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3 years ago

In the box below, enter the value that is missing from the table.

Mathematics

2 answers:

umka2103 [35]3 years ago

7 0

Answer:

the value that is missing from the table is 8.

Lerok [7]3 years ago

3 0

Answer: 8

Step-by-step explanation:

You might be interested in

The article "Chances are you know someone with a tattoo, and he's not a sailor" included results from a survey of adults aged 18

4vir4ik [10]

Answer:

a) 0.2

b) 0.28

c) 0.12

d) 0.7

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

We have the following table:

At Least One Tattoo No Tattoo

Age 18-29 126 324

Age 30-50 54 396

So in total, there are

126 + 324 + 54 + 396 = 900 people

(A) P(tattoo)

This is the probability that a randomly selected person has a tattoo.

Desired outcomes:

126 + 54 = 180

180 people have at least one tattoo

Total outcomes:

There are 900 people.

P(tattoo) = 180/900 = 0.2

(B) P(tattoo | age 18-29)

This the probability that a person aged 18-29 has a tattoo

Desired outcomes:

126 people aged 18-29 have tattoos

Total outcomes:

126 + 324 = 450 people aged 18-29

P(tattoo | age 18-29) = 126/450 = 0.28

(C) P(tattoo | age 30-50)

This the probability that a person aged 30-50 has a tattoo

Desired outcomes:

54 people aged 18-29 have tattoos

Total outcomes:

54 + 396 = 450 people aged 30-50

P(tattoo | age 18-29) = 54/450 = 0.12

(D) P(age 18-29 | tattoo)

The probability that a tattoed person is 18-29.

Desired outcomes:

126 tattoed people are 18-29

Total outcomes

126 + 54 = 180 tattoed people

P(age 18-29 | tattoo) = 126/180 = 0.7

3 0

4 years ago

To safely cross a bridge, the most a delivery truck can weigh is 4 tons. The empty truck and driver weigh a total of 5,690 pound

brilliants [131]

Answer:

Truck can safely carry 2310 pounds of cargo.

Step-by-step explanation:

Given the safety limit of weight to cross the bridge safely is 4 tons.

1 ton is equal to 2000 pounds.

so, 4 tons are equal to 2000 $\times$ 4 = 8000 pounds

Now, given that

weight of empty truck and driver = 5690 pounds

To find:

Weight of cargo that the truck can safely carry ?

Solution:

Total weight of the truck is actually the combined weight of the empty truck, the drive and the cargo carried in it.

So, Total Weight allowed = 8000 pounds = 5690 pounds + Weight of Cargo

Weight of Cargo = 8000 - 5690 pounds

Weight of Cargo = 2310 pounds

Truck can safely carry 2310 pounds of cargo.

7 0

3 years ago

I need help i do not understand this question

Anika [276]

Hello from MrBillDoesMath!

Answer:

Discussion:

-8 (17 - 12) / ( -2 (8 - (-2)) ) -

= -8 ( 5) / ( -2 ( 8+2)) as 17 -12 = 5 and -(-2) = +2

= -40/ ( -2 (10))

= -40/(-20) =

= +2

which is the third choice.

Thank you,

MrB

3 0

3 years ago

How many solutions does this linear system have?

DochEvi [55]

I hope this helps you

6x-4 (x+2)= -10x

6x-4x-8= -10

2x= 2

x= 1

y=1+2=3

4 0

3 years ago

Read 2 more answers

A family went out to eat. Below is the number of coen dogs tbat each of the four people ate. Find the mean absolute deviation (m

Alexxandr [17]

Answer:

1.25

Step-by-step explanation:

Give the data:

X : 1 1/2 ___ 0 _____ 4 ______ 2 1/2

Mean absolute deviation (MAD) :

Σ|x - xbar| ÷ n

xbar = Σx/ n

Σx = (1 1/2 + 0 + 4 + 2 1/2) = 8

xbar = 8/4 = 2

|x - xbar| :

|1 1/2 - 2|= 1/2

|0 - 2| = 2

|4 - 2| = 2

|2 1/2 - 2| = 1/2

Therefore,

MAD = (1/2 + 2 + 2 + 1/2) / n

MAD = 5/4

MAD = 1.25

4 0

3 years ago