## anonymous one year ago Question 2.2. The temperature of an oven went from 330° to 396°. What was the percent increase in temperature? (Points : 5) 2% 16.6% 20% 66%

1. perl

$$\Large \rm \left|\frac{new - original }{original }\right| \times 100 = Percent ~ Change$$

2. anonymous

can i give the direct answer

3. anonymous

or no

4. perl

better guide the student

5. anonymous

66

6. perl

sid thats incorrect

7. perl

$$\Large \rm \left|\frac{new - original }{original }\right| \times 100 = Percent ~ Change \\~\\~\\ \Large \rm \left|\frac{396 - 330 }{330 }\right| \times 100$$

8. anonymous

this is the worst subject i suck badly so i dont get it could you help me to understand it

9. perl

sure just do the division first

10. anonymous

first multiply each percentage by 396 and then the answer you get from multiplying subtract it

11. perl

$$\Large \rm \frac{new - original }{original } \times 100 = Percent ~ Change \\~\\~\\ \Large \rm \frac{396 - 330 }{330 }\times 100 \\~\\~\\ \Large \rm \frac{66 }{330 }\times 100$$

12. anonymous

for example

13. anonymous

20

14. perl

@unkownbeast911 to make your method work you have to multiply each percentage by 330, not 396

15. anonymous

oh ok

16. anonymous

Perl can you help me with some not telling me the answer but helping me understand it

17. perl

then subtract the result from 396, and see if it matches 330

18. perl

ok sid

19. anonymous

want me to open a new question or message ?

20. perl

lets open a new question

21. anonymous

ok

22. perl

in case i get disconnected, other people can help