Question

PLS HELP CAN SOMEONE ANSWER B AND C!!! I NEED THE GRAPHS!!! 2. The restaurant bill you and your friend received was not itemized. You ordered 2 drink refills and the egg

breakfast, for a total of $8.40. Your friend ordered 3 refills and the egg breakfast for $9.35.
(a) Write a system of equations for the situation User for the amount charged for a refill and b for the
amount charged for the egg breakfast.
(b) Graph the equations in the system
(c) Use your graph to estimate how much each item cost.
Answer:

Answer 1

(a) The system of equations is:

2r + b = 8.40

3r + b = 9.35

(b) The graph is attached down

(c) By using the graph

The cost of the refill is $0.95

The cost of the egg breakfast is $6.5

Explanation:

Let r is the amount charged for a refill and b for the amount charged for the egg breakfast

∵ r is the amount charged for a refill

∵ b is the amount charged for the egg breakfast

∵ You ordered 2 drink refills and the egg breakfast, for a total of $8.40

∴ 2r + b = 8.40 ⇒ (1)

∵ Your friend ordered 3 refills and the egg breakfast for $9.35

∴ 3r + b = 9.35 ⇒ (2)

(a) The system of equations is:

2r + b = 8.40

3r + b = 9.35

(b) The graph is attached down

From the graph

The red line represents equation (1)

The blue line represents equation (2)

The two lines intersected at point (0.95, 6.5)

(c) By using the graph

The cost of the refill is $0.95

The cost of the egg breakfast is $6.5