All categories

3 years ago

A bookstore sells 3 books for $42. Which table represents the relationship between number of books and the total price?

Mathematics

2 answers:

enot [183]3 years ago

8 0

I have no idea what this question is asking

zaharov [31]3 years ago

3 0

Answer:its d

Step-by-step explanation:

if 3/42 is what you need to show the relationship of, then you need to make a ratio which would be 3:42 and the rest would be 6:45 and 9:48

You might be interested in

HELP PLEASE NEED IT THANKS

Naya [18.7K]

<h3>Hello there i hope you are having a great day :) </h3><h3>Shop A Shop B </h3><h3>55 36 </h3><h3>52 40 </h3><h3>50 34 </h3><h3>47 39 </h3><h3>51 44 </h3><h3>48 41 </h3><h3>53 40 </h3><h3>53 38</h3><h3>1) Mean for both coffee shops = Shop A = 409 ÷ 8 = 51.125 Shop B = 312 ÷ 8 = 39.</h3><h3>2) Mean for Shop B = 39</h3><h3>3) Mean for Shop A = 51.125</h3><h3>4) Median for Shop A = 52</h3><h3>5) Median for Shop B = 39</h3><h3>Hopefully this well help you :)</h3>

5 0

3 years ago

A standard deck of cards contains 52 cards. One card is selected from the deck.(a)Compute the probability of randomly selecting

Aneli [31]

a. There are four 5s that can be drawn, and $\binom43=4$ ways of drawing any three of them. There are $\binom{52}3=22,100$ ways of drawing any three cards from the deck. So the probability of drawing three 5s is

$\dfrac{\binom43}{\binom{52}3}=\dfrac4{22,100}=\dfrac1{5525}\approx0.00018$

In case you're asked about the probability of drawing a 3 or a 5 (and NOT three 5s), then there are 8 possible cards (four each of 3 and 5) that interest you, with a probability of $\frac8{52}=\frac2{13}\approx0.15$ of getting drawn.

b. Similar to the second case considered in part (a), there are now 12 cards of interest with a probability $\frac{12}{52}=\frac3{13}\approx0.23$ of being drawn.

c. There are four 6s in the deck, and thirteen diamonds, one of which is a 6. That makes 4 + 13 - 1 = 16 cards of interest (subtract 1 because the 6 of diamonds is being double counted by the 4 and 13), hence a probability of $\frac{16}{52}=\frac4{13}\approx0.31$ .

- - -

Note: $\binom nk$ is the binomial coefficient,

$\dbinom nk=\dfrac{n!}{k!(n-k)!}={}_nC_k=C(n,k)=n\text{ choose }k$

6 0

4 years ago

Graph these equations:<br> x + 3y = 6<br> x + 3y = 9

Evgen [1.6K]

I don’t know if you can see this but I hope it does if u don’t understand let me know so I can explain!

6 0

3 years ago

Heights of male students in the eighth grade are normally distributed with a mean of 57.2 in. and standard deviation of 2.4 in.

romanna [79]

<span>In statistics finding percentiles relates to the standard deviation and something called a z-score. For normally distributed data the z-score represents how many standard deviations above or below the mean that group is a part of. The z-score for normally distributed data for the 90th percentile is 1.28. The standard deviation is then multiplied by the z-score to find, in this case, the shotlrtest height needed to be in the 90th percentile of this population. In this case to be in the 90th percentile your height must be 60.27 inches.</span>

3 0

3 years ago

Hillary needs a few new items for the start of softball season. She found some great sales! Help her find out the price she will

kolezko [41]

Answer:Hillary will pay $35.00 for softball glove, $20.00 for soft ball bat and $40.00 for cleats

Step-by-step explanation:

Step 1

A percentage off of a price of an item is the amount that can be saved from purchasing that item, it can also be referred as a discount given on an item purchase.

Step 2 --- Calculation

Actual Price of Softball glove= $50

Discount= 50 x 30/100 = $15.00

Price to pay= $50 - $15.00 = $35.00

Actual Price of soft ball bat= $50

Discount= 50 x 60/100 = $30.00

Price to pay= $50 - $30.00 = $20.00

Actual Price of cleats= $50

Discount= 50 x 20/100 = $10.00

Price to pay= $50 - $10.00 = $40.00

Therefore, Hillary will pay $35.00 for softball glove, $20.00 for soft ball bat and $40.00 for cleats

4 0

3 years ago