Answer:
500.
Step-by-step explanation:
Remember 4 x 5.
As 4 x 5 = 20 and if 4 x 50 = 200 then 4 x 500 would equal 2000.
( Side note: If you're doing 1000 or 2000 you can start with adding zeros then, but do not mix up them with some problems that have a zero in the product: Study this: (What equals 1000?) Student 1 says 2 x 5000 and Student 2 says 2 x 500. Which one is correct?)
If we solve the left side of the given equation,
1/a + 1/b = 1/c
we get an answer of,
b+a / ab = 1/c
Since ab = c, we can conclude that b + a is 1. The average of these two numbers is equal to there sum divided by 2. The answer is therefore equal to 0.5.
First, multiply $3 by 4 to get $12 spent on cookies. Then, you multiply $12 by 2 to know that the pies cost $24. You then divide the $24 by 3 to get $6 per pie. Meaning, each pie had cost $6. You add the $12 and $24 together to get $36. Finally, you subtract $36 from $40 to know that she only has $4 left.
Answer:
fx-6x+15
Step-by-step explanation:
fx-(6x-6)+9
fx-6x+6+9
fx-6x+(6+9)
fx-6x+15
9/12= 3/4 (divide the numerator and denominator by the gcf, which is 3)
Final answer: 10 3/4
