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Romashka-Z-Leto [24]

3 years ago

8

sara buys a sweater at a department store. the sweater costs 30 the store is having a 25% off sale on everything enter the amoun

t of money in dollars sare saves from the sale do not consider the sales tax.

1 answer:

liraira [26]3 years ago

8 0

Sara is saving $7.5

Good luck!

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spin [16.1K]

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Find the length of side y

Serggg [28]

Answer:

$\large\boxed{y=76.3359\ cm\approx76.3\ cm}$

Step-by-step explanation:

Use cosine:

$cosine=\dfrac{adjacent}{hypotenuse}$

We have

$adjacent=73\ cm\\hypotenuse=y$

and the angle 17°.

$\cos17^o\approx0.9563$

Substitute:

$\dfrac{73}{y}=0.9563$ <em>convert the decimal to the fraction</em>

$\dfrac{73}{y}=\dfrac{9563}{10000}$ <em>cross multiply</em>

$9563y=730000$ <em>divide both sides by 9563</em>

$y=\dfrac{730000}{9563}$

$y\approx76.3359$

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3 years ago

Fleas reproduce at a rate of 29% per day. If there are 300 fleas now, how long until there are 1000?

fomenos

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11.49yrs

Step-by-step explanation:

300*29% = 87

87/ 1000 = 11.49 (symplified)

my answer may not be accurate but HEY! at least im trying.

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