Solve: 2.40X=40 to find out how many cookies that cost $2.40 each can be bought with $40.
1 answer:
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Answer:
25
Step-by-step explanation:
<u>Formula</u>
Where M meters of granola makes B granola bars.
<u>Given:</u>
M = 2.5 meters
Now substitute that value in the formula and calculate.
Therefore, 2.5 meters of granola makes 25 granola bars.
B = 25
<u>The concept:</u>
We are given the equation:
Which can be simplified as:
Since any number to the power '0' is 1
x² - x must be equal to 0 for the given equation to be true
<u></u>
<u>Solving for x:</u>
x² - x = 0
x(x-1) = 0
now, we can divide both sides by either x OR x-1
So we will see what we get for either choice:
x = 0/(x-1) x-1 = 0/x
x = 0 x = 1
Hence, the value of x is either 0 or 1