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eimsori [14]
3 years ago
13

A man bulds a model plane that is a scale model of an originalL The original plane is 150 feet in length. If the scale model use

s 4 inches for every 50 feet the model is H inches in length. Answer here​
Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0
The plane is 12 inches long.
150/50 = 3
3 x 4 = 12
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Ejiro is 8yrs older than her sister the sum of their ages is64yrs what is ejiro age in years​
Alika [10]

Answer:

36

Step-by-step explanation:

Ejiro + her sister's age = 64

Ejiro is 8 years older so (64 - 8) ÷ 2 = 28 her sister is 28 years old and ejiro is 28 + 8 = 36 years old

8 0
3 years ago
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Neporo4naja [7]
(2x² + 7x + 10) - (x² + 2x - 9) =
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(100 points!!!)
Sergio039 [100]

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Step-by-step explanation:

3 0
2 years ago
In 1997 there were 31 laptop computers at Grove High School. Starting in 1998 the school bought 20 more laptop computers at the
Kruka [31]

Using the linear equation, T = 20x + 31, the total number of computers at the end of 2005 is: C. 191.

<h3>How to Use a Linear Equation?</h3>

A linear equation is expressed as y = mx + b, where x is a function of y, m is the rate of change and b is the y-intercept or starting value.

In the scenario stated, we are given the linear equation for total number of laptop computers at the school after 1997 as, T = 20x + 31.

Rate of change = 20

y-intercept/starting value = 31

x = 2005 - 1997 = 8

To find the total number of laptop computers at Grove High School at the end of 2005 (T), substitute x = 8 into the equation, T = 20x + 31.

T = 20(8) + 31

T = 160 + 31

T = 191 computers.

Thus, total number of computers at the end of 2005 is: C. 191.

Learn more about linear equation on:

brainly.com/question/15602982

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7 0
1 year ago
Evaluate (6.1 x 10-3) (8 x 109). Write your answer in scientific notation and standard form.
DerKrebs [107]

Answer:

Scientific Notation: 4.88 ×10^7

Standard Form: 4.88 ×10^7

Step-by-step explanation:

6.1×10^(-3) = 0.0061

8×10^9 = 8000000000

0.0061×8000000000 = 48800000

= 4.88 \times  {10}^{7}

3 0
3 years ago
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