + Angle 3 = 90
Angle 1 = 104 - 28 = 76
76 + Angle 3 = 90
Angle 3 = 14
So the angles are, again:
∠1 = 76
∠2 = 104
∠3 = 14
Answer:
4<x<12
Step-by-step explanation:
8.0+4.0=12.0
8.0-4.0=4.0 or 4
I would go with 150 or 130 but i would double check to be sure
Answer:
(-5, -7)
Step-by-step explanation:
-x, y-> -x, -y