The final price is the cost plus the tax.
Since we know the tax and a percent, we can write this as
T = C(1+r)
T = what Graham paid = $87.45
C = cost before tax
r = tax rate expressed as a decimal = .40
Plugging in what we know
87.45 = C (1+.4)
87.45 = C(1.4)
Divide both sides by 1.4
C = $62.46
Answer:
.
Step-by-step explanation:
To find .
First, calculate the corresponding indefinite integral:
Integrate term by term:
Apply the constant rule
Apply the constant multiple rule
Apply the power rule
Therefore,
According to the Fundamental Theorem of Calculus, , so just evaluate the integral at the endpoints, and that's the answer.
Hello,
We know that patallel lines have the same slope, so we have to find the slope of that line and that is the answer:
The general formula of the line is: y=mx+b
where: m= slope
For example, in the line: y=2x+3, the slope is: m=2
So you have to put the equation in that form, and you'll have the answer there in front of you. I'm going to give you two options, so you can check your work:
Answer: m=-3/2 or m=-4/3
Answer:
what is that
Step-by-step explanation:
i don't understand the world
Answer:
This expression is not equivalent to -9.
Step-by-step explanation:
Given the expression
Use distributive property to eliminate the brackets:
Use commutative property to rearrange the terms:
Hence, this expression is not equivalent to -9.