Do you need an explanation of the work shown? The distance can be found by multiplying the rate by the time. as long as you know two of three parts, you can find the missing value. There is no problem shown in the picture?
Answer:
4(2p−1)
Step-by-step explanation:
You would subtract 90% and 35% and get 55%. You subtract that by 20 and yiu will have 35% of the 90% mixture
A=a+b/2·h=9+4/2·3.5=22.75
Hoped I helped!
