Answer:
h = √91 cm
Step-by-step explanation:
Apply pythagorean theorem, a² + b² ° c².
Where,
a = ½(6) = 3 cm
b = h
c = 10 cm
Plug in the values
3² + h² = 10²
9 + h² = 100
9 + h² - 9 = 100 - 9
h² = 91
h = √91 cm
Answer:

Step-by-step explanation:

Step-by-step explanation:
If x = the amount of 12% and y = the amount of 20%, then x + y = 80
Since we need 80 grams of 15%, 80(.15) = 12.
We are given that .12x + .20y = 12.
We can solve the first equation for x or y. Let's do x.
x = 80 - y
.12(80 - y) + .20y = 12
9.6 - .12y + .20y = 12
.08y = 2.4
y = 30
x = 80 - 30 = 50
This question is not correctly written
Correct question
Noah drank 4/5 liter of water Monday before going jogging. He drank 2/3 liter of water after his jog. How much water did Noah drink altogether? Write your answer as a mixed number.
Answer:

Step-by-step explanation:
Noah drank 4/5 liter of water Monday before going jogging. He drank 2/3 liter of water after his jog.
To find the total liters of water he drank, we should add up the liter of water he drank on Monday before going jogging and liter of water after his jog.
4/5 + 2/3
Find the Lowest Common Multiple for 5 and 3 , which is 15.
= [(4×3) + (2×5)] /15
= 12 + 10/ 15
= 22/15
As a mixed Fraction, the answer
= 