I think what you are looking for is 5x=300 therefore x=60 so at 60cars he would start to make more.
A
Slope intercept form is y=mx+b. Plug in the m to make the equation y=6x+b. Then plug in the b to make the equation y=6x+4.2.
Elio is right in assuming the relationship between the height and the hours it burns is proportional.
Find the unit rate
14 ÷ 8 = 1.75 cm/h
Divide
21 ÷ 1.75 = 12
You can set this up as an algebraic equation to check the answer.
If the candle is 21 cm tall, it will burn for 12 hours.
Hope this helped you! :)
Answer:
it is the second one.
Step-by-step explanation:
sorry if wrong though
It makes the addition easier if you combine like terms like the two 1/2s and then make them all have the denominator of 12 (changing the numerators to equal it out)