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sweet [91]
3 years ago
8

How can you express 499 to find the product 499×5 using mental math explain

Mathematics
2 answers:
Marysya12 [62]3 years ago
6 0

Answer:

So the answer would be 2495.

Step-by-step explanation:

We can write 499 as  500 - 1

Because we can easily multiply 500 to 5 compare to 499 to 5.

So product of 499 × 5 = (500 - 1) × 5

                                  = 500 × 5 - ( 1 × 5 = 5 )

                                  = 2500 - 5 = 2495

So the answer would be 2495.

Hoochie [10]3 years ago
3 0
499 = 500 - 1
(500-1)(5) = 2500 -5 = 2495

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Write an exponential function to model the situation. A population of 470 animals decreases at an annual rate of 12%.
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\bf \qquad \textit{Amount for Exponential Decay}
\\\\
A=P(1 - r)^t\qquad 
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NNADVOKAT [17]

Answer:

The numbers that meet these conditions are -3, -2 and -1.

This means that the wording of the question is somewhat ambiguous:

The <em>lowest</em> of the three numbers is -3.

The <em>smallest</em> however is -1.

You may need clarification on which of those is being asked for.

Step-by-step explanation:

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2) We're looking for three consecutive integers, which means that we can define them with a single variable.  If the smallest one is a, then the others are a + 1 and a + 2.

We can take those and put them together, giving us the equation:

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3 0
3 years ago
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