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Pachacha [2.7K]
3 years ago
7

What is 15 percent of 20

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
8 0

Answer:

3

Step-by-step explanation:

20 times 15%

\/

20 times 0.15

\/

3

Why can we do this? When a percentage is divided by 100 it becomes a decimal that can be multipled, divided, etc.

UkoKoshka [18]3 years ago
5 0

Answer:

15% of 20=3

Step-by-step explanation:

0.15*20=3

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Use Pascal's Triangle to determine the second term of the expansion of (x - 2)^5
goldfiish [28.3K]

Pascal's triangle up to the 5th iteration is

\begin{array}{cccccc}1\\1&1\\1&2&1\\1&3&3&1\\1&4&6&4&1\\1&5&10&10&5&1\end{array}

This tells us

(x-2)^5=\boxed{1}x^5(-2)^0+\boxed{5}x^4(-2)^1+\boxed{10}x^3(-2)^2+\boxed{10}x^2(-2)^3+\boxed{5}x^1(-2)^4+\boxed{1}x^0(-2)^5

so the second term in the expansion is

5x^4(-2)^1=\boxed{-10x^4}

8 0
3 years ago
PLEASE HELPPP i would really appreciate it :)
qaws [65]

Answer:

Y = - 12.55X1 + 276.52

Step-by-step explanation:

Given the data:

Age of child :(X) : 4, 6, 10, 13, 14, 17

Time (seconds) (Y) : 230, 205, 132, 119, 108, 62

Using technology, the linear regression equation obtained using the data Given is :

Y = - 12.55X1 + 276.52

Where :

Slope = - 12.55

Intercept = 276.52

This also indicates that a negative slope is present and hence a negative relationship between age of Child and time in seconds.

3 0
2 years ago
Rally sold 30 flower baskets at a market. She purchased 30 baskets for $142.65, 185 yards of ribbon for $.07 per yard, and $252.
rosijanka [135]

Answer:

She spent 142.65 for baskets, 252.50 for flowers and 185 * 0.07 or 12.95 for ribbons for a total outlay of 408.10. Since she made 30 baskets, that is 408.10/30 = 13.60 1/3 per basket.

If she sold all 30 for 25.99 each, that is 779.70 for a profit of 361.60

Step-by-step explanation:

:)

7 0
3 years ago
Help me .......................................
SpyIntel [72]

Answer:

X^3 AS THE NUMERATOR 8 AS THE DENOMINATOR

Step-by-step explanation:

6 0
3 years ago
Dan says he ran twice as far as Karim what possiblities for the distance they each could run
Lelechka [254]
If Karim ran one mile, Dan ran two miles.
If Karim ran three miles, Dan ran six miles.
5 0
3 years ago
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