The table shows the total number of hamburgers and hot dogs sold at a food stand at a local fair on two separate days. It also shows the dollar amount taken in each day. Hamburgers Hot Dogs Total Day 1 200 150 $1,450 Day 2 200 250 $1,750 What is the cost of a hamburger and the cost of a hot dog? Enter your answers in the boxes. Hamburger: $ Hot dog: $
Mathematics · High School · Tue Nov 03 2020
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Hamburgers and hot dogs are sold at a food stand at a local fair on two separate days.
On day 1, 200 hamburgers and 150 hotdogs were sold and a total of $1450 was taken in for all.
On day 2, 200 hamburgers and 250 hotdogs were sold and a total of $1750 was taken in for all.
No, we have to find the cost of the hamburger and hotdog.
So let's form an equation with the given data:
Let's assume hamburger= x and hotdog= y
Day 1: 200x + 150y = 1450 …eqn¹
Day 2: 200x + 250y = 1750 …eqn²
Let's take x's value from eqn¹
200x + 150y = 1450
200x = 1450 -150y
x = (1450 - 150y)/200
∴ Let's put this in eqn²
200x + 250y = 1750
200[(1450- 150y)/200] + 250y = 1750
(1450- 150y) + 250y = 1750
250y - 150y = 1750-1450
100y = 300
y = 300/100
y = 3
Now put y=3 in eqn¹
200x + 150y = 1450
200x + 150(3) = 1450
200x + 450 = 1450
200x =1450 -450
200x = 1000
x = 1000/200
x = 5
So the cost of a hamburger is $5 and the cost of hotdog is $3.