Answer:
1)Solving the expression we get
2) solving the equation we get
Step-by-step explanation:
We need to solve the expressions:
1)
Solving
First solving the brackets
Simplifying
Adding 4x on both sides
Switching the sides
Divide both sides by 3
So, Solving the expression we get
2)
Solving:
Adding 6.1 on both sides
Adding 2.4x on both sides
Divide both sides by 6
So, solving the equation we get
Answer:
The graph will be the one with a y-intercept of 3. That rises goes 3 up the y-axis and over 4 on the x-axis.
Step-by-step explanation:
y = mx + b is the slope intercept form where m is the slope and b is the y- intercept.
X = soft tacos
y = double deckers
Dory:
3x + 3y = 11.25
Nemo:
4x + 2y = 10.00
---Now to solve for x and y---
---We find LCM of either x or y then make them cancel each other---
Dory multiply by 2:
6x + 6y = 22.50
Nemo multiply by 3:
12x + 6y = 30.00
--eliminate y---
Nemo subtract Dory:
6x = 7.50
Therefore x = 7.50 <em />÷ 6 = 1.25
---Now substitute x = 1.25 in either equation.---
Dory:
3.75 + 3y = 11.25
Therefore 3y = 11.25 - 3.75
therefore 3y = 7.50
there fore y = 2.50
y = 2.50 , x = 1.25
Sorry, that this is so long, I hope you understand. This is called simultaneous equations, you can read up on it.
6 X 89 =6 x (80 + 9) = (6 x 80)+ (6x9)=480+54=534