Answer:
105.84 cm
Step-by-step explanation:
A = 1/2 bh
A = 1/2 (16.8) 12.6
A = 1/2 (211.68)
A = 105.84 cm
hope it helps :)
mark brainliest!!
Answer:
7.2 liters
Step-by-step explanation:
Find how many liters of the solution is bleach:
14% of 18 liters
= 0.14 × 18
= 2.52 liters
If the amount of bleach in the solution should be 10% then:
⇒ 10% = 2.52 liters
⇒ 100% = 2.52 × 10 = 25.2 liters
To find the amount of water that should be added, subtract the original volume of solution from the new volume of solution:
⇒ 25.2 - 18 = 7.2 liters
Therefore, 7.2 liters of water should be added to 18 liters of a 14% bleach solution so that the resulting solution contains only 10% bleach.
Answer:
plan a is cheaper
Step-by-step explanation:
Answer:
n=-7
Step-by-step explanation:
-n+3=10
-3 -3
-n=7
-n/-1 7/-1
n=-7
