Answer:
8
Step-by-step explanation:
multiply 4/5 by 10
You can use a number line to compare values by on the line say that 4 is before 5 so it is saying that 4 is less than 5.
Let's say you had the ratio 14:21
The GCF of the two values (14 and 21) is 7
14 = 7*2
21 = 7*3
We can divide both parts of the ratio by the GCF 7 to get
14/7 = 2
21/7 = 3
Meaning the original ratio 14:21 fully reduces to 2:3
So in short, we use the GCF to help fully reduce any ratio.
This also applies to fractions as well. We could have something like 9/33 fully reduce to 3/11 after dividing both parts (9 and 33) by the GCF 3.
Answer: $64
80(0.20) = 16
80 - 16 = 64
Since it’s a discount, after we multiplied it with 20% (0.20), we need to take the product and subtract it from the original price.
You break even if you spend exactly as much as you gain. In other words, if the cost and the revenue are the same:
Subtract 0.25 from both sides:
Divide both sides by 1.25:
So, they must sell 116 computers to break even. If they sell less, they'll lose money. If they sell more, they'll start making profit.
