## BishopPatton one year ago What is the value of a2 + 3b ÷ c - 2d when a = 3, b = 8, c = 2, and d = 5 A. 11 B. 12 C. 10 D. 8

1. BishopPatton

@texaschic101

2. BishopPatton

@ganeshie8 @triciaal @nincompoop

3. BishopPatton

4. BishopPatton

5. misty1212

HI!! $a^2 + 3b ÷ c - 2d$$3^2 + 3\times8 ÷ 2 - 2\times 5$

6. BishopPatton

so what is the answer? I dont understand it.

7. triciaal

|dw:1443450369667:dw|

8. triciaal

|dw:1443450462074:dw|

9. BishopPatton

so what order do i solve it... i know PEMDAS

10. phi

If there are no parens in the original problem, you do not divide by (c-2d)

11. phi

misty substituted in the numbers for the letters $3^2 + 3\times8 ÷ 2 - 2\times 5$ PEDMAS says to do powers first do you see any powers?

12. phi

or should I say "exponents" ?

13. BishopPatton

Yes

14. phi

can you simplify 3^2 ?

15. BishopPatton

so i would do 3 * 3

16. phi

yes

17. phi

$9+ 3\times8 ÷ 2 - 2\times 5$ now do multiplies and divisions

18. phi

I would first tackle 3*8/2 notice the order does not matter: you can do 3*8 and then divide by 2 or you can do 3 * (8/2) either way what do you get ?

19. BishopPatton

9 + 24 ÷ 2 - 10 = 11

20. BishopPatton

24 ÷ 2 = 12 + 9 = 21 - 10 = 11

21. phi

yes, 9 +12 -10 we now just have addition (notice subtracting 10 is the same as adding -10) so we could write it like this 9 + 12 + -10 now we can do any order of adding up 9, 12, and -10

22. BishopPatton

Cool... Thanks soooooo much i wish i could give you 10000 medals

23. phi

yw