Question

Which expressions are equal to 7(53)? Select all that apply.

7(50 + 3)
(7)(50)(3)
(7 + 50)(7 + 3)
7(50) + 7(3)
371

Answer 1

7(50 + 3)

7(50) + 7(3)

371

Explanation:

7(53)

50 can be written as (50 + 3)

∴7(53) = 7(50 + 3)

Proceeding with the above expression we get;

7(53) = 7(50 + 3)

= 7(50) + 7(3)

Completing the above expression we get;

7(53) = 7(50) + 7(3)

= 350 + 21

= 371