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Alex_Xolod [135]
3 years ago
8

Samantha, Wilbert and Zahir have ages in ratio of 7:8:9. Zahir is 8 years older than Samantha. What are their ages?

Mathematics
2 answers:
vichka [17]3 years ago
4 0

Answer:

Samantha: 28, Wilbert: 32, Zahir: 36.

Step-by-step explanation:

The difference of 2 ratio units corresponds to a difference of 8 years, so each ratio unit stands for 4 years.

The ratio of ages in years is ...

... 4×7 : 4×8 : 4×9 = 28 : 32 : 36

Readme [11.4K]3 years ago
4 0
Zahir is 36 years old
Samantha is 28 years old
(Wilbert is 32 years old)

9×4=36
7×4=28
36-28=8
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wel

Answer:

At a certain pizza parlor,36 % of the customers order a pizza containing onions,35 % of the customers order a pizza containing sausage, and 66% order a pizza containing onions or sausage (or both). Find the probability that a customer chosen at random will order a pizza containing both onions and sausage.

Step-by-step explanation:

Hello!

You have the following possible pizza orders:

Onion ⇒ P(on)= 0.36

Sausage ⇒ P(sa)= 0.35

Onions and Sausages ⇒ P(on∪sa)= 0.66

The events "onion" and "sausage" are not mutually exclusive, since you can order a pizza with both toppings.

If two events are not mutually exclusive, you know that:

P(A∪B)= P(A)+P(B)-P(A∩B)

Using the given information you can use that property to calculate the probability of a customer ordering a pizza with onions and sausage:

P(on∪sa)= P(on)+P(sa)-P(on∩sa)

P(on∪sa)+P(on∩sa)= P(on)+P(sa)

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P(on∩sa)= 0.36+0.35-0.66= 0.05

I hope it helps!

5 0
3 years ago
Which of these points are on a line that has a slope of -3?
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Simple....

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Thus, your answer.
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