Step-by-step explanation:
For the point (5,8) to be a solution to the equations, when you insert x=5 and y=8 , they have to equal to the given values
substituting (5,8) into 4x+y
4(5)+8
=20+8
=28
substituting(5,8) into x-y=3
5-8
= -3
Answer:
B
Step-by-step explanation:
Start by breaking down the equation
-1/2 x 10 = -5
-1/2x1/4=-1/4
Then combine your answer
-5=1/8
In other words, you know that 50 percent of a number is 34 and you want to know what that initial number is.
To solve this problem you multiply 34 by 100 and then divide the total by 50 as follows:
(34 x 100) / 50
When we put that into our calculator, we get the following answer:
68
