Which expression is equal to (7 * 2) 2? A)(7 + 2) × 2 B)(2×2)+7 C)7x(2 x 2) D)(2 x 7) + (2×2)

Question

Which expression is equal to (7 * 2) 2?

A)(7 + 2) × 2
B)(2×2)+7
C)7x(2 x 2)
D)(2 x 7) + (2×2)

in progress 0
1 month 2021-08-04T01:35:56+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-08-04T01:37:47+00:00

    Answer:

    C. 7 * (2 * 2)

    Step-by-step explanation:

    Figure out the original expression to see the equivalent expression.

    (7 * 2) * 2

    14 * 2

    28

    We have to look for an expression that equals 28.

    A is (7 + 2) * 2.

    (7 + 2) * 2

    9 * 2

    18

    A equals 18, so it’s not equivalent to the original expression.

    Now B, which is (2 * 2) + 7

    (2 * 2) + 7

    4 + 7

    11

    B equals 11, so it is also not equivalent.

    Now C; that is 7 * (2 * 2)

    7 * 4

    28

    C equals 28, so that is equivalent. Although we have found our answer, we need to make sure it’s right by evaluating D. ((2 * 7) + (2 * 2))

    (2 * 7) + (2 * 2)

    14 + 4

    18

    D, like A, equals 18, so it is also incorrect.

    C is the only expression that is equivalent to (7 * 2) * 2, so it is the answer.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )