2 years ago

In a file of 10 records with 2 errors, 5 are examined. Let the random variable be the number of errors.

1 answer:

8 0

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marshall27 [118]

Answer:

$\frac{1cm}{125 meters}$

Step-by-step explanation:

To find the scale, we write a ratio of $\frac{map}{real world}$ and simplify.

We know $\frac{map}{real world}=\frac{8cm}{1000 meters}$ .

We simplify to $\frac{1cm}{125 meters}$

8 0

3 years ago

natulia [17]

X=60
That’s the answer

What I did to get it
(3x-60)=120
+60. +60
3x =180
————. = 60
3

X=60

6 0

2 years ago

Inessa05 [86]

Number 4 is 66
Number 5 Iseconds 5.32

5 0

2 years ago

padilas [110]

3 0

3 years ago

Veseljchak [2.6K]

Answer:

Step-by-step explanation:

4r+9r-11r+7r

Combine like terms

13r -11r+7r

2r+7r

3 0

2 years ago

In a file of 10 records with 2 errors, 5 are examined. Let the random variable be the number of errors.​