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2 answers:
Answer:
D; y = x
Step-by-step explanation:
1. Slope-intercept form
The general formula of a line is;
y = mx + b
Where "m" is the slope, and "b" is the y-intercept.
2. Slope
The slope of a line is;
The slope of the given line is; . This is because the line goes up 4 units, and over to the right by 7 units.
3. Intercept
This line passes through the origin, meaning it has no y-intercept.
4. Putting it together
Substitute in the value found, into the general equation.
y - mx + b
m =
b = 0
Hence the equation of the line is;
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Answer:
Option D. Marcelina spends less that the intended amount of money and buy less than enough corn
Step-by-step explanation:
Let
x----> is the amount of white corn she buys
y ---> is the amount of yellow corn she buys
we know that
She needs to buy 50 kg of corn in total
so
----> equation A
She wants to spend $12 dollars total
so
----> equation B
The solution of the system of equations is the intersection point both graphs
The solution is the point (30,20)
That means
Marcelina needs to buy 30 kg of white corn and 20 kg of yellow corn
we have the ordered pair F(15.15)
That means
15 kg of white corn and 15 kg of yellow corn
therefore
Total kg of corn bought is
Total spend is
therefore
Marcelina spends less that the intended amount of money and buy less than enough corn