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goldfiish [28.3K]

3 years ago

9

Cedric buys songs at a store that charges $1.20 per song. Shumeka buys songs at a different store. The table shown here gives th

e cost when she buys 6, 7, and 8 songs.

2 answers:

Inga [223]3 years ago

6 0

They cost the same at both stores

jok3333 [9.3K]3 years ago

5 0

Answer:

songs cost the same at both stores

Step-by-step explanation:

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PLEASE HELP WITH THIS QUESTION, ILL MARK BRAINLIEST

Travka [436]

Answer:

Step-by-step explanation:

35-original drill set price

25% or .25-the additional price

markup in decimal form- 0.25

markup in percent form- 25%

Equation-35 + 25% or 0.25

35 + 25% = 43.75

4 0

3 years ago

HELP HELP IM CRYINRG I BARELY CANT TYPE I HAVE A EXAM RIGHT NOW IN 9:30 AND RIGHT NOW ITS 9:05 SO I HAVE A LITTLE TIME PLSSS IM

morpeh [17]

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6 0

3 years ago

James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The

Brrunno [24]

Answer:

The correct option is 4.

Step-by-step explanation:

Given information:

Bring lunch : 46 males, 254 females

Buy lunch : 176 males, 264 females

Total number of peoples is

$46+254+176+264=740$

Total number of males is

$46+176=222$

The probability of male is

$P(Male)=\frac{Males}{Total}=\frac{222}{740} =0.3$

Since probability of males is 0.3, therefore options A and C are incorrect.

Total number of persons who buys lunch is

$176+264=440$

The probability of persons who buys lunch is

$P(\text{Buys lunch})=\frac{\text{Buys lunch}}{Total}=\frac{440}{740} =\frac{22}{37}$

We need to find the probability of P(male | buys lunch).

According to the conditional probability, we get

$P(\frac{A}{B})=\frac{P(A\cap B)}{P(B)}$

P(male | buys lunch) $=\frac{P(\text{male }\cap \text{ buys lunch})}{P(\text{buys lunch})}$

P(male | buys lunch) $=\frac{\frac{176}{740}}{\frac{22}{37}}$

P(male | buys lunch) $=\frac{2}{5}=0.4$

Therefore the correct option is 4.

8 0

3 years ago

Read 2 more answers

The fitness center held a weight loss competition in which 128 people participated. The amount of weight loss was normally distr

iris [78.8K]

Answer:

37

Step-by-step explanation:

Given :

Sample size, n = 128

Mean, μ = 18

Standard deviation, σ = 5.4

Number of people who lost atleast 15 pounds :

The Zscore = (x - μ) / (σ)

Zscore = (15 - 18) / 5.4

Zscore = - 3 / 5.4

Zscore = - 0.5555

P(Z < - 0.555) = 0.28945

Number of people who lost atleast 15 pounds :

0.28945 * 128 = 37.0496

= 37 people

3 0

3 years ago

Add a meeting six people each one another by shaking hands. If each person must shake hands once with every other person in the

Phantasy [73]

The number of handshakes is the number of ways 6 objects can be selected 2 at a time.

.. C(6,2) = 6·5/(2·1) = 15

The appropriate choice is

... C) 15

_____

Consider that each person can shake hands with 5 others. That's a total of 6*5 = 30 handshakes, but it counts both A shaking with B and B shaking with A. If each pair of persons only shakes hands once, the number of handshakes is 30/2 = 15.

8 0

3 years ago