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10 votes
1/2(10x +5) what is the value of the expression when x=1.4

1 Answer

8 votes

Answer:

19.2

Explanation:

Rewrite 1/2(10x +5) as (1/2)(10x +5) for clarity.

Next, substitute 1.4 for x:

(1/2)(10[1.4] +5)

According to rules of operation, work inside parentheses must come before all else. Thus we obtain:

(1/2)(14+5), or (1/2)(19). Finally, this simplifies to 19/2.

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