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2 years ago

What's the percent of change for 30 to 90

1 answer:

6 0

First of all, remember that 100% is one whole thing.

Then.look at the problem, and see that 90 is three times 30.

-- 90 is 300% of an entire 30 .

-- To go from 30 to 90, you have to increase the 30 by 200% of itself.

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How can you express 5 1/3 + (-7 2/3) as the sum of its integer and fractional parts

Yuliya22 [10]

Answer:

-7/3

Step-by-step explanation:

-7 2/3=-23/3

5 1/3=16/3

-----------------

16/3+(-23/3)

16/3-23/3

-7/3

6 0

2 years ago

Perform the operation. (9x2 + 6x – 7) + (-9x - 5) PLS HELP ASAP PLS

qaws [65]

Answer:

Step-by-step explanation:

(9x2 + 6x – 7) + (-9x - 5) = 21

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2 years ago

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20 The table shows the linear relationship between the balance of a student's

Pavlova-9 [17]

Answer:7

Step-by-step explanation:it’s 7

7 0

2 years ago

15/23 - 5/23 lets see who can solve

seraphim [82]

Answer:

10/23

Step-by-step explanation:

15/23 - 5/23 = 10/23(Ans)

7 0

2 years ago

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In a manufacturing plant that produces new computers, a 0.15 probability exists that a computer will be defective. if five compu

Sindrei [870]

The probability that all of them will be defective is 0.0000759375

Explanation

The general Binomial Probability formula is....

$P= ^nC_{r}*p^r*(1-p)^n^-^r$ , where p is the probability of success, n is the total number of trials and r is the desired numbers of trials.

Given, the probability that a computer will be defective is 0.15 , so p = 0.15

Five computers are manufactured and we need to find the probability that all of them will be defective. That means, n = 5 and r = 5

Now according to the above formula....

$P= ^5C_{5}*(0.15)^5*(1-0.15)^5^-^5 \\ \\ P= 1*(0.15)^5* (0.85)^0\\ \\ P=(0.15)^5 =0.0000759375$

So, the probability that all of them will be defective is 0.0000759375

7 0

2 years ago