© MP.4 Model with Math
Aaron wraps presents in a
store. In one hour, he wraps
8 games and one console.
How much wrapping paper
does Aaron use? Use
Exercises 1-3 to answer
the question.
gaming console takes 4.1/3
feet of wrapping paper
game takes 1.2/3 feet of
wrapping paper
1. Draw bar diagrams and
write equations to
represent
the problem

$9.41

step-by-step explanation:

(3x-8) or (3x+8)

step-by-step explanation:

$79500

step-by-step explanation:

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.