A middle school band is selling candy bars and nuts to raise money for a field trip. Each candy bar, b, costs $1.50 and each box of nuts, n, costs $4.00. If they raised $418, what expression shows the portion that came from candy bar sales?

1.5b = 418 - 4n (all in dollars)

Step-by-step explanation:

Let b represent the number of candy bars sold and n the number of box of nuts sold.

Given that each;

Candy bar costs $1.50

box of nut $4.00

Amount raised from candy bars = $1.50 × b

Amount raised from box of nut = $4.00 × n

Total amount raised = $418

The equation for the total amount raised is;

1.50 × b + 4.00 × n = 418

1.5b + 4n = 418

The portion that came from candy bars is;

Making 1.5b the subject of formula;

1.5b = 418 - 4n

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.

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation: