Answer:
You can use 3x-8=22
Step-by-step explanation:
You can add 8 to both sides and then divide both sides by 3. x will equal ten.
Answer:
Step-by-step explanation:
It is a parameter, I think. The population is limited to all of the restaurant's customers. Presumably they don't come in to look at the waitresses -- although that might happen. They are there for coffee donuts or a meal, so they are spending money, that's what all of them have in common.
So the population is very confined and very well defined.
The owner is finding a mean. Anything like this is a parameter which defines some aspect of the population.
Answer:
a. <u>y = $3 + $2.50x,</u>
b. <u>$23</u>
Step-by-step explanation:
y is the total cost of x gallons of gasoline at $2.50/gallon.
a. The total cost of one car wash ($23 each) plus x gallons of gas is:
<u>a. y = $3 + $2.50x</u>
<u></u>
b. The cost of a car wash and 8 gallons (x=8) is:
b. y = $3 + $2.50*(8)
y = $3 + $20
<u>y = $23</u>
I think the right answer is C.
Should be a i guess , because the difference between (3,2) and (3,7) is (0,5) so it should be for (-2,2)