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Nina [5.8K]
3 years ago
9

AH SOMEONE HELP ME A department store has 950 customers in a day, and 82% of customers made a purchase. Of the customers who mad

e a purchase, 528 bought just one thing, 186 bought two, and the remainder bought three or more. How many customers bought three or more?
Mathematics
1 answer:
uranmaximum [27]3 years ago
8 0
65 bought 3 or more.

950x0.82=779
779-528=251
251-186=65
Final answer: 65
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D. 68 (APEX).........................................................................................

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What is the slope of the line passing (-3 ,4) and (2, -1)?
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The slope is -1.

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5 0
3 years ago
5 (2x – 1) –7 = 2 (x – 3)
Sladkaya [172]

Answer:

x−3=x−3

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Evaluate (2x−1)−7, then set it equal to 2.

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7 0
3 years ago
A business organization needs to make up a 7 member fund-raising committee. The organization has 6 accounting majors and 7 finan
photoshop1234 [79]

Answer: 658 ways.

Step-by-step explanation:

To find the number of ways the number "r" items can be chosen from the available number "n", the combination formula for selection is used. This formula is denoted as:

nCr = n! / (n-r)! × r!

Where n! = n×(n-1)×(n-2) ... ×3×2×1.

If we have 6 accounting majors and 7 finance majors and we are to choose a 7-member committee from these with at least 4 accounting majors on the committee, then the possibilities we have include:

[4 accounting majors and 3 finance majors] Or [5 accounting majors and 2 finance majors] or [ 6 accounting majors and 1 finance major].

Mathematically, this becomes:

[6C4 × 7C3] + [6C5 × 7C2] + [6C6×7C1]

525 + 126 + 7 = 658 ways.

Note: it is 6C4 because we are choosing 4 accounting majors from possible 6. This applies to other selection possibilities.

8 0
3 years ago
Hi hi. I have a legit question now.
pochemuha

Answer:

A. 25.14%

B. 0.99%

C. 100%

D. 86.07%

Step-by-step explanation:

μ = 52, σ = 3

Each problem gives you an x value and asks you to find a probability.  First calculate the z score(s), then look up in a table or use a calculator.

z = (x − μ) / σ

A. Find P(x < 50)

z = (50 − 52) / 3

z = -0.67

P(z < -0.67) = 0.2514

B. Find P(x > 59)

z = (59 − 52) / 3

z = 2.33

P(z > 2.33) = 1 − 0.9901 = 0.0099

C. Find P(x > 40)

z = (40 − 52) / 3

z = -4

P(z > -4) = 1 − 0 = 1

D. Find P(48 < x < 57)

z₁ = (48 − 52) / 3

z₁ = -1.33

z₂ = (57 − 52) / 3

z₂ = 1.67

P(-1.33 < z < 1.67) = 0.9525 − 0.0918 = 0.8607

I used a z score table.  For more accurate answers, use a calculator.

8 0
3 years ago
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