sophiamonique sophiamonique

12-12-2014
Mathematics

Answered

Which placement of grouping symbols in the expression gives it a value of 6?

7 • 5 – 4 • 5 + 9

A.
7 • (5 – 4) • (5 + 9)

B.
7 • [(5 – 4) • 5] + 9

C.
7 • [5 – (4 • 5) + 9]

D.
(7 • 5) – [(4 • 5) + 9]

Answer :

23maorroam 23maorroam

12-12-2014

D.
Because if you use order of operations (PEMDAS), you would get 35 – [20 + 9] = 35 – 29 = 6
hope that helps:)

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12-12-2014

The answer is D.
Hope I helped! :-)

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