Answer:
120x + $20 = $200
x = $1,5
Step-by-step explanation:
We need to find out the price of each candy bar we sold. Let's define x, our variable, as this price that we need to find out.
We know that we met the goal of raising $200 by selling candy bars and with the $20 donation. We need to have this in mind when we write the equation.
Therefore, if we multiply the 120 candy bars we sold by the unit price and we add the $20, it has to be equal to $200.
In math language, that is
120x + $20 = $200
Let's solve it to find out the x. First we subtract $20 from both sides:
120x + $20 - $20 = $200 - $20
120x = $180
Now we divide by 120:
120x/120 = $180/120
x = $1,5
We sold the candy bars for $1,5 each.
We can also interpret that we met the goal and exceed it. The calculation is the same but we need to change the equal sign with a greater sign, because the amount we raise was greater than $200. That is
120x + $20 > $200
With the same calculations, we will get
x > $1,5
That means that the candy bars were sold for more than $1,5 each.
Answer:
I believe the answer is B
Step-by-step explanation:
It can have a parameter of 60 if it is 3in wide and 27 in long.
We find this by looking at the factors of 81.
3 and 27 are factors and if using the formula given we see that length = 30-3 = 27.
Using these factors of 81, the parameter would be 27 + 27 + 3 + 3 which results in 60.
Answer:
If she invests x an y, then we have
x+y = 144800
.10x + .18y = 20000
Now just do that as a matrix equation.
Step-by-step explanation:
Look for patterns in the input and output.
For example
0-0
1- 2
2-4
3-6
So the pattern you see here is increase in 2 each time. So the pattern rule can be that you multiply the input by 2 to get the output.
