Answer
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Step-by-step explanation:
Answer:
.5 and .5, .75 and .25, ect
Answer:
The length of the pencils is 4.1 inches and for the crayons 1.5 inches
Step-by-step explanation:
We can solve by means of a 2x2 system of equations, we have to:
let "x" be the length of the pencils
let "y" be the length of the crayons
4 * x + 3 * y = 20.9
5 * x + 4 * y = 26.5 => x = (26.5 - 4 * y) / 5
Replacing:
4 * (26.5 - 4 * y) / 5 + 3 * y = 20.9
21.2 - 3.2 * y + 3 * y = 20.9
-0.2 * y = 20.9 - 21.2
y = -0.3 / -0.2
y = 1.5
now for x:
x = (26.5 - 4 * 1.5) / 5
x = 4.1
This means that the length of the pencils is 4.1 inches and for the crayons 1.5 inches
Alrighty, first off you would move the 2y to the left side and change its sign and move the constant (2) to the other side and change its sign.
3y - 2y = 5x - 2
Next you would collect the like terms for y.
y = 5x - 2
And because you cannot do anything else with the problem that is the final answer: y = 5x - 2
Hope this helps! :)
