21 x 3.14 = 65.94 inches basically multiply by 3.14 there is another way to do it but I don’t know it. Hope this helps!
Answer:
Step-by-step explanation:
Add 1 to both sides:
Subtract 2r from both sides:
Divide both sides by 5:
Let's define,
X := Total minutes it takes to fill the plane (with fuel)
Then,
Solving it for X, we get
This means that the vehicle takes 1 h 2 min to fill the plane. If the fuelling finished at 10:35, it began at
9:33.
4 (points for an A) x 21 (As) = 84
3 (points for a B) x 24 (Bs) =72
2 (points for a C) x 15 (cs) = 30
84 + 72 + 30 = 186 (total points)
186 divided by 60 (total credits) = 3.1
3.1 GPA
This is a question of direct proportionality. The mass of hemoglobin is expected to increase with increase in volume of the blood.
Therefore;
10 cm^3 of blood ---------- 1.2 g of hemoglobin
39 cm^3 of blood ---------- x g of hemoglobin
The,
x = (39*1.2)/10 = 4.68 g of hemoglobin.
That is, 39 cm^3 of blood contains 4.68 grams of hemoglobin.