1.) Write the slope-intercept form of the equation for the line.
1 answer:
You might be interested in
A nickel is equal to 5 cents or 0.05 dollars.
A quarter is equal to 25 cents or 0.25 dollars.
Let number of nickels be = n
Let number of quarters be = q
...........(1)
As it is given, there are 3 more nickels than quarters so equation becomes,
................(2)
Plug in the value of 'n' from (2) in (1)
=
As we get,
Hence, there are 12 nickels and 9 quarters.
"5 times a sum of 12 and a number is 80" translates to the next equasion:
5 x (12+a) = 80
Now we just have to solve it to find the value of a.
The unknown number is 4.
D is the right answer.
5 x (12+a) = 80
Now we just have to solve it to find the value of a.
The unknown number is 4.
D is the right answer.