Step-by-step explanation:
it may help you to understand
Rational....because it can be written as a ratio
Answer:
D.3.5
Step-by-step explanation:
4x+2y=10(given)
2x+y=5
y=5-2x-----(1)
y=2x-1------(2)(given)
Since the left side of the equations are the the same,
5-2x=2x-1
4x=6
x=1.5
Sub x=1.5 into eq(1),
y = 5-2(1.5) = 5-3 = 2
so, x+y = 1.5+2 = 3.5
0.65 is equivalent to 65%.
0.65 of 120 is the same as
0.65 x 120.
0.65 x 120 = 78.
So, 78 students ate pizza.