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3 years ago

Briana buys a ring marked $49.99. She receives a 20% discount. Which equation can be used to find the sale price of the ring?

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

5 0

Answer B, s = 49.99(0.80)

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What’s the value of x? :/

kolbaska11 [484]

Answer:

$x = 27$

Step-by-step explanation:

According to congruent chords and arcs theorem, if $\overline{XY} \cong \overline{ZY}$ then $\arc{XY} \cong \arc{ZY}$ .

This means that $\arc{XY} = \arc{ZY} = (6x - 20) degrees$

Thus:

$\arc{XY} + \arc{ZY} + \arc{ZX} = 360$ (full circle = 360°)

$\arc{XY} = (6x - 20)$

$\arc{ZY} = (6x - 20)$

$\arc{ZX} = 76$

Plug in the values into the equation

$(6x - 20) + (6x - 20) + 76 = 360$

$6x - 20 + 6x - 20 + 76 = 360$

Add like terms

$12x + 36 = 360$

Subtract 36 on both sides

$12x = 360 - 36$

$12x = 324$

Divide both sides by 12

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3 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!! EXPLAIN TOO PLZ!

asambeis [7]

Ok so you would just take the two fractions and simply if needed and that the answer!

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3 years ago

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Plz, help!!!!! 15 pts

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