6x - 12 = 8x + 14
2x = - 26
x = - 13
Because 12 + 3 is not equal to 16...
Answer:
8 maths tests
Step-by-step explanation:
Given data
We are told that in 1/4 hour that is 0.25hour (15 mins) She grades 1 math test
our aim is to find how many maths test she grade in 3 hours (120min)
Hence
in 15 mins she does 1 grading
in 120 mins she does x
cross multiply
15x= 120
divide both sides by 15
x= 120/15
x= 8 maths test
Hence in 2 hours, she can grade 8 maths tests
1/8 is a fraction to represent 12.5%
We know that Tyson wrote this expression to describe the total amount of points he won in both rounds of a game.
The expression is f+15. Let variable f represent points.
The correct answer is B. Tyson doesn't know how many points he earned in the first round. He knows he earned a total of 15 points in the whole game.