Answer:
x=4-y
x=4−y
Step-by-step explanation:
1 Factor out the common term 22.
-2(x+y)=-8
−2(x+y)=−8
2 Divide both sides by -2−2.
x+y=\frac{-8}{-2}
x+y=
−2
−8
3 Two negatives make a positive.
x+y=\frac{8}{2}
2
8
4 Simplify \frac{8}{2}
to 44.
x+y=4
5 Subtract yy from both sides.
Done
168 in
Pythagoras says:
b² + 56² = 70²
so
b² = 70² - 56²
b = √1764 = 42
so the perimeter is 70+56+42 = 168
Answer:one time
Each time they fill up the car can go 500 miles
