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Nesterboy [21]
3 years ago
13

I need help with this question please​

Mathematics
1 answer:
Art [367]3 years ago
8 0

9514 1404 393

Answer:

  77

Step-by-step explanation:

The sum of the measures of the two given arcs is 180°, the measure of semicircle ADC. Using this fact, we can find x and the measure of DC.

  AD +DC = 180

  (19x -49) +(5x +37) = 180

  24x = 192 . . . . . . . . . . . add 12, simplify

  x = 8 . . . . . . . . . . divide by 24

Then the measure of DC is ...

  DC = 5x +37 = 5(8) +37 = 40 +37

  DC = 77

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Samuel spent $16 for 4 erasers and 2 pencils. Alva spent $10.50 for 3 erasers and 1 pencil. How much does 5 erasers and 3 pencil
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Step-by-step explanation:

Let E = Erasers and P = Pencils

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3 0
3 years ago
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Can someone solve this so that i can confirm that I’m doing it right?
Svetach [21]

Answer:

Below in bold.

Step-by-step explanation:

x /18 = 12/10

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= 21.6.

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