Thus the expression is 0.15x.
Given,
A reasonable tip for some is 15% of the subtotal.
We need to write an expression that would represent how much tip you should leave if x represented the subtotal.
<h3>How to write the percentage of a quantity?</h3>
Let the quantity be 100.
5% of 100 = 5/100 x 100 = 5
10% of 100 = 10/100 x 100 = 10
50% of 100 = 50/100 x 100 = 50
We have,
Subtotal = x
Tip = 15%
Write the expression for 15% of x
15% of x
= 15/100 x (x)
= 0.15x
Thus the expression is 0.15x.
Learn more about writing an expression that represents the total amount paid here:
brainly.com/question/18650503
#SPJ1
Answer:
pretty sure it's A. (4, -4)
The error rate has decreased after changing the painting process.
<u>Step-by-step explanation:</u>
Abdulla knows that 20 percent of the parts have an error in their painting. After suggesting changes in painting process, he wants to know whether the error rate has changed.
Number of parts in the random sample=400400400
Number of parts that had an error=606060
We have to determine what percentage of 400400400 is 606060
After changing the painting process 0.15% of parts have error.
The previous percentage was 20.Hence the error rate has clearly changed.
Answer: 318
Step-by-step explanation:
7 to the 3rd power is 343, 343 minus 25 is 318