Austin is comparing the prices of two truck rental company company charges $4 per hour and an additional $70 as service charges
1 answer:
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Answer: (-6, 4)
Step-by-step explanation:
You can use the Elimination method:
- Multiply the the first equation by -3 and the second one by 5.
- Add both equations.
- Solve for y:
- Susbtittute y=4 into any of the original equations and solve for x:
Then the ordered pair is:
(-6, 4)
Answer:
<em>15</em><em> + 7x + 12</em>
Step-by-step explanation:
(6x^2 + 7x + 2) - (-9x^2 - 10)
Flip the sign:
- (-9x^2 - 10) becomes + 9x^2 + 10
Combine like terms:
6x^2 + 7x + 2 + 9x^2 + 10
6x^2 + 9x^2 = 15x^2
2 + 10 = 12
Put it all together:
15x^2 + 7x + 12