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Fittoniya [83]
3 years ago
9

I need to find and write the equation for the problem.

Mathematics
2 answers:
Julli [10]3 years ago
7 0
0.8p - 50 < = 150
0.8p < = 150 + 50
0.8p < = 200
p < = 200/0.8
p < = 250

the reason I set it up this way is because when it is 20% off, u r actually paying 80% of the original price (p)....80% of the original price is written as 0.8p...then u subtract ur 50 dollar discount coupon...- 50.....and if all she can spend is 150....it would be less then or equal to 150. So the most she can spend on the phone is 250

Firdavs [7]3 years ago
7 0
(p-20/100p)-50 =80/100p-50 =4/5p-50
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What is the perimeter of triangle ABC? Round each step to the nearest tenth. Please help me
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I would use the pythagorean theorem to find the lengths of each side. a² + b² = c².

Side AB is one we're looking for. If you make other right triangle with that same side you can see that one length is 4 and the other is 3. So, 4² + 3² = c² → 25 = c² → 5 = c. Side AB is length 5.

Side AC is another. Do the same with that side and you get that one length is 4 and the other is 3. (This is the same one as above) so side AC is length 5.

Side BC is the last one. One of the lengths is 1 and the other is 1 → 1² + 1² = c² → 2 = c² → 1.414213562 = c so side BC is approximately length 1.41.

Add each length up and you get a perimeter of roughly 11.4

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4 years ago
What is the slope of a line that is perpendicular to the line with equation 12x+3y=9?
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Answer:

Step-by-step explanation

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