Substitute X or Y With 0 So It Would Be 3/5(0) +1/2y = 30
1/2y=30
Divide Get Y And Do The Same For X
Answer:
24 people in the history class.
Step-by-step explanation:
Let the total number of people in the class = x. I do this rather a long way because people often have trouble dealing with the division of fractions.
Equation
75/100 * x = 18 Multiply by 100
Solution
75x = 18*100
75x = 1800 Divide by 75
x = 1800/75
x = 24
There are 24 people in the class
So, 5 x (-3) + 7 = -15 + 7 = - 8 , but not 4;
Then, -3 is not a solution to 5x + 7 = 4;
Answer:
30
Step-by-step explanation:
