Answer:
Step-by-step explanation:
2 1/5 is equivalent to 0.022. Yes, 0.0215 is less than 0.022.
This is clearer if you write the two values in a column:
0.0220 (larger than 0.0215)
0.0215 (smaller than 0.0220)
Answer:
x = 7
Step-by-step explanation:
Let x = the number. Then
"Triple a number" means 3x
"is the same as" means =
"double the number increased by 5" means 2x + 7
∴ 3x = 2x + 7
Subtract 2x from each side
x = 7
The answer is x = 7.
Check:
3 × 7 = 2 × 7 + 7
21 = 14 + 7
21 = 21
OK.
V=9 1/20, because when you multiply 4/5 by 4 and 1/4 by 5 to get a common denominator you get 21/20. You add the 3 and the 5, and add the one we got from the fractions and add the 1/20 to get 9 1/20
9514 1404 393
Answer:
Step-by-step explanation:
Consider a group of 1 dime and 2 nickels. The value of it is 0.20. The total value of all such groups is 3.20, so there must be ...
3.20/0.20 = 16 . . . . . groups of coins
That is, there are 16 dimes and 32 nickels.
I don't speak Romanian, but the closest translation for this suggests you're trying to compute

Integrate by parts:

where
u = ln(x)² ⇒ du = 2 ln(x)/x dx
dv = x³ dx ⇒ v = 1/4 x⁴

Integrate by parts again:

where
u' = ln(x) ⇒ du' = dx/x
dv' = x³ dx ⇒ v' = 1/4 x⁴

So, we have




