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KengaRu [80]
3 years ago
12

An ice cream parlor serves ice cream cones, milkshakes, and waffles with ice cream. The cost of an ice cream cone is $1.20, the

cost of a milkshake is $2.00, and the cost of a waffle with ice cream is $3.50. If 50% of the customers choose an ice cream cone, 30% choose a milkshake, and 20% choose a waffle with ice cream, what is the expected value of the cost of one item served at the parlor?
$0.99

$1.00

$1.90

$2.00
Mathematics
1 answer:
vivado [14]3 years ago
8 0
Expected value = Sum of Probability * Cost of each ice cream.

Expected value

=  50%* $1.20 + 30%* $2.00 + 2<span>0%* $3.50
</span>
=  0.50* $1.20 + 0.30* $2.00 + 0.2<span>0* $3.50
</span>
= $1.90

Expected value of the cost of one ice cream = $1.90 
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Answer:

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Step-by-step explanation:

I think

4 0
2 years ago
line 1 passes through (2,2) and (5,5). line 2 passes through (3,-6) and (-5,2). Are the lines parallel or perpendicular?
Gelneren [198K]
Find the slope of the first line, that is the difference of the y’s over the difference of the x’s. This way: 2-5/2-5=-3/-3 which equals 1
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3 0
3 years ago
Y=2x-5 and goes through the point (1,4)
Ne4ueva [31]

Step-by-step explanation:

plug in 1 and 4 for x and y

(4)=2(1)-5

then do the math

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6 0
2 years ago
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nadya68 [22]

Answer:

m<EAB=135

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m<FAD=30

m<EAF=90

180-90-30=60

m<EAC=60

180=60+5x+3x

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120=8x

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4 0
3 years ago
Uan earns $11 per hour and works at most 30 hours per week. Identify the independent and dependent quantity in the situation, an
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Answer:

hours worked; amount of money earned; 0 to 30; $0 to $330

Step-by-step explanation:

Let

y ----> the amount earned per week

x ----> the number of hours worked by week

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the amount earned per week (variable y) represent the dependent quantity

the number of hours worked by week (variable x) represent the independent quantity

therefore

The domain is the interval -----> [0,30] (the maximum number of hours per week is 30)

The range is the interval -----> [0,11*30] ----> [0,330] (the maximum amount earned per week is $330)

therefore

independent quantity is hours worked

dependent quantity is amount of money earned

domain is 0 to 30

range is $0 to $330

8 0
3 years ago
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