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PtichkaEL [24]
3 years ago
11

An engineering school reports that 57% of its students were male (M), 33% of its students were between the ages of 18 and 20 (A)

, and that 20% were both male and between the ages of 18 and 20.
What is the probability of a random student being male or between the ages of 18 and 20?

Mathematics
1 answer:
aleksandrvk [35]3 years ago
5 0

Answer: See explanation

Step-by-step explanation:

A table has been attached for further information.

The probability of a random student being male or between the ages of 18 and 20 will be:

= P(male)+P(18-20 age) - P(male and 18-20 age)

= 0.57 + 0.33 - 0.20

= 0.70

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3 years ago
Challenge A movie theater sends out a coupon for 15% off the price of a ticket. Write an equation
marshall27 [118]

Answer:

The equation is y= 0,65 x

If x is the price of the ticket without the coupon, and the theater offers a discount if you have a coupon, then having a coupon means that the price a person ultimately  pays (y) is  the original price (x) minus a 35% of this price: y= x -0.35 x . By association: y= (1-0.35) x and then y= 0.65 x.

The line should be in the first quadrant because the first quadrant allows you to represent a situation in which the dependent variable (y) and the independent variable (x) are both positive. This is the case in this exercise, because both prices, the one without discount (x) and the one with discount (y) are necessary positive (you can not pay a negative price!).

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The price without discount (or without the coupon) is x.

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4 0
3 years ago
I really need help, someone please help me
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Answer:

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alexgriva [62]

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