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2 years ago

Joan has 35 books. She has read 8 of them. Sally has 48 books. How many do they have together?

Mathematics

2 answers:

Zolol [24]2 years ago

4 0

Answer:

Step-by-step explanation:

swat322 years ago

3 0

Answer:

83 books

Step-by-step explanation:

Joan: 35

Sally: 48

48+35=83

The question has useless information to throw you off from the task at hand.

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Ana's manager is trying to figure out how much to charge for a chair that just arrived. If the wholesale price of the chair is $

Veronika [31]

Answer: 249.75

Step-by-step explanation: 85% of 135 =114.75 +135=249.75

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3 years ago

The director of the library believes that 14% of the library's collection is checked out. If the director is right, what is the

Ksivusya [100]

Answer: 0.2643

Step-by-step explanation:

Let p be the population proportion and $\hat{p}$ be the sample proportion .

As per given question , we have

$p=0.14\\\\ \hat{p}=0.13\\\\ n=478$

z-score : $\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$z=\dfrac{0.13-0.14}{\sqrt{\dfrac{0.14(1-0.14)}{478}}}\\\\=-0.630087269176\approx-0.63$

The required probability ( using z-table ):-

$P(z$

Hence, the probability that the proportion of books checked out in a sample of 478 books would be less than 13% = 0.2643

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3 years ago

Help plz and thanks

rodikova [14]

Answer:

Step-by-step explanation:

6 0

2 years ago

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If a line perpendicular to 2y=x+5 that passes through (2,1) using the slope- intercept form

arlik [135]

Slope of 2y = x + 5:-
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it passes through (2 , 1) so we have

y- 1 = -2(x - 2)
y = -2x + 4 + 1

The answer is y = -2x + 5

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2 years ago

What are the factors of 13m-2n

Lelechka [254]

<span>the first term 13m has TWO factors 13 and m
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3 years ago

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