I have no idea,but can I still have pointz
Answer:
Step-by-step explanation:
- Plain wrapping paper - p
- Shiny wrapping paper - s
<u>Equations:</u>
- 10p + 4s = 170
- 5p + 3s = 105
<u>Double the second equation and subtract from the first one:</u>
- 10p + 4s - 10p - 6s = 170 - 210
- -2s = - 40
- s = 20
<u>Find p:</u>
- 10p + 4*20 = 170
- 10p = 90
- p = 9
Answer:
45 mph
Step-by-step explanation:
It took the car 4 hours to travel 180 miles
Then
It took the car 4/4 hours to travel 180/4 miles
Since 4/4 = 1 and 180/4 = 45
Then
It took the car 1 hours to travel 45 miles
Therefore ,the car was it going at 45 mph