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vladimir1956 [14]
3 years ago
15

5x ^ 2 + 2x + 11 - 7 + 4x - 2x ^ 2

Mathematics
1 answer:
yuradex [85]3 years ago
4 0

Answer:

3x^2 +6x +4

Step-by-step explanation:

5x ^ 2 + 2x + 11 - 7 + 4x - 2x ^ 2

Combine like terms

5x ^ 2- 2x ^ 2 +    2x + 4x     + 11 - 7

3x^2 +6x +4

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Taylor took 6 hours to drive home from college for Thanksgiving break, a total distance of 290 miles.
vredina [299]

Answer: at 50 mph, she drove for 4 hours.

at 45 mph, she drove for 2 hours.

Step-by-step explanation:

Let t represent the time that she spent driving at 50 miles per hour.

Taylor took 6 hours to drive home from college for Thanksgiving break. This means that the time that she spent driving at 45 miles per hour is (6 - t) hours.

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Distance covered while driving 50 miles per hour is

50t

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(02.03) A bicyclist rides 16 miles in 144 minutes. If she continues at this speed, how long will it take her to travel 36 miles?
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Let's solve your inequality step-by-step.

−12x−0.4>0.2(36.5x+80)−55

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Step 2: Subtract 7.3x from both sides.

−12x−0.4−7.3x>7.3x−39−7.3x

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Step 4: Divide both sides by -19.3.

−19.3x

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