<em>d = 2r => r = d/2 = 15cm/2 = 7,5 cm</em>
<em />
<em>V = π·r² = 3,14·(7,5)² = 3,14·56,25 = 176,625 ≈ 176,6 cm³</em>
Step-by-step explanation:
1 kilogram (kg) = 1000 grams (g)
as "kilo" means 1000.
b = a × c / 1000
it is simple : we have "c" square meters. as we need to apply "a" grams per square meter, we need to multiply both numbers to know how many grams we need for that many square meters. hence a × c.
and to get kg, we need to divide this number of grams by 1000.
that's it.
Answer:
7 hours
Step-by-step explanation:
1/14 * 14 = 1 whole lawn
1/2 hours = 30 minutes
14 * 30 = 420 minutes to water entire lawn
420 minutes = 7 hours
Answer:
C.Another plane
Step-by-step explanation:
Answer:0.666666666666 or 2/3
Step-by-step explanation:
What you are doing here is actually pretty simple, since you have a variable (t) and you have its value (8/9) all that you have to do is place the value where your variables is in the equation. 8/9 x 3/4 = 0.666666666666 or 2/3! what you would do to get the final answer is multiply across, so, 3x8 =24 and 4x9 = 36, so far you're at 24/36 which you'd need to simplify to get 2/3!