Answer:
y = 6 so
2x + 3y = 36y is equal to:
2x + 3*6 = 36*6
-> 2x + 18 = 216
We must now move 18 to the other side of the equation. As we do that, we also change it's sign to negative 18:
2x = 216 - 18
We simplify this
2x = 198
Now, that we got to this point, we know that 2x is equal to 198. To find x we must divide the both sides of the equation by two:
2x/2 = 198/2
And we get that
x = 99
Step-by-step explanation:
Answer:
x>4
Step-by-step explanation:
16+5x>x+32
5x>x+16
4x>16
x>4
Answer:
$280
Step-by-step explanation:
35%=$98 (to find 1%: 98/35) 1%=$2.8 100%=$280
Answer:
Mr. Perkins changed the oil in his car. He bought. 6 liters of oil. He put 4,500 ml in his car.
Step-by-step explanation:
Let the two numbers be x and y.
The difference between the numbers is 4. Therefore
x - y = 4 (1)
The sum of one-half of each number is 18, therefore
x/2 + y/ 2 = 18
x + y = 36 (2)
Add equations (1) and (2).
(x - y) + (x + y) = 4 + 36
2x = 40
x = 20
From (2), obtain
y = 36 - x = 36 - 20 = 16.
Answer: The two numbers are 16 and 20.
