I have two methods, but I am not sure if they are the methods you are looking for.
Let's say the price of the bill is $10, and you need to add a 20% tip.
You can do:
10 · 0.20 = 2
$2 is the tip, so 10 + 2 = 12
your total price is $12.
Another way is:
10 · 1.20 = 12
The "1" in 1.20 keeps the 10, and the ".20" adds the tip.
I think there are other ways to do it but I do not remember, sorry
Answer:
$7.5 = 3 pounds
Step-by-step explanation:
1. If $5 is equal to 2 pounds of cherries, you want to find what 1 pound of cherries cost. You should divided 5 by 2 and 2 by 2 to find what 1 pound of cherries cot.
2. That means that 1 pound of cherries cost $2.5.
3. Now we want to find how much money 3 pounds cost, so you should multiply the 2.5 and the 1 by 3.
4. Now that gets you to $7.5 for 3 pounds of cherries.s
Answer: 9/4
Step-by-step explanation: Think of
as
.
Now, we can change 4⁻¹ to 4¹ by moving it to the denominator and
we can change 9⁻¹ to 9¹ by moving it to the numerator.
So we have 9¹/4¹ which simplifies to 9/4.
Answer:
Lines a) and c) are perpendicular to each other.
Step-by-step explanation:
I'd suggest you draw a coordinate plane: just draw the x- and y-axes. Notice how these axes are PERPENDICULAR to one another.
Now note that the line y = 5 is parallel to the x-axis and x = 2 is parallel to the y-axis. That's all that's necessary for us to claim that x = 2 and y = 5 are perpendicular to each other.
y = (1/8)x and y = 8x - 5 are neither parallel to each other or perpendicular. If their slopes were negative reciprocals, e. g., 8 and -1/8, then the lines would be perpendicular (not true here).
This is a diffficult question was there a chart