Step-by-step explanation:
the angle is greater than 180 degrees so it makes it an obtuse triangle
<span>So we have a problem with two unknows and one equation. We have to express one over the other like this: 7a - 2b = 5a + b. First we separate one kind on the left side and the other kind on the right side: 7a - 5a = b + 2b. Then: 2a = 3b. Now we divide both sides by 2 and get: a= 3b/2.</span>
Answer:
x = 1 , y = 2
Step-by-step explanation:
Solve for substitution
The engine would need three gallons of gas.
12/4=3
