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ella [17]
3 years ago
13

Como resolver estas operaciones

Mathematics
1 answer:
Basile [38]3 years ago
4 0

Answer:

a) 64

b)11664

Step-by-step explanation:

Se tiene que seguir la jerarquía de operaciones y la ley de los signos. Primero resuelve lo que esta dentro de paréntesis. ejm:

a) 8+ (5+3)=

   8+(8)=

   8(8)=    (multiplicamos)

    64

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Answer:

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Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Joe buys groceries for his grandfather the groceries cost $42 plus 5% tax joe wants to know the total cost of the groceries incl
vekshin1
<h3>Answer: $44.10</h3>

====================================================

Work Shown:

5% = 5/100 = 0.05

5% of 42 = 0.05*42 = 2.10

tax = $2.10

total cost including tax = $42 + $2.10 = $44.10

----------

An alternative is to multiply 42 by 1.05 to get

1.05*42 = 44.10

We get the same answer. The 1.05 refers to 1 + 0.05 where the "1" is 100% and the 0.05 is 5%, so the two combine to 105%, meaning the total cost is 105% of the cost before tax is considered.

7 0
3 years ago
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Yuliya22 [10]

Answer:

r = 18

Step-by-step explanation:

r -8 = 10

r -8 + 8 = 10 + 8

r = 18

4 0
3 years ago
21. Melanie is making homemade stickers, She uses
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1: 5 2: 9 or 10

For question 1 we can round 115 to 100, 5x100 is 500 which is closer to 545 than 7x100 = 700.
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I agree with the second answer. Was this correct?



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