CookieGirl
  • CookieGirl
Please help i will give you a medal! :D Which expressions are equivalent to the expression 20 ÷ (4 – 2)? Choose exactly two answers that are correct. A. 8 + 12 ÷ 2 B. 14 – 8 ÷ 2 C. 2 • (7 – 4) D. 16 – 14 ÷ 2 + 1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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welshfella
  • welshfella
what does 20 / (4 - 2) equal? work out what is in the parentheses first
CookieGirl
  • CookieGirl
10?
welshfella
  • welshfella
yes now work out the 4 options and see which of these also equal 10 remember the order of operations.

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CookieGirl
  • CookieGirl
umm ok thanks....
welshfella
  • welshfella
for example A:- do the division first
welshfella
  • welshfella
8 + 12 / 2 = 8 + 6
CookieGirl
  • CookieGirl
its 14
welshfella
  • welshfella
- so A is not = to 10.
welshfella
  • welshfella
yes so you can cross off A
CookieGirl
  • CookieGirl
and B is 3 so its not B either
CookieGirl
  • CookieGirl
so its C and D?
welshfella
  • welshfella
No B is not 3 DO the DIVISION first.
CookieGirl
  • CookieGirl
I did....
welshfella
  • welshfella
i mad a mistake like that earlier on!
welshfella
  • welshfella
14 - 8 / 2 = 14 - 4
CookieGirl
  • CookieGirl
so its B and D?....
welshfella
  • welshfella
yes
CookieGirl
  • CookieGirl
Thanks for your help...
welshfella
  • welshfella
yw

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