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balu736 [363]
3 years ago
6

Frank paid $22.40 for sweatshirt it had been discounted by 30%. What was the regular price of the sweatshirt?

Mathematics
1 answer:
ehidna [41]3 years ago
5 0
The original price would be $32.

If the original price marked down 30% is $22.40, than $22.40 must be 70% of some number.

22.40 is 70% of 32. 30% of 32 is 9.60.

If we deduct 30% ($9.60) from 32, we get $22.40, thus proving the answer is $32.

Hope this helps and please give me brainliest!
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if theta is in the first quadrant sin left parenthesis t h e t a right parenthesis equals 0.17 then what is tan left parenthesis
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The value of tan\theta in the first quadrant is approximately 0.173.

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Given sin \theta=0.17 and \theta is in the first quadrant.

We know from trigonometrical identities that

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Substituting the value of  sin \theta in the above equation we get:

or, (0.17)^2+cos^2\theta=1\\or,cos^2\theta=1-0.0289\\or.cos\theta=\pm\sqrt{0.9711}\\or,cos\theta=\pm 0.98544...

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From the properties of trigonometry we know that :

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7 0
2 years ago
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The two numbers are: 21 and 11

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