Hi there!
Looks like a lot of work is going on here.
Let's start by solving this equation for the x.
Step 1) Add -20y to both sides.
Step 2) Divide both sides by 5.
Final Answer:
Now, let's solve for y.
Step 1) Add -5x to both sides.
Step 2) Divide both sides by 20.
Final Answer:
Hope this helps! :D
Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)
Think of x being the cost of a knife and y being the cost of a spoon.
x = 3y would show that a knife cost 3 times what a spoon does.
We know from the info that 12 knives and 9 spoons = 82.80. It could be written as 12x + 9y = 82.80
Substitute 3y from our formula into the equation for x.
12(3y) + 9y = 82.80 becomes 36y + 9y + 82.80 which becomes 45y = 82.80, then divide both sides by 45 to solve for y and you get 1.84
Going back to our original equation, x = 3y, we can substitute 1.84 for y and find that x = 5.52.
So we find a knife cost $5.52
The answer is C. 68/5 - 54/5i
Assuming that the apples are not tossed back into the bag after drawing them.
Total of 9 apples.
1st draw yell, 4/9
2nd draw yell, 3/8
3rd draw red, 5/7
4th draw red, 4/6
Answer:
Product is 6x³ - 37x² + 53x + 8
Step-by-step explanation: