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3 years ago

5

Angie has saved $2.50 of her allowance every week for the past 12 weeks. If she continues saving the same amount each week, how

many more weeks will it take her to save a total of $50

1 answer:

topjm [15]3 years ago

7 0

Answer:

20

Step-by-step explanation:

$2.50 x 12 equals 30

2.50 x 20 equals 50

x10= 2.50 x 20 =$50

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What common side does ΔABC share with ΔADC?<br><br><br> BC<br><br> AD<br><br> BD<br><br> AC

Zarrin [17]

I think it’s AC, but I may be wrong

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2 years ago

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Match the two numbers with their least common multiple

Darya [45]

8 -<u> 8</u>, 16, 24, 32, 40, 48

4 - 4, <u>8</u>, 12, 16,

So the LCM of 8 and 4 are C) 8

8 - 8, 16, <u>24</u>, 32, 40, 48

6 - 6, 12, 18,<u> 24</u>, 30

So the LCM of 8 and 6 are A) 24

8 - 8, 16, 24, 32, <u>40</u>, 48

10 - 10, 20, 30, <u>40</u>, 50

The LCM of 8 and 10 are B) 40

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3 years ago

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Andrej [43]

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Step-by-step explanation:

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2 years ago

Find the complete factorization of the expression. 12xy + 28xz A) 4yz(10x) B) 4yz(3x + 7x) C) 4x(3y + 7z) D) 4(3xy + 7yz)

VashaNatasha [74]

Answer:

<em>The correct option is: C) 4x(3y + 7z)</em>

Step-by-step explanation:

Given expression is: $12xy+28xz$

First we need to find the GCF(Greatest common factor) of $12xy$ and $28xz$ and then we will factor out that GCF.

$12xy \Rightarrow 2\times 2\times 3\times x\times y\\ \\ 28xz\Rightarrow 2\times 2\times 7\times x\times z$

We can see that the common factors are: $2,2, x$

So, the GCF will be: $2\times 2\times x= 4x$

Now factoring out $4x$ from the given expression, we will get.....

$12xy+28xz\\ \\ = 4x(\frac{12xy}{4x}+ \frac{28xz}{4x}) \\ \\ =4x(3y+7z)$

So, the complete factorization will be: $4x(3y+7z)$

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3 years ago

An experiment involves selecting a random sample of 256 middle managers for study. one item of interest is their annual income.

scZoUnD [109]

The solution would be like this for this specific problem:

Given:

N = 256

Sample Mean = $35,420

Standard Deviation = $2,050

Find:

Standard Error of Mean = ?

The formula for the standard error of the mean is:

<span>Om = o / sqrt(N)</span>

<span>Om = the </span>standard deviation of the sampling distribution of the mean

where o = standard deviation of the sampling distribution of a statistic

N = sample size

<span>So substituting the formula with the given:

Om = $2,050 / sqrt(256)</span>

<span>Om = $2,050 / 16</span>

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Therefore, the sample standard error of the mean is $128.125.

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3 years ago