Marcelina uses a blend of white corn and yellow corn to make tortilla chips at her restaurant. She needs to buy
50
 
kg
50kg50, start text, k, g, end text of corn in total for her next order. White corn costs
$
0.30
$0.30dollar sign, 0, point, 30 per kilogram, yellow corn costs
$
0.15
$0.15dollar sign, 0, point, 15 per kilogram, and she wants to spend
$
12
$12dollar sign, 12 total.
Here's a graph that shows a system of equations for this scenario where
x
xx is the amount of white corn she buys and
y
yy is the amount of yellow corn she buys.
A graph with two lines and a point. Line A is labeled 0.30 times x plus 0.15 times y equals 12. Line B is labeled x plus y equals 50. Point E is on the intersection of line A and line B.
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50
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10
10
20
20
30
30
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40
50
50
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y
(yellow)
y (yellow)
x
(white)
x (white)
line
a
:
0.30
x
+
0.15
y
=
12
line a:0.30x+0.15y=12
line
b
:
x
+
y
=
50
line b:x+y=50
E
E