Answer:
a) only half of the essential nutrients provide energy
Select the correct answer.
Which of the following foods contains mainly proteins?
A.Cereal
B.Peanuts
C.Apples
D.Crackers
Answer:
A bowl of cereal has about 8g of protein
or mental tension.
Stress is defined as a physical, chemical, emotional factor that causes bodily
True
False
How is table tennis different from other racquet sports?
A person who shows low levels of oxygen in their system most likely deals with which of the following conditions? Anemia, Asthma, Diabetes, or Pancreas Injury?
Answer: Asthma
Explanation: When you have asthma its hard to breathe you can't get oxygen into your lungs.
Gunther is making 100 mL of an antibiotic cream that is 15% antibiotic. He is using 18% and 10% creams. What is the ratio of the 18% cream in the final mixture?
Answer:
The ratio of the 18% cream in the final mixture is 1:1.6
Explanation:
Let the amount of the 18% cream be x and that of the 10% cream be y
x + y = 100••••••(i)
18% = 18/100 = 0.18
10% = 10/100 = 0.1
0.18(x) + 0.1y = 0.15(100)
0.18x + 0.1y = 15 •••••(ii)
from equation i, y = 100-x
Substitute this into i
0.18x + 0.1(100-x) = 15
0.18x + 10 - 0.1x = 15
0.18x - 0.1x = 15-10
0.08x = 5
x = 5/0.08
x = 62.5 mL
So, the ratio of the 18% cream to the final mixture will be;
62.5:100
= 62.5/100 = 2.5/4 = 1:1.6