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3 years ago

6(x-3)-10=2(x+3) please help me solve this equation

1 answer:

7 0

6(x - 3) - 10 = 2(x + 3)
6x - 18 - 10 = 2x + 6
6x - 28 = 2x + 6
add 28 to both sides of the equation
6x = 2x + 34
subtract 2x from both sides of the equation
4x = 34
divide 4 from both sides of the equation
x = 8.5

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Which statement correctly compares the mean number of students for the data in the plots?

satela [25.4K]

Answer:

"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."

Step-by-step explanation:

We need to compute the mean for each.

Poplar Middle School:

Lets list the numbers

20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24

The average is sum of all divided by number of numbers, that will be:

435/20 = 21.75

Oak Middle School:

The numbers are:

20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29

The average is sum divided by number of numbers, that will be:

483/20 = 24.15

The difference in mean is:

24.15 - 21.75 = 2.4

We can say, that is about 2 more students in Oak Middle School, correct answer choice is "2nd answer choice" - "There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."

7 0

4 years ago

wo urns contain white balls and yellow balls. The first urn contains 3 white balls and 6 yellow balls and the second urn contain

vlada-n [284]

Answer:

Answer is

$\frac{7}{30}$

Step-by-step explanation:

Given that there are two urns. First urn contains 3 white balls and 6 yellow balls and the second urn contains 7 white balls and 3 yellow balls.

A ball is drawn from each urn.

Probability for ball from urn I is white = no of white balls/total balls in I urn

$= \frac{3}{9} =\frac{1}{3}$

Probability for ball from urn II is white = no of white balls/total balls in I urn

$=\frac{7}{10}$

Since drawing one ball from each urn is independent of the other we find

Prob that both balls are white=

Prob that ball from I urn is white *Prob that ball from II urn is white

= $= \frac{7}{10} *\frac{1}{3}\\=\frac{7}{30}$

5 0

3 years ago

Read 2 more answers

a bathtub that hols 32 gallons of water contains 12 gallons of water you begin filling it and after 5 minutes the tub is full

kramer

Okay. I am guessing that you are asking for the amount of water poured per minute. The bathtub already holds 12 gallons and 32 - 12 is 20. The tub is full in 5 minutes. Let’s divide. 20/5 is 4. There are 4 gallons of water filled in the tub per minute.

7 0

3 years ago

PLZ HELP IN QUIZ

nikklg [1K]

Answer:

1. Which statement would prove there is a. 2. There are two rectangles. Rectangle WXYZ has a length of 21 to two sides of another triangle, then the Which statement will always be true of the 6. The diagram shows the side lengths of two similar triangles. entre 15 km.

Step-by-step explanation:

5 0

3 years ago

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The cash price of a television set is $10 000.00 .A woman buys the television set on hire purchase by making a 20% down payment

umka21 [38]

The amount that'll be saved if the television was bought for cash is $1600.

Cash price of television = $10000

Amount paid through hire purchase will be:

= (20% × $10000) + ($800 × 12)

= (0.2 × $10000) + $9600.

= $2000 + $9600.

= $11600

The amount that could have been saved will be:

= $11600 - $10000.

= $1600

Read related link on:

brainly.com/question/21247090

6 0

3 years ago

6(x-3)-10=2(x+3) please help me solve this equation ​

6(x-3)-10=2(x+3) please help me solve this equation