Answer:
$17.64
Step-by-step explanation:
$15.50 and $5.50
with 20% off
and 5% sales tax.
take the 20% first.
(15.50 + 5.50) * ( 100 - 20) % = 21 *0.8 = $16.80
now add the tax
0.05 * 16.80 + 16.80 = $17.64
The easiest way is to just solve the equation.
4x - 4 = -4x + 60
4x + 4x = 4 + 60
8x = 64
x = 8
A slower way to do this is to plug each of the numbers into the equation to see which makes the equation is true.
So for A.
4(8 - 1) = -4(8) + 60
4(7) = -32 + 60
28 = 28
Fortunately, this is true, so A is the answer and you don't have to try the other options.
199.53 is correct. Brainliest?
Using proportions, it is found that he must have fewer at bats than Player A, as the batting average is inverse proportional to the number of at bats, hence you friend is incorrect.
<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. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
The batting average is given by the division of the number of hits by the number of at bats. Player B has fewer hits but a greater batting average, which means that he must have fewer at bats than Player A, as the batting average is inverse proportional to the number of at bats, hence you friend is incorrect.
More can be learned about proportions at brainly.com/question/24372153
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