5(20) + 4y = 216
100 + 4y = 216
4y = 216 - 100
4y = 116
y = 116/4
y = 29.....so they sold 29 four-dollar yogurts + 20 five-dollar yogurts....for a total of 49 yogurts sold <==
Answer is 32k^5
Work: 32k^2+3
Basically what you have to do is substitute the variables for the values
-4+-9+5= -8
-2-3= -5
2= 2
6-4+1= 3
-9(-2+-4--3)= 27
Answer:
x = 18/5
Step-by-step explanation:
-5/6 x=-3
Multiply each side by -6/5
-6/5 *-5/6 x=-3*-6/5
x = 18/5
Let the balance = Y and the number of weeks = x
She takes out 15 per week, so multiply 15 by x ( the number of weeks) to get 15x.
You would then want to subtract that from the amount she started with in her account.
The equation becomes: Y = 150 - 15x
