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SpyIntel [72]
2 years ago
6

Hey, can anyone help me with part A??

Mathematics
1 answer:
LekaFEV [45]2 years ago
3 0

9514 1404 393

Answer:

  3.75 cm

Step-by-step explanation:

Corresponding sides are proportional.

  CD/BC = BC/AB

  CD = (BC)²/AB . . . . . multiply by BC

  CD = (6 cm)²/(9.6 cm) = (36/9.6) cm

  CD = 3.75 cm

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The sum of the number is 103.the second number is 4 times the third.the third number is 5 more then the first .what are the numb
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Answer:

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Step-by-step explanation:

let x-5 represent the first number, since the first number is 5 less than the third number. let x represent the third number. let 4x represent the third number, since it's four times greater than the third number.

set up an equation, and make it equal to 103:

x-5+x+4x=103

solve:

6x-5=103

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so, the third number is 18.

the first number is equal to x-5, so:

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the second number is equal to 4x, so:

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so, the three numbers are 13, 18, and 72.

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