Answer:
=25x-7
Step-by-step explanation:
Answer:
15.78 %
Step-by-step explanation:
It is given that,
Miguel made 80 on his Math test. He made 95 in last week's Math test.
We need to find the percent change on his scores. It can be calculated as follows :

So, there is a percent change of 15.78%.
Answer:
6
Step-by-step explanation:
Let the positive number be

The expression is

⇒ expanding the bracket gives,

⇒ rearranging to equate one side to zero

⇒ Dividing each term by 7 to simplify

⇒ Factorising gives


and

Hence, the first number is -5 and the second number is 3