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Gekata [30.6K]
3 years ago
11

The swimming pool at Spring Valley High School is a rectangle with a width of 75 meters and a length of 35 meters. Around the pe

rimeter of the pool is a tiled floor that extends w meters from the pool on all sides. Find an expression for the area of the tiled floor.
Mathematics
1 answer:
stealth61 [152]3 years ago
4 0
Same as before

total=(2w+75)(2w+35)=4w²+220w+2625

pool=75 times 35=2625

minus pool from total
4w²+220w+2625-2625=4w²+220w
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Answer:

His original speed was 60 mph.

Step-by-step explanation:

The average speed formula is shown below:

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On the second leg of the trip Mr. Blue drove faster at a speed of "x + 10" mph, so the time it took him to complete the trip was 15 minutes less, therfore:

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Applyint the time and speed from the second leg to the average speed formula we have:

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