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seraphim [82]
3 years ago
9

How do you write 66,000 in scientific notation?

Mathematics
2 answers:
brilliants [131]3 years ago
5 0
6.6 x 10⁴ is the answer.
Serjik [45]3 years ago
4 0
The scientific notation is 66∈³ 
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A washer and a dryer cost $587 combined. The washer costs $63 less than the dryer. What is the cost of the dryer?
Ghella [55]

Answer:

The dryer costs $325.

Step-by-step explanation:

Let <em>w</em> represent the cost of the washer and <em>d</em> represent the cost of the dryer.

They cost $587 combined. In other words:

w+d=587

The washer costs $63 less than the dryer. Therefore:

w=d-63

Thus, we have the system of equations:

\displaystyle \begin{cases} w+d = 587 \\ w=d-63\end{cases}

We can solve it using substitution. Substitute the second equation into the first. Hence:

(d-63)+d=587

Combine like terms:

2d-63=587

Add 63 to both sides:

2d=650

And divide both sides by two. Hence:

d=325

The dryer costs $325.

Further Notes:

And since the washer is $63 less, the washer costs:

w=(325)-63=262

The washer costs $262.

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3 years ago
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Answer:

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Step-by-step explanation:

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