A principal spent $7 on c calculators for her school. Which expression shows the total cost of the calculators?
1 answer:
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Stan's, Mark's and Wayne's ages are 35 , 36 and 37 years respectively.
<em><u>Explanation</u></em>
Stan's, Mark's and Wayne's ages are <u>consecutive whole numbers</u> and Stan is the youngest and Wayne is the oldest.
So, lets assume that Stan's, Mark's and Wayne's ages are and
Given that, the sum of their ages is 108. So, the equation will be.....
So, Stan's age is 35 years , Mark's age is (35+1)= 36 years and Wayne's age is (35+2)= 37 years.
<h3><u>Answer:</u></h3>
- The value of x is 17.
<u>We know that the lines are parallel because it is given that:</u>
- a ∥ b
<u>Now, let's form an equation.</u>
- => 2x + 5 + 8x + 5 = 180
<u>Let's solve!</u>
- => 10x + 10 = 180
- => 10x = 170
- => x = 17
Hence, the value of x is 17.