Each friend gets half of a oatmeal square
Step-by-step explanation:
An equation is formed when two equal expressions. The cost per pound of wheat flour is $0.55 and the cost of per pound of rye flour is $0.55.
<h3>What is an equation?</h3>
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Let the cost of a pound of wheat flour be x and the cost of a pound of rye flour be y.
A baker purchased 13 lb of wheat flour and 14 lb of rye flour for a total cost of $14.85.
13x + 14y = $14.85
x = (14.85-14y)/13
A second purchase, at the same prices, included 15 lb of wheat flour and 12 lb of rye flour.
15x + 12y = $14.85
Substitute the value of x from the above equation and solve for y,
![\dfrac{15(14.85-14y)}{13} + 12y = 14.85\\\\222.75-210y+156y = 193.05\\\\y = 0.55](https://tex.z-dn.net/?f=%5Cdfrac%7B15%2814.85-14y%29%7D%7B13%7D%20%2B%2012y%20%3D%2014.85%5C%5C%5C%5C222.75-210y%2B156y%20%3D%20193.05%5C%5C%5C%5Cy%20%3D%200.55)
Substitute the value of y in any one of the equations formed,
13x + 14(0.55) = 14.85
13x = 7.15
x = 0.55
Hence, the cost per pound of wheat flour is $0.55 and the cost of per pound of rye flour is $0.55.
Learn more about Equation:
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Answer:
Step-by-step explanation:
1. A + B
2. 9 + u - 10
3. m - 2 / 2
<span>9x − 2 = 4(x + 3)
Use PEMDAS
9x - 2 = 4(x + 3)
9x - 2 = 4x + 12
add 2 to both sides
9x = 4x + 14
subtract 4x from both sides
5x = 14
divide both sides by 5
x = 14/5
x = 2 4/5
Hope this helps!
</span>
Answer:
The answer is: y = -3x + 10
Step-by-step explanation:
Given point: (4, -2)
Given slope: m = -3
Use the point slope form of the equation and substitute:
y - y1 = m(x - x1)
y - (-2) = -3(x - 4)
y + 2 = -3x + 12
y = -3x + 10
Proof:
f(4) = -3(4) + 10
f(4) = -12 + 10
= -2, giving the point (4, -2)
Hope this helps! Have an Awesome Day!! :-)