For this question, we use the Pythagorean theorem.

We know the lengths of the legs, a and b.


Now, let's solve for the hypotenuse, c.


Take the positive square root.

Hope this helps! :)
Answer:
The amount of water need to be added is 5 liters.
Step-by-step explanation:
Let's "x" be amount of water in (liters) added to 15 liters of 40% of sugar syrup.
Now find the amount of sugar syrup = 40% of 15
= 0.4 × 15
The amount of sugar syrup = 6 Liters
To dilute 30% we need to find amount of water to be added.
So,
30% of (15 + x) = 6
0.3 × (15 + x) = 6
4.5 + 0.3x = 6
0.3x = 6 - 4.5
0.3x = 1.5
Dividing both sides, by 0.3, we get
x = 5
So, the amount of water need to be added is 5 liters.
Answer:
it's option D.
Step-by-step explanation:
see attachment in case u need steps
The percent increase is 48.28
Step-by-step explanation:
Given,
Purchase price of used-droid = $2900
Selling price of used=droid = $4300
Profit = Selling price - purchase price
Profit = 4300-2900 = $1400
Percent increase = 

Rounding off to nearest hundredth;
Percent increase = 48.28%
The percent increase is 48.28
Keywords: percentage, subtraction
Learn more about percentages at:
#LearnwithBrainly