X = 4y
3x - y = 70
substitute the x in the second equation with the other half of the first equation.
3(4y) - y = 70
12y - y = 70
11y = 70
y = 6.36 repeating, or 6 4/11
now use this to solve first equation
x = 4 (6 4/11)
x = 25.45 repeating
done
Answer:
I think its something like: Money Leftover = 125 - (price of one shirt * 5)
Step-by-step explanation:
just use variables in the place of "price of one shirt" and "Money Leftover".
multiplying the price of one shirt by five since she buys 5 of the same shirt and subtracting that value from her budget will leave you with the amount of money she had left after the purchase.
To do this we need to rewrite the equation in terms of y
4y=12-3x
y=3-3x/4
Therefore the gradient is -3/4
Answer:
y = 
Step-by-step explanation:
We are given the point (3, 10).
The second point is 2 on the x-axis and -7 on the y-axis. So our second point is: (3 + 2, 10 - 7) which is (5, 3).
Our formula for slope is m = 
= 
So, our equation would be 
= 
Using the standard formula of a line, y = mx + b, we can substitute for the slope, m.
y = 
+ b
Now, we can substitute a point on the line to determine the y-intercept:
Using the point (3, 10),
10 = 
+ b
b = 10 + 
b = 
So our full equation is: y =
Answer:
10,4,0,7,10
Step-by-step explanation:
|-10|=10
|-4|=4
|0|=0
|7|=7
|10|=10
