x+ y = 96 → y = 96 - x (1)
And the price per plain cake * the number he sold + price of the decorated cake * the number he sold = total sales
So
8x + 12y = 800 (2)
Subbing (1) into (2), we have that
8x + 12 (96 - x) = 800 simplify
8x + 1152 - 12x = 800
-4x + 1152 = 800 subtract 1152 from both sides
-4x = -352 divide both sides by -4
x = 88 = the number of plain cakes he sold
And 96 - x = 96 - 88 = 8 = the number of decorated cakes he sold
If you add those two numbers together you get 67. 67-23=44 :)
Step-by-step explanation:
for number 8. The slope is -3 because the standard form equation is y=mx+c. And we know that m represents your slope.
Hence why it is -3.
For number 10. The slope is 0. I Forgot to write that on the pic
:)
Sam's mom bought 2 apples. The next day, she buys 5x as many apples as she bought the first day. Within a week, Sam's family has eaten 5 of the total amount of apples bought. How many apples remain?
Answer:
this means that she had spent 196.44 dollars
Step-by-step explanation:
109.32 (started off with)
-87.12(how much she ended up with)
we know that she went over cause she ended up with a negative so you just add how much she went over and how much she had orgiginally had
