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Svetradugi [14.3K]
3 years ago
10

How can you use the properties of operations to evaluate this expression? 18 + 4(28)

Mathematics
2 answers:
pentagon [3]3 years ago
5 0

Answer:

first open the bracket by multiplying 28 by 4 which is equal to 112, then add it to 18 which be equal to 130 which is the final answer

Annette [7]3 years ago
3 0

Answer:

130

Step-by-step explanation:

Recall that order of operations rules state that multiplication must be carried out before addition.

Thus, 18 + 4(28) = 18 + 112, after multiplying 28 by 4.

Next, combine these two constants:  18 + 112 = 130

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den301095 [7]

Answer:

x = 181 and y = 97

Step-by-step explanation:

let called the first number is x

the second number would be called y

We are given that:

x + y = 278 (1)

x = y + 84 (2)

Let change x in (2) into (1):

y + 84 + y = 278

2y + 84 = 278

Subtract 84 from both side, we got:

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y = 97

Because y = 97 and x + y = 278 so x would equal:

x + 97 = 278

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