Answer:
a= 15
Step-by-step explanation:
Given
3a + b = 54 ← substitute b = 9
3a + 9 = 54 ( subtract 9 from both sides )
3a = 45 ( divide both sides by 3 )
a = 15
Answer:
C. He should have added t instead of subtracting t.
Step-by-step explanation:
It would be 10 miles since we use Pythagorean Theorem
Point A is exactly in the middle...it is halfway between 0 and 1...so it is 1/2 or 0.5
