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Butoxors [25]
3 years ago
9

A store paid $80 for shoes, and ends up selling them for $64. What is the percent change? *

Mathematics
1 answer:
Lisa [10]3 years ago
3 0

Answer:

-20%

Step-by-step explanation:

percentage change is calculated by

(new price - old price) / old price

(64 - 80) / 80

please give thanks by hitting heart button! :)

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Write a number sentence to represent the sum modeled on the number line. In two or more complete sentences, explain your reasoni
Afina-wow [57]

Answer:

0 + (-2.5) + 5

Step-by-step explanation:

from 0 to -2.5 then to 5 so add 0 + (-2.5) + 5

4 0
3 years ago
An automobile insurance company issues a one-year policy with a deductible of 500. The probability is 0.8 that the insured autom
Effectus [21]

Answer:

y₀.₉₅ = 3659

Step-by-step explanation:

P( no accident ) = 0.8

P( one accident ) = 0

deductible = 500

mean = 3000

<u>Determine the 95th percentile of the insurance company payout </u>

Assuming : y =company payout , x =amount of loss incurred due to accident

Then :

P( x < 500 ) = 0.2 ( 1 - e^-500/3000)

                   = 0.2 ( 1 - e^-1/6 )

95th percentile =

= P( y < y₀.₉₅  ) 0.95

  P( y = 0 ) = 0.8 + 0.2 ( 1 - e^-1/6 ) = 0.8307

attached below is the remainder of the solution

5 0
3 years ago
A national survey indicated that 30% of adults conduct their banking online. It also found that 40% are under the age of 50. and
Svet_ta [14]

Answer:

Step-by-step explanation:

Hello!

I'll express all the given percentages as probabilities:

Given the events:

Banking online (Bo)

Under the age of 50 (<50)

P(Bo)= 0.30

P(<50)= 0.40

P(Bo ∩ <50)= 0.25

1) What percentage of adults do not conduct their banking online?

The event "adults that do not conduct their baking online" is the complement of the event "adults that conduct their baking online" Symbolically Bo^c

P(Bo^c)= 1 - P(Bo)= 1 - 0.30 = 0.70

2) What type of probability is 25%?

The probability P(Bo ∩ <50)= 0.25 is a joint probability, it indicates the intersection between both events.

3) Construct a contingency table showing all joint and marginal probabilities.

Check attachment.

4) What is the probability that an individual conducts banking online given that the individual is under the age of 50?

Symbolically:

P(Bo/<50)= <u> P(Bo ∩ <50) </u> = <u> 0.25 </u> = 0.625

                       P(<50)            0.40

I hope it helps!

4 0
3 years ago
Find the value of x.​
krok68 [10]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Whats 9+10??????????
nikdorinn [45]
The answer to 9+10 is 19 because if you add 9 to the number 10, you get 19
3 0
3 years ago
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