Answer:
The speed of car production increase at 250%
Step-by-step explanation:
we know that
20 cars in a day represent the 100%
so
Using proportion
Find out how much percentage represent the production increase
The production increase is 70-20=50 cars per day
![\frac{20}{100\%} =\frac{50}{x}\\\\x=100(50)/20\\\\x=250\%](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B100%5C%25%7D%20%3D%5Cfrac%7B50%7D%7Bx%7D%5C%5C%5C%5Cx%3D100%2850%29%2F20%5C%5C%5C%5Cx%3D250%5C%25)
therefore
The speed of car production increase at 250%
Answer:
x=2
Step-by-step explanation:
B makes the most sense. Try it out and let me know!!