## heyheuhru 3 years ago The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. What is the height of the loading dock DE?

1. heyheuhru

here is the ramp

2. heyheuhru

i c u

3. AriPotta

4. heyheuhru

so 12 /6.7?

5. AriPotta

no? what are you doing? lol. you should be cross multiplying

6. heyheuhru

i cros divided? idk i don't even know how to cross multiply

7. heyheuhru

I was in england visitng my grandma who has cancer and she um..died I was gone for like 2 and a half weeks from school

8. heyheuhru

so math is like really backed up

9. AriPotta

oh my. i'm sorry

10. AriPotta

you multiply in a cross kinda way. so 12(x) = 27(4)

11. heyheuhru

yeah but it's okayyy I just miss her anywaY i'm so confused

12. heyheuhru

then what do you do with the answers?

13. heyheuhru

so 108 and 12*x ??

14. AriPotta

12x = 108, then divide by 12 to get x = ?

15. heyheuhru

9!

16. heyheuhru

so x= 9?

17. AriPotta

yup

18. heyheuhru

gosh i feel simple

19. AriPotta

don't worry, i'm here to help (though i should be doing my own work). are you understanding things better?

20. heyheuhru

absolutely!

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