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Luden [163]
3 years ago
14

A driver took a​ day-trip driving at two different speeds. He drove 90 miles at a slower speed and 260miles at a speed 20miles p

er hour faster. If the time spent during the faster speed was twice that spent at a slower​ speed, find the two speeds during the trip.
Mathematics
1 answer:
solmaris [256]3 years ago
6 0

Answer:

Step-by-step explanation:

140n+5600=300n

160n=5600

n=35

The slow speed was 35 mph. The faster speed was 75 mph..

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In the 2004 season, Seattle's Lauren Jackson was ranked first in the WNBA for total points and points per game. She scored 634 p
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Using a system of equations, it is found that she made:

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For the system, we have that:

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x + 2y + 3z = 636

  • Observation: I used 636 as there would not be a solution(number of field goals cannot be a fraction) if 634 was used.

She made 27 more 2-point field goals than free throws, hence:

y = x + 27

Then:

x + y + z = 362

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2x + z = 335

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3x + 3z = 582

x + z = 194

z = 194 - x

Equaling both equations for z, finding x:

335 - 2x = 194 - x

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Then, to find y and z:

y = x + 27 = 141 + 27 = 168

z = 194 - x = 194 - 141 = 53

She made:

  • 141 free throws.
  • 168 two-point field goals.
  • 53 three-point field goals.

You can learn more about system of equations at brainly.com/question/25960609

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