Answer:
- Dien - 15 seconds, Jane - 10 seconds
Step-by-step explanation:
<u>Together:</u>
- 2/3 of pizza ⇒ 4 seconds
- Full pizza ⇒ 4 ÷ 2/3 = 6 seconds
Dien needs x seconds to eat pizza
Jane needs x - 5 seconds to eat pizza
<u><em>In one second, Dien can eat 1/x, Jane can eat 1/(x - 5), together 1/6 of a pizza</em></u>
- 1/x + 1/(x - 5) = 1/6
- x(x - 5) = 6(x + x - 5)
- x² - 5x - 12x + 30 = 0
- x² - 17x + 30 = 0
- (x - 15)(x - 2) = 0
- x = 15 (x = 2 is discounted as not realistic)
Dien can eat a pizza in 15 seconds, Jane can eat a pizza in 10 seconds
1. a. {-2, -1, 0}
2. d. all real numbers (i think)
3. d. all real numbers (i think)
EXPLANATION
Given the fractions:
1/8 and 3/7
In order to find the Common denominator we need to apply the prime factorization as follows:
Prime factorization of 8: 2*2*2
Prime factorization of 7: 7
Multiply each factor the greatest number of times it occurs in either 8 or 7:
= 2*2*2*7
Multiply the numbers: 2*2*2*7 = 56
So, the common denominator is 56
Answer:
read the explanation, i'm not gonna answer this one for you, but instead I want you to try this on your own.
Step-by-step explanation:
divide the 360 by each percentage, and if you dont know how to do that, there are videos out there, i <em>would</em> explain it <em>but </em>i dont have much time to write all of that. after you get each number from dividing 360 by each percentage <em>individually </em>you will add up the <u>needed</u> numbers. that will give you your answer! have a nice day :D
Original price: $
137.50
Discount percentage: 60
%
Results
Discount: $
82.5
Final Price: $
55
