1-2: MathXL for School: Practice & Problem Solving
Part 3 of 3
0 Assignment is
Tavon has a gift card for $105 that loses $2.50 for each 30-day period it is not used. He has another gift card for $85 that loses $2 for each 30-day period it is not used
a. Write and solve an equation for the number of 30-day periods until the value of the gift cards will be equal
b. What will the value of each card be when they have equal value?
a. If x is the number of 30-day periods, then the equation 105-2.50x=85-2x can be used to find the number of 30-day periods until the values of the gift cards will be equal
(Type an equation. Use integers or decimals for any numbers in the equation.)
The values of the gift cards will be equal after 40 30-day periods.
(Type a whole number)
b. When the gift cards have equal value, the value of each will be:
$