Answer:
y = 2.1x +5, 21 miles
Step-by-step explanation:
We will denote miles as "x"
Since she tipped the driver $5, that is a flat rate and that will be our y-intercept. Since it costs $2.10 per mile, we need to multiply that number by the number of miles
So our equation will be y = 2.1x +5
In order to figure out how many miles Ann lives from the airport, we need to substitute y for her grand total that she was charged
This gives us 49.10 = 2.10x + 5
First we need to subtract 5 from each side to get 44.10 = 2.10x
We then need to divide both sides by 2.10 to get 21 = x
Ann drove 21 miles
Subtract 9x from 23x yields 14x. This was done by subtracting algebraically the variables.
<em>Question:</em>
<em>If one basket contains five bottles each weighing 7 1/4 and the other basket has six apples each weighing 6 1/2 ounces. Which basket is heavier and by how much
?</em>
Answer:
The basket of bottles weighs more than the basket of apples by
ounces
Step-by-step explanation:
Given




Required
Determine which basket is heavy
and by how much?
First, we need the total weight of each basket.
For the bottles' basket






For the bottles' basket






By comparing both total weights, 
Hence:
The basket of bottles weighs more than the basket of apples
Calculating the difference:





Hence:
It weighs more by
ounces