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2 years ago

PLEASE HELP ASAP ! Pictures are linked below thank you

Mathematics

1 answer:

Charra [1.4K]2 years ago

6 0

Answer:

see below

Step-by-step explanation:

Step A is wrong because when taking terms (x - 6) to the left side these signs should change but they did not change in 1st step

John set the equation equal to zero incorrectly

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a D.J. at a school dance plans to play dance music for 2 hours. she has 20 requests for songs. Each song plays for 3 1/2 minutes

viva [34]

So, put 2 hours into minutes. You get 120. Now, seeing how you have 20 song requests, and each one takes 3.5 minutes, multiply those two values. Now you have 70. After doing that, just subtract 70 from 120 and get 50.

tada

answer is 50

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3 years ago

A high-speed computer printer prints a page in 1/6 second. Using this printer, how long would it take to print 30 pages?

german

$30*\frac{1}{6}=\frac{30}{6}=5$

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3 years ago

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A set of data was published in the fall 2019 Phi Kappa Phi Forum regarding the performance of Major League Baseball (MLB) umpire

const2013 [10]

Answer:

The answer is "1.30".

Step-by-step explanation:

Proportion of population $=0.20$

Ratio sample $=\frac{70}{300}=\frac{7}{30}=0.23$

Statistics of the test:

$\to Z=\frac{(0.23-0.2)}{\sqrt{(\frac{0.2\times(1-0.2)}{300})}}\\\\$

$=1.30$

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2 years ago

9(x+3)=3(3x+6)+9 how many solutions?

Slav-nsk [51]

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$9(x +3) = 3(3x + 6) + 9$

$9x + 27 = 9x + 18 + 9$

$9x + 27 = 9x + 27$

The two sides of this equation are exactly the same, so the above equation holds for any value of x , <em>thus we have infinite solution for it.</em>

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3 years ago

Question 3

Natasha2012 [34]

Answer:

60,000 grams

Step-by-step explanation:

Find how many grams she weighs by finding how many grams are in 60 kilograms.

There are 1000 grams in a kilogram, so to find her weight in grams, multiply 60 by 1000:

60(1000)

= 60,000

So, Julie weighs 60,000 grams

7 0

2 years ago

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