Let x = amount of appliances Jack sold
Let y = amount of appliances Dion sold.
We need to construct a system of equations to solve this problem
33 = x + y
y = 2x - 3.
Let's solve this system of equations by substitution.
33 = x + (2x - 3). Combine like terms.
33 = 3x - 3. Add 3 to both sides.
36 = 3x. Divide both sides by 3
12 = x. Plug this value into one of our original equations.
33 = 12 + y. Subtract 12 from both sides
y = 21
Jack sold 12 appliances and Dion sold 21 appliances.
Answer:
negative
Step-by-step explanation:
1/3 - 4/5
Get a common denominator of 15
1/3*5/5 = 5/15
4/5*3/3 = 12/15
5/15 - 12/15
-7/15
Answer:
y = 0,5 x + (-3)
Step-by-step explanation:
We can see from the graph that when y = -3, the line crosses y axis, therefore
y = ? x + (-3)
We can also spot that when x = 6, y = 0
// now mark ? sign as a variable k and put the given x and y values into the previous expression
y = k * x - 3
0 = k * 6 - 3
k * 6 = 3
k = 3/6
k = 0,5
Answer:
9.68
Step-by-step explanation:
it makes sense when u tink about ot