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Nikitich [7]
3 years ago
13

As a promotion, the first 50 customers who entered a certain store at a mall were asked to choose from one of two discounts. The

first discount choice was 20% off all purchases made that day. The second discount choice was 10% off all purchases for the week. Of those who received the discounts, 28 chose the first discount and 22 chose the second discount. One customer will be selected at random from those who received a discount. Let F represent the event that the selected person chose the first discount, and let S represent the event that the selected person chose the second discount.
Requried:
Are F and S mutually exclusive events?
Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Answer: rerere

Step-by-step explanation: rerer

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A family is driving 600 miles. Assuming they stop to get gas 3 times and eat 2 times, how many hours will it take them to reach
Umnica [9.8K]
Lets assume that they are driving at an average of 70mph, and getting gas takes 10 minutes, and stopping to eat takes 30.

t=d/s

t=600/70
t=8.57 

Stopping to eat twice is 30 x 2 = 60 (another hour)

and Gas is 10 x 3 = 30 minutes (0.5 hours)

Total time is,

8.57+1+0.5 =10.07

So the trip will take approx 10.7 hours total.

(This is using my assumptions, from my experience!)


8 0
3 years ago
Help will give 25 brainlest points
Alekssandra [29.7K]

Step-by-step explanation:

The ratio of the two shorter legs of the top triangle is

\dfrac{5}{4} = 1.25

The bottom triangle has the following ratio:

\dfrac{7.5}{6} = 1.25

Since their ratios are the same, this means that the two triangles are similar.

6 0
3 years ago
Two trains leave stations 360 miles apart at the same time and travel toward each other. One train travels at 70 miles per hour
cricket20 [7]
S=d/t     ⇒d=s*t
s=speed
d=distance
t=time

The first train :
d=x

x=70 miles/h*t                             ⇒   x=70t  (1)

The second train
d=360 miles - x

360 miles - x=80 miles/h*t          ⇒360-x=80t   ⇒ x=360-80t   (2)

therefore, with the equations (1) and (2) we have a systeme of equations:

x=70t
x=360-80t

we can solve this system of equations by equalization method.

70t=360-80t
70t+80t=360
150t=360
t=360/150=2.4     (≈2 hour  24 minutes)

Answer:  the first train meet with the second train in 2 hour 24 minutes. 


3 0
3 years ago
Read 2 more answers
What is the distance between (10, 6) and (-2, -3)
Helga [31]

Answer:

15 units.

Step-by-step explanation:

The distance between the points (x1, y1) and (x2, y2) is

√(x1-y1)^2 + (y1-y2)^2))

So here it is:

√(10- -2)^2 + (6- -3)^2)

= √(144+81)

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4 0
3 years ago
What is the height to 315 f the length is 7 and the width 4
Pachacha [2.7K]

the height is 11.25 because 7×4=28×11.25=315

8 0
3 years ago
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