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JulsSmile [24]
3 years ago
8

Pairs of expressions are given. Select the pairs that are equivalent .

Mathematics
1 answer:
mafiozo [28]3 years ago
4 0

Answer:

All the options are correct

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13. What is the result of adding 5.4a + 7.1 and -1.28 - 6.3?
den301095 [7]

Answer:

C. 4.2a + 0.8

Step-by-step explanation:

Given:

The two binomials given for addition are:

5.4a+7.1 and -1.2a-6.3

Now, adding both the binomials, we get:

5.4a+7.1+(-1.2a-6.3)

Distributing the positive sign inside the second binomial, we get:

5.4a+7.1-1.2a-6.3

Now, combining like terms using the commutative property of addition, we get:

(5.4a-1.2a)+(7.1-6.3)

Simplifying the above expression, we get:

(5.4-1.2)a+0.8\\4.2a+0.8

Therefore, the resulting addition of the given binomials is 4.2a+0.8

Hence, option C is the correct answer.

8 0
3 years ago
Order of Operation
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x=hours

7 hours

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2 years ago
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A book exhibition was held for four days in a schoolthe number of tickets sold at the counter on the first secend third and four
bija089 [108]

Answer:

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Step-by-step explanation:

From the question we know that:

the number of tickets sold at the counter on

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Second day = 1812 tickets

Third day = 2050 tickets

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The total number of tickets sold on all the four days is calculated as:

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= 7707 tickets

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