I will show you how to solve by elimination. You have two equations. The goal of this method is to cancel out one of the variables.
3y=x-1
x-2y=2 ----> 2=x-2y (just flipping it around visually)
If we align the two equation and subtract them...
3y=x-1
-(2=x-2y) "x is canceled out"
---------------
3y-2=-1+2y "one variable equation now"
y=1
Plug in 1 for y into any equation to get corresponding x value.
3y=x-1
3(1)=x-1
x=4
Answer: (4,1)
Let the number of yellow cubes be x
Yellow Cubes = x
Blue Cubes = 3x
Green = 5 (3x) = 15x
Ratio : Yellow : Blue : Green = 1 : 3 : 15
P(Yellow) = 1/19
Answer: 1/19
The yellow squad coordinate is (-3,2)
Answer:
$2
Step-by-step explanation:
x = daylily
y = geranium
1x + 5y = 22
13x + 1y = 30
Multiply second equation by 5 and subtract the two equations.
1x + 5y = 22
- (65x + 5y = 150)
-64x = -128
x = 2
So one daylily costs 2 dollars