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motikmotik
3 years ago
14

Combine like terms. 5x + 2x

Mathematics
2 answers:
Luden [163]3 years ago
8 0

Answer:

<h3>7x</h3>

Step-by-step explanation:

5x + 2x = (5 + 2)x = 7x..

borishaifa [10]3 years ago
3 0

Answer: 7x

Explanation: In order for you to be able to add two terms together, you have to have a situation like you do in this problem, 5x + 2x.

Since both terms contain an <em>x</em>, you can add them together.

So 5x + 2x simplifies to 7x.

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Sent you a pic of the product of the expressions.

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3 years ago
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5 friends split 1/2 of a chocolate bar. How<br> much does each friend eat?<br> Draw a model.
Vinvika [58]

Answer:

1/10

Step-by-step explanation:

the friends eat 1/10 of the whole bar or 1/5 of half a bar

3 0
3 years ago
I answered wrong what’s the right answer?
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3 years ago
Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches.
Maurinko [17]

Answer:

Q3 = 65.7825.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 63.6, \sigma = 2.5

Find the value of the quartile Q3. (Hint: Q3 has an area of 0.75 to its left.)

This is the value of X when Z has a pvalue of 0.75. So it is X when Z = 0.675.

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 63.6}{2.5}

X - 63.6 = 0.675*2.5

X = 65.7825

Q3 = 65.7825.

3 0
3 years ago
A survey found that 12 out of every 15 people prefer eating out over cooking. If 500 people took the survey, how many people pre
Artyom0805 [142]

Answer:

400 people

Step-by-step explanation:

15 = 12

500 = x

Cross multiply

15x = 12 × 500

Divide both sides by 15

\frac{15x}{15} = \frac{12 * 500}{15}  (* means multiplication if you do not know)

\frac{12 * 500}{15} = 100 × 4= 400 people

8 0
3 years ago
Read 2 more answers
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