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nata0808 [166]
3 years ago
5

Please answer that for me i will mark brainliest If X was 30, y would be equal to what number?

Mathematics
1 answer:
Fed [463]3 years ago
7 0

Answer:

We cannot solve this.

Step-by-step explanation:

There is no equation to plug x in.

For example,

x + 7 = y

If x = 30, 30 + 7 = 37

Hope this helps!

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QUICK WHAT IS:which expression represents a factorization of 32m + 56mp
Anna71 [15]
Simplifying that expression will be
32m + 56mp = 8m (4 + 7p)
5 0
3 years ago
Solve y over negative 2 5 = 13.
devlian [24]
Y/-2 + 5 = 13
y/-2 = 13 - 5 = 8
y = -2(8) = -16
y = -16
8 0
3 years ago
Read 2 more answers
What is an expression equivalent to 7(c-4)
Lemur [1.5K]

Answer:

7c - 28

Step-by-step explanation:

7(c - 4)

(7 × c) + (7 × - 4)

7c + (7 × - 4)

7c + -28

7c - 28

7 0
3 years ago
I need help really bad
Ivan

Answer:

The difference of ten and five: 10 - 5

The quotient of ten and five: 10 ÷ 5

The product of ten and five: 10 ⋅ 5

The sum of ten and five: 10 + 5

Step-by-step explanation:

difference is subtraction

quotient is division

product is multiplication

sum is addition

8 0
3 years ago
Read 2 more answers
According to the U.S. Bureau of the Census, the average age of brides marrying for the first time is 23.9 years with a populatio
JulsSmile [24]

Answer:

We conclude that young women are delaying marriage and marrying at a later age.

Step-by-step explanation:

We are given that the average age of brides marrying for the first time is 23.9 years with a population standard deviation of 4.2 years.

The sociologist randomly samples 100 marriage records and determines the average age of the first time brides is 24.9 years.

Let \mu = <u><em>average age of brides marrying for the first time.</em></u>

So, Null Hypothesis, H_0 : \mu = 23.9 years     {means that young women are not delaying marriage and marrying at a later age}

Alternate Hypothesis, H_A : \mu > 23.9 years     {means that young women are delaying marriage and marrying at a later age}

The test statistics that would be used here <u>One-sample z test statistics</u> as we know about the population standard deviation;

                         T.S. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample average age of the first time brides = 24.9 years

            \sigma = population standard deviation = 4.2 years

            n = sample of marriage records = 100

So, <u><em>the test statistics</em></u>  =  \frac{24.9-23.9}{\frac{4.2}{\sqrt{100} } }

                                     =  2.381

The value of z test statistics is 2.381.

<u>Now, at 1% significance level the z table gives critical value of and 2.326 for right-tailed test.</u>

Since our test statistic is more than the critical value of z as 2.381 > 2.326, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that young women are delaying marriage and marrying at a later age.

5 0
3 years ago
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