Answer:
11 79/80
Step-by-step explanation:
2+4+3+ 3/4+4/5+8/9
=9+ 3(5*9) +4(4*9) + 8(5*4)/4*5*9
=9 + 135+ 144+160/180
=9+ 439/180
=9+2 + 79/80
=11 79/80
Answer: hmm Im not sure.
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
Given
4c + d and c = 5, d = - 4, then substitute values into the expression
= (4 × 5) + (- 4) = 20 - 4 = 16
75 (your whole) / .55 (percentage) =41.25
Substitution method is used to solve the linear system of equations for one or more variables.
Consider the first equation y = 3x + 3 -----(1)
In equation (1) plug in y=x-1, we get
x -1 = 3x + 3
Add -3x on both side , we get
x-3x -1 = 3x-3x +3
-2x-1=0 + 3
Now add +1 on both sides, we get
-2x-1+1= 3+1
-2x + 0 =4
Now divide both side by -2
-2x/-2= 4/-2
X= -2
Now put x=-2 in the the second equation,
y=x-1
y=(-2)-1
y=-3
Solution(-2,-3)