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alexandr1967 [171]
3 years ago
8

The following are the ages (years) of 5 people in a room:

Mathematics
1 answer:
kiruha [24]3 years ago
4 0
Answer:

Explanation:

Let x be the age of the person who enter the room

(18 + 25 + 18 + 21 + 16 + x)/6 = 25
(77 + x)/6 = 25
77 + x = 25(6)
77 + x = 150
x = 150 - 77
x = 73
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Consider the linear expression 3x -15
Jobisdone [24]

Answer:

In linear expresiion 3 is the coefficient

X will be the variable and -15 will be the constant term.

5 0
3 years ago
A video game company is designing a game based on professional race cars. Professional race cars have a length of 570 cm and a w
siniylev [52]

Answer:

  A) 1/45

  B) 1/60

Step-by-step explanation:

<u>Part A</u>

The actual car has a length to width ratio of ...

  length/width = (570 cm)/(180 cm) = 57/18 = 3 1/6

The rectangle on the screen has a length to width ratio of ...

  length/width = (13 cm)/(4 cm) = 3 1/4

Relative to its width, the screen rectangle is longer than necessary for a model of the car. So, the scale factor will be determined by the width of the car relative to the width of the screen model.

For a model width of 4 cm, the scale factor is ...

  model/life-size = (4 cm)/(180 cm) = 1/45

__

<u>Part B</u>

For a model width of 3 cm, the scale factor is ...

  model/life-size = (3 cm)/(180 cm) = 1/60

7 0
3 years ago
205/1000 is less then are greater then 0.205
Schach [20]
Its equal to because 0.205 is 205/1000 as a fraction
4 0
4 years ago
Need help please and thank you
aksik [14]

A

graph A is the correct one

5 0
3 years ago
Solve for m. √m-7 = n+3 It is worth like 40 points
Katarina [22]

Answer:

sqrt of (m-7) = n+3

m = (n+3)^2 + 7 or m= n^2 + 6n + 16

sqrt of (m)-7 = n+3

m = (n+10)^2 or m =n^2 + 20n + 100

Step-by-step explanation:

(2) move the constants to the other side, and square

or  (1) square and move constants

then you can solve for m

7 0
3 years ago
Read 2 more answers
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