Answer: Below is the first one
Step-by-step explanation: Second one is right here x=1/5+y/5
Let us set up a system of functions to describe the given situation and see if they ever intersect.
Elena has initially 15000 miles and adds 15000 per year.
we can describe it as Elena = 15000+15000(years).
Marc's equation can be given as = 24000+11000(years).
Setting both conditions equal, we get
15000+15000(years)=24000+11000(years).
Clubbing years on one side we get,
4000(years)=9000
Lets divide by 4000 on each side we get years = 2.25
Hence yes, the mileages will equal the same value (whatever it may be) in 2.25 years from the the beginning of the problem.
Answer:
4
Step-by-step explanation:
So you need to compute all the rates to see which is the best deal.
$1.79/12.5ft^2=$0.1432 per ft^2
$5.29/40ft^2=$0.13225 per ft^2
$8.49/50ft^2=$0.1698 per ft^2
$6/60ft^2=$0.10 per ft^2
So the last option is the cheapes per square foot and thus is the best deal. Ordered from least to greatest.
Sherbert, blue, red, and green