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Gnom [1K]
3 years ago
9

80,673,854 in expanded form

Mathematics
1 answer:
stiv31 [10]3 years ago
8 0

8398.21

make sure you add the 80 then divide 673 & u add 2 cakes and see how many cupckakes sally has all together and that's the answer.

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9. An angle is 9 less than twice its supplement. Find the measure of the supplement.​
erastovalidia [21]

The measure of the supplement angle is 63°

Step-by-step explanation:

If two angles are supplementary then the sum of their measures is 180°

The given is:

  • Two supplementary angles
  • One of them is 9 less than twice its supplement

We need to find the measure of the supplement

∵ The two angles are supplementary

∴ The sum of their measure is 180°

Assume that the measure of the supplement angle is x°

∵ An angle is 9 less than twice its supplement

- twice means times 2 and 9 less means subtract 9

∵ The measure of the supplement is x°

∴ The measure of the angle = (2x - 9)°

∵ The sume of the measures of the two angles = 180°

∴ (2x - 9)° + x° = 180°

- Add like terms

∴ (2x + x) - 9 = 180

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- Add 9 to both sides

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- Divide both sides by 3

∴ x = 63°

The measure of the supplement angle is 63°

Learn more:

You can learn more about supplementary angles in brainly.com/question/11175936

#LearnwithBrainly

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