Answer: Associative Property
Step-by-step explanation:
Variable: a symbol for a number you don’t know yet
inequality: 60=22+8x
Answer:
-6x+26
Step-by-step explanation:
6x+21-12x+5
-6x+26
Explanation:
Kadisha's method works because 15% is 3 times 5%, and both amounts are computed on the amount of the bill before tax is added.
Using proportions, it is found that the federal tax rate is of 10%.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The tax rate is the <u>proportion that $17.50 is of $175</u>, hence:
r = 17.50/175 = 0.1 = 10%.
The federal tax rate is of 10%.
More can be learned about proportions at brainly.com/question/24372153
#SPJ1