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3 years ago

14

A selection of jigsaw puzzles at one store is priced at $12 each. During a sale, a customer who buys 2 of these puzzles at the r

egular price may buy additional puzzles at half price. How many puzzles could a customer buy for $42?

1 answer:

MrRissso [65]3 years ago

8 0

Answer:

24

Step-by-step explanation:

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Patrick is constructing the circumscribed circle for △RST.

coldgirl [10]

To me, the answer would be the option A : <span>
Construct the perpendicular bisector of ST¯¯¯¯¯ .

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Photon</span>

5 0

4 years ago

the driving distance from chicago to san francisco is 2,142 miles. the hathaway family left chicago on monday morning, december

lubasha [3.4K]

Miles driven in 119 gallons = 2142 miles
Miles driven in 1 gallon = (2142/119) * 1
= 18 miles

6 0

3 years ago

PLEASE PLEASE HELP ME:(( I NEED WORKING AS WELL

mr Goodwill [35]

the equation of the line has form

y=kx+b

$\left \{ {{5=k*0+b} \atop {9=k*2+b}} \right. \\b=5\\9=2k+5\\2k=4\\k=2$ , so

$y=2x+5$

The second line is parallel to the first and runs 7 units lower, so b=5

$0=1k+5\\k=-5\\y=-5x+5$

8 0

3 years ago

1. Suppose you have just received a shipment of 100 iPads where 7 iPads are defective. To determine whether or not you will acce

Lyrx [107]

Answer:

$p(x\geq 1)=0.1975$

Step-by-step explanation:

the probability that x iPads are defective in the sample follows a hypergeometric distribution, so it is calculated as:

$p(x)=\frac{kCx*((N-k)C(n-x))}{NCn}$

Where $aCb=\frac{a!}{b!(a-b)!}$

Because we have a N elements with k elements that are defective and we are going to take a sample of n elements. So, replacing N by 100, k by 7 and n by 3, we get:

$p(x)=\frac{7Cx*((100-7)C(3-x))}{100C3}$

Now, the probability of rejecting the shipment is the probability that at least one iPad of the sample is defective, so:

$p(x\geq 1)=p(1)+p(2)+p(3)$

Then:

$p(1)=\frac{7C1*((100-7)C(3-1))}{100C3}=0.1852\\p(2)=\frac{7C2*((100-7)C(3-2))}{100C3}=0.0121\\p(3)=\frac{7C3*((100-7)C(3-3))}{100C3}=0.0002$

Finally, the probability of rejecting the shipment is:

$p(x\geq 1)=0.1852+0.0121+0.0002=0.1975$

3 0

3 years ago

Pls help 100 points its for a test pls help

Pepsi [2]

Answer:

A) 30x+32=560

Step-by-step explanation:
Since mikey has already read 32 pages last week and would read 30pages per hour, then in order to get 560

You do:

32(pages)+30(pages*hour)*x(hours) =560 pages.

5 0

3 years ago