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fredd [130]
3 years ago
11

Sara can type 90 words in 4 minutes. About how many words would you expect her to type in 10 minutes at this rate?

Mathematics
2 answers:
Talja [164]3 years ago
5 0

Answer:

She can type 225 words in 10 minutes

Step-by-step explanation:

We can find the rate by dividing the number of words by the time

90 words/ 4 minutes

22.5 words per minute

Now  to find the number of words in 10 minutes, multiply the rate times the time

22.5 * 10 = 225

She can type 225 words in 10 minutes

bija089 [108]3 years ago
5 0

Answer:

225 words

Step-by-step explanation:

How many groups of 4 are in 10? 2.5 (4*2.5=10)

So, with this information, you know that you have to multiply 90 2.5 times. This equals 225.

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4/9 / 9/5= the answer is
mr Goodwill [35]

Answer:

  20/81

Step-by-step explanation:

Without parentheses, it is hard to tell what you are dividing. We assume you want ...

  (4/9)/(9/5)

Then ...

\displaystyle\frac{\left(\frac{4}{9}\right)}{\left(\frac{9}{5}\right)}=\frac{4}{9}\cdot\frac{5}{9}=\frac{4\cdot 5}{9\cdot 9}=\frac{20}{81}

_____

As written (without parentheses), your expression is evaluated left to right, so evaluates to ...

  4/(9·9·5) = 4/405

7 0
3 years ago
Express the number 20000 as a single digit integer times a power of 10
PolarNik [594]
The answer is 2 x 10^4 or 2 to the power of 4 (4th power) where;
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Expressing a number to a single digit integer times a power of 10 is also writing a number in scientific form,where the number is multiplied by 10 to nth "power". Scientific notation is also called standard index form whereby, too large or too big numbers.
In writing the scientific notation of a number it follows this form: m x 10^n ( m is multiplied to 10 to the power of n)  where, m, the coefficient, is the real number and n is the exponent integer.<span><span /></span>

3 0
3 years ago
Write 81.4 as a fraction.
Maslowich
407 over 5 but it also has to be simplified
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Complete the table to determine the amount of money that gabriella would recieve in exchange for 200 u.s dollars in each country
Anestetic [448]

Answer:

might wanna show us the table

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Find the measures of the exterior angles.
Nesterboy [21]

Answer:

The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles. (Non-adjacent interior angles may also be referred to as remote interior angles.) FACTS: An exterior ∠ is equal to the addition of the two Δ angles not right next to it.

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