5.6.4 - Practice: Polynomials and Properties of Exponents Review Practice Answers 1. B
2. D
3. C
4. B
5. C
6. D
7. A
8. A
9. C
10. C
11. B
12. C
13. B
14. A

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x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

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answer