Answer:
It will take him 11 hours to get to 495 miles at a constant speed of 45.
Step-by-step explanation:
180 miles: 4 hours
180/4 = 45
495/45 = 11
Answer:
-8
Step-by-step explanation:
just do the promble backwards
3.5 times 2 = 6
6-8=-2
-2 times 4 = -8
or solve for x
x/ 4 + 8 /2=3.5
7x=2+4
7x=6
X=6/7 ans
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Answer:
r = 13, 3
Step-by-step explanation:
| r - 8| = 5
All solutions for r by breaking the absolute value into the positive and negative components
r = 13, 3
The resulting equation if Becca isolated x² in the first equation and then substituted it into the second equation is (9-y²) / 25 - y²/36 = 1
<h3>Equation</h3>
x² + y² = 9
x²/25 - y²/36 = 1
From (1)
x² = 9 - y²
substitute x² = 9 - y² into (2)
x²/25 - y²/36 = 1
(9-y²) / 25 - y²/36 = 1
Therefore, the resulting equation is option C; (9-y²) / 25 - y²/36 = 1
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