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3 years ago

14

Denzel and three friends go to the movies. each person buys a movie ticket for $8, a snack for $4, and a drink for $2. which num

erical expression represents the total cost of the trip to the movies for denzel and his friends?

1 answer:

swat323 years ago

6 0

8(4) + 4(4) + 4(2)
32 + 16 + 8

^^ Either one of these two expressions can be written down and they'd both be right.

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ella [17]

Answer:9/4

Step-by-step explanation:

99/8*2/11=9/4*1/1=9/4

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damaskus [11]

Answer:

$z=\frac{24-40}{8}=-2$

$z=\frac{40-40}{8}=0$

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Step-by-step explanation:

For this problem we have the following parameters given:

$\mu = 40, \sigma =8$

And for this case we want to find the percentage of lightbulb replacement requests numbering between 24 and 40.

From the empirical rule we know that we have 68% of the values within one deviation from the mean, 95% of the values within 2 deviations and 99.7% within 3 deviations.

We can find the number of deviations from themean for the limits with the z score formula we got:

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$z=\frac{40-40}{8}=0$

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3 years ago

Determine the value of x, then y,and finally z

Monica [59]

28 + 39 + x = 180
67 + x = 180
x = 113

113 + y = 180
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3 years ago

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Slav-nsk [51]

Answer:

b= -3

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3b = -3 -7 +1

3b = -10+1

3b= -9

b = -9/3

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-3x = 7-1

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x= -6/3

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312 = -6*7x +6*3

312= -42x +18

312-18= -42x

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