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ratelena [41]
3 years ago
11

Pamela is 13 years younger than jiri. The sum of their ages is 41. What is jiri’s age?

Mathematics
2 answers:
Tju [1.3M]3 years ago
6 0

Answer:

27

Step-by-step explanation:

Pamela is 13 years younger than Jiri and the sum of their ages is 41, therefore (x=Jiri's age) (x-13) + x = 41)  2x-13=41  x=14. Pamela is 14 and Jiri is 27

Nana76 [90]3 years ago
4 0
Jiri is 27

Solution-

Pamela is X-13 years old
Jiri is X years old

So X+X-13=41
2X+13+13
2X=54
X=27

Check Answer-

Jiri- 27
Pamela- 27-13= 14
So Pamela is 14

14+27=41
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4 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
Faces A and C are squares.
zysi [14]
Answer

Square prism

It has 2 squares and 4 rectangles
4 0
3 years ago
Read 2 more answers
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