Fran is three times as old as Nancy. In four years, she'll be twice as old as Nancy. How old is each now?
2 answers:
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Answer:
3rd option,
Step-by-step explanation:
To find out which option is correct, we can write the equation in point-slope form ourselves.
Use the point-slope formula to write the equation in point-slope form. Substitute the
,
, and
for real values.
Since represents the slope, substitute
in its place. Since
and
represent the x and y values of a point the line intersects, substitute the x and y values of (5,1) into the formula as well. Substitute 5 for
and 1 for
. This gives the following equation:
Given:
The price of a doll = $35
Sales tax = 6%
To find:
The tax amount that a customer will pay on one doll.
Solution:
The price of doll is $35 and the sales tax is 6%, so the tax amount on a doll is 6% of 35.
Therefore, the tax amount that a customer will pay on one doll is $2.1.