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Whitepunk [10]
2 years ago
12

An owner of a small store knows that in the last week 54 customers paid with cash 63 customers paid with a debit card, and 153 p

aid with a credit card. Based on the number of customers from last week, what is the probability as a percent that the next customer will pay with cash?​
​
Mathematics
1 answer:
777dan777 [17]2 years ago
7 0

Answer:

20% probability that the next customer will pay with cash

Step-by-step explanation:

A probability, as a decimal, is the number of desired outcomes divided by the number of total outcomes.

To find as percent, we multiply by 100.

In this question:

Total of 54+63+153 = 270 customers.

Of those, 54 paid with cash.

Based on the number of customers from last week, what is the probability as a percent that the next customer will pay with cash?​

54/270 = 0.2

0.2*100 = 20%

20% probability that the next customer will pay with cash

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There are 22 rows of seats on a concert hall: 23 seats are in the 1st row, 27 seats on the 2nd row, 31 seats on the 3rd row, and
JulijaS [17]
We can model this situation with an arithmetic series.
we have to find the number of all the seats, so we need to sum up the number of seats in all of the 22 rows.

1st row: 23
2nd row: 27
3rd row: 31
Notice how we are adding 4 each time.

So we have an arithmetic series with a first term of 23 and a common difference of 4.

We need to find the total number of seats. To do this, we use the formula for the sum of an arithmetic series (first n terms):

Sₙ = (n/2)(t₁ + tₙ)

where n is the term numbers, t₁ is the first term, tₙ is the nth term

We want to sum up to 22 terms, so we need to find the 22nd term

Formula for general term of an arithmetic sequence:

tₙ = t₁ + (n-1)d,

where t1 is the first term, n is the term number, d is the common difference. Since first term is 23 and common difference is 4, the general term for this situation is

tₙ = 23 + (n-1)(4)

The 22nd term, which is the 22nd row, is

t₂₂ = 23 + (22-1)(4) = 107

There are 107 seats in the 22nd row.

So we use the sum formula to find the total number of seats:

S₂₂ = (22/2)(23 + 107) = 1430 seats

Total of 1430 seats.
If all the seats are taken, then the total sale profit is

1430 * $29.99 = $42885.70
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3 years ago
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Elden [556K]

Answer:

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Step-by-step explanation:

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puteri [66]

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Step-by-step explanation:

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Answer:

Step 1: Flip the equation.

−x−2=y

Step 2: Add 2 to both sides.

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Step 3: Divide both sides by -1.

−x

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Step-by-step explanation:

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