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Whitepunk [10]
2 years ago
14

On a scale drawing of 1/2 inch = 3 miles on the drawing how many miles are represented by a line that is 4 1/2 inches long

Mathematics
2 answers:
VARVARA [1.3K]2 years ago
4 0
27 miles because one inch is 6 miles. 6x4 is 24 plus the half which is 27
Sophie [7]2 years ago
3 0
27 miles

Because if 3 miles = .5 inch —multiply that by 2 and you get 6.
Then multiply 6 (4) = 24
24+3 = 27 miles
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Pls pls help with this math
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Answer:

7, -1

Step-by-step explanation:

x^2 - 6x + 7 = 0

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24 is 25% of what number
mel-nik [20]
Let x be the mystery number
25% = 0.25

So, 24/x = 0.25 
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Simplify 4.2(2x-0.5y)-2(4.1x-0.3y)
klio [65]

Answer:

x = 7.5y

Step-by-step explanation:

Simplifying

4.2(2x + -0.5y) + -2(4.1x + -0.3y) = 0

(2x * 4.2 + -0.5y * 4.2) + -2(4.1x + -0.3y) = 0

(8.4x + -2.1y) + -2(4.1x + -0.3y) = 0

8.4x + -2.1y + (4.1x * -2 + -0.3y * -2) = 0

8.4x + -2.1y + (-8.2x + 0.6y) = 0

Reorder the terms:

8.4x + -8.2x + -2.1y + 0.6y = 0

Combine like terms: 8.4x + -8.2x = 0.2x

0.2x + -2.1y + 0.6y = 0

Combine like terms: -2.1y + 0.6y = -1.5y

0.2x + -1.5y = 0

Solving

0.2x + -1.5y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.5y' to each side of the equation.

0.2x + -1.5y + 1.5y = 0 + 1.5y

Combine like terms: -1.5y + 1.5y = 0.0

0.2x + 0.0 = 0 + 1.5y

0.2x = 0 + 1.5y

Remove the zero:

0.2x = 1.5y

Divide each side by '0.2'.

x = 7.5y

Simplifying

x = 7.5y

5 0
3 years ago
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