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2 years ago

Find 20% of 150 A. 20 B. 130 C. 120 D. 30

Mathematics

1 answer:

Ivan2 years ago

5 0

<h3>Calculate percentage of a number</h3>

For this, multiply 150 × .20 = 30

Therefore, 20% of 150 is 30.

So, the correct option is "D".

See about percentages at: brainly.com/question/24209747

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Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per month, whe

Len [333]

Answer:

$S(t) = -18t^\frac{5}{3}+2440$

Company will take approximately 14 months

Step-by-step explanation:

Given function that shows the change rate of computers,

$S'(t)=-30 t^{\frac{2}{3}}$

Where,

t = number of months

On integrating,

$\int S'(t) = -30\int t^{\frac{2}{3}} dt$

$S(t) = -30(\frac{t^{\frac{2}{3}+1}}{\frac{2}{3}+1})+C$

$S(t) = -30 (\frac{t^{\frac{2+3}{3}}}{\frac{2+3}{3}})+C$

$S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C$

$S(t) = -30(\frac{3t^\frac{5}{3}}{5})+C$

$S(t) =-18t^\frac{5}{3}+C$

According to the question,

S(0) = 2,440,

$\implies -18(0)^\frac{5}{3}+C=2440\implies C = 2440$

Hence, the required function,

$S(t) = -18t^\frac{5}{3}+2440$

If S(t) = 1,000,

$-18t^\frac{5}{3}+2440=1000$

$-18t^\frac{5}{3}=-1440$

$t^\frac{5}{3}=80$

$t = (80)^\frac{3}{5}\approx 13.86$

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3 years ago

Help me out don’t really get this stuff that much

ioda

Answer:

Step-by-step explanation:

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Every number other than 0 has a multiplicative inverse.

Gala2k [10]

Answer:

A multiplicative inverse of a real number x is a real number y such that xy = 1. ... ((NOT GOOGLING DEF))

Step-by-step explanation:

"For every real number x, if x 0, then there is a real number y such that xy = 1.”

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lara [203]

Answer:

Step-by-step explanation:

its 92 because its is a 2-digit number and is considered composite because its divisible by 2, 4, 23 and 46

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3 years ago