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Select the expression that makes the equation true.

16 x (4.5 + 3) ÷ 10 = ___.
20.8 + (3 x 4) ÷ 4
24 ÷ (8 − 4) + 8.2
30 ÷ (15 ÷ 2.5) + 7
36 ÷ (9 − 4.2) + 3

1 Answer

3 votes

Answer:

30 ÷ (15÷2.5) + 7

Explanation:

Given: 16 · (4.5 + 3) ÷ 10= ____

First let us do PEMDAS (Parenthesis, Equation, Multiply, Divide. Add, Subtract) upon the given value.

16 · (7.5) ÷ 10 = ____

120 ÷ 10 = ____

= 12

We now understand that the given is equal to the value of 12, now we will calculate each equation with PEMDAS until we find the equivalent value.

20.8 + (3 · 4) ÷ 4 =

20.8 + 12 ÷ 4 =

20.8 + 3 =

= 23.8

24 ÷ (8 − 4) + 8.2 =

24 ÷ 4 + 8.2 =

6 + 8.2 =

= 14.2

30 ÷ (15 ÷ 2.5) + 7 =

30 ÷ 6 + 7 =

5 + 7 =

= 12

36 ÷ (9 − 4.2) + 3 =

36 ÷ 4.8 + 3 =

7.5 + 3 =

= 10. 5

It is safe to say the following:

16 · (4.5 + 3) ÷ 10 ≠ 20.8 + (3 x 4) ÷ 4

16 · (4.5 + 3) ÷ 10 ≠ 24 ÷ (8 − 4) + 8.2

16 · (4.5 + 3) ÷ 10 = 30 ÷ (15 ÷ 2.5) + 7

16 · (4.5 + 3) ÷ 10 ≠ 36 ÷ (9 − 4.2) + 3

Therefore, the answer is:

16 · (4.5 + 3) ÷ 10 = 30 ÷ (15 ÷ 2.5) + 7

Hope this helps =D, happy learning !

User Kicsi
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