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Elza [17]
3 years ago
10

1.) Meaghan is thinking of a mystery number. She cuts it in half then adds 5 the result is 24 determine the mystery number

Mathematics
1 answer:
Igoryamba3 years ago
6 0

The answer to number 1 is subtract 5 from 24 to get 19, then multiply 19 by 2 to get 38 as your final answer. I hope this helps!


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Angle pwm is equal to angle pkm
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x+3 = 2(x-3) ... substitution

x+3 = 2x-6

2x-6 = x+3

2x-6-x = x+3-x .... subtract x from both sides

x-6 = 3

x-6+6 = 3+6 ... add 6 to both sides

x = 9

Use x = 9 to find the length of WM

WM = x+3 = 9+3 = 12

Which can be used to find the length of KM as well

KM = 2(x-3) = 2(9-3) = 2(6) = 12

both lengths are the same (12) as expected

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