Set variables for the quantities we want to find. Let x = number of applesLet y = number of oranges Next, we use these variables to write equations that describes the whole story. Since the total price is $7.75 and each type of fruit has their own price, we can say 0.40x + 0.35y = 7.55 The other equation will represent the total number of fruits bought all together, as Mark mentioned. Once you have those equations, you solve the system using substitution and elimination methods to solve for the variables x and y.
the answer is 20 because the lowest number they can all mulitply to is 20
Yo sup??
x+y=4 -----1
x-y=6 ----2
adding equation 1 and 2 we get
2x=10
x=5
from equation 1 we get
5+y=4
y=-1
Since a definite value of x and y exists therefore the set of equations are consistent.
Hope this helps.
8u+3<19 subtract 3 from both sides
8u<16 divide both sides by 8
u<2 so
-9 is in the solution set u=(-oo, 2)
