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Savatey [412]
3 years ago
15

What value of x makes the equation true?​

Mathematics
1 answer:
arsen [322]3 years ago
6 0

Answer:

x = 9/4

Step-by-step explanation:

-3x + 10 = 5x - 8

Add 3x to both sides

10 = 8x - 8

Add 8 to both sides

18 = 8x

Divide both sides by 8

18/8 = x

Reduce

9/4 = x

x = 9/4

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HELP PLSSS I DONT REMEMBER!!
Tatiana [17]

Answer:

8x-31 = 2x+92

Step-by-step explanation:

The angles are corresponding angles and corresponding angles are equal

8x-31 = 2x+92

8 0
3 years ago
Which statements are true about a rectangular pyramid with a height of 9 centimeters and a base with the dimensions of 4 centime
artcher [175]

<u>Answer:</u>

B.The area of the base of the pyramid is 24cm^2.

C.A rectangular prism with the dimensions of 9 cm by 4 cm by 6 cm will have 3 times volume of this pyramid.

E.The volume of this pyramid is 72cm3.

<u>Step-by-step explanation:</u>

Area of base of the pyramid = l × w = 4 × 6 = 24 cm^2

Volume of rectangular pyramid = (l × w × h)/3 = (4 × 6 × 9)/3 = 72 cm^3

Volume of rectangular prism = w × h × l = 9 × 4 × 6 = 216 cm^3

So according to these calculations, the correct answer options are:

B.The area of the base of the pyramid is 24cm^2.

C.A rectangular prism with the dimensions of 9 cm by 4 cm by 6 cm will have 3 times volume of this pyramid.

E.The volume of this pyramid is 72cm3.

4 0
4 years ago
Read 2 more answers
A restaurant decides to test their oven's thermostat to see if it is working properly, that is, if the actual temperature inside
Taya2010 [7]

Answer:

For this case we have information from a sample of n =20 times of temperatures of the oven

The parameter of interest is \mu population temperature mean of the oven

And the statistic is calculated with this formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

With n = 20 and represent the mean temperature of the oven  

The correct option for this case is:

mu = the true mean temperature of the oven xbar = the true mean temperature of the oven

Step-by-step explanation:

Previous concepts

Parameter represent a property of a population and is calculated with the information of all the populatio. Some examples are the population mean and deviation \mu,\sigma

Statistic represent a propoerty of a sample and are used used in order to describe the population parameters, since represent estimators of the real parameters.

Solution to the problem

For this case we have information from a sample of n =20 times of temperatures of the oven

The parameter of interest is \mu population temperature mean of the oven

And the statistic is calculated with this formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

With n = 20 and represent the mean temperature of the oven  

The correct option for this case is:

mu = the true mean temperature of the oven xbar = the true mean temperature of the oven

8 0
3 years ago
Read 2 more answers
Julissa wants to join her local gym. A gym membership is $27 a month with a one–time initiation fee of $117. Which equation repr
BARSIC [14]

Answer:

y=27x +117

This is because there is only a one time fee of $117 and $27 per month (x)

5 0
3 years ago
6) You can buy 3 apples at the Quick Market for $1.26. You can buy 5 of the same apples at Stop and Save for $1.15. Which place
Marysya12 [62]

Answer:

Stop and save is the best

Step-by-step explanation:

I say this because your getting  the same apples for cheap not only are they cheap but your also getting more.

6 0
3 years ago
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