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3 years ago

Which set of real numbers contains 23 and .45?

Mathematics

1 answer:

kiruha [24]3 years ago

8 0

Answer: Rational Numbers

Step-by-step explanation: A rational number is any number that can be written as a fraction therefore 23 and .45 would be considered rational numbers.

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3 years ago

Which number is greatest? 2.89 times 10 Superscript negative 8 1.997 times 10 Superscript 2 8.9 times 10 Superscript negative 6

love history [14]

<h3> The greatest number is $1.997 \times 10^2$ </h3>

<em><u>Solution:</u></em>

<em><u>Given that the numbers are:</u></em>

$2.89 \times 10^{-8}\\\\1.997 \times 10^2\\\\8.9 \times 10^{-6}\\\\5 \times 10^{-6}$

We have to find the number that is greatest

Convert the numbers to decimal

$2.89 \times 10^{-8} = 2.89 \times \frac{1}{10^8} =0.0000000289$

$1.997 \times 10^2 = 199.7$

$8.9\times 10^{-6}=8.9\times \frac{1}{10^6}=0.0000089$

$5\times 10^{-6}=5\times \frac{1}{10^6}=0.000005$

We can clearly see that, 199.7 is greatest number

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3 0

4 years ago

Read 2 more answers

Emma uses turquoise beads to make bracelets to sell at an event. The total amount Emma earns, y, is proportional to the number

NNADVOKAT [17]

<h3>The equation represents the total amount Emma earns at the event is y = 10x</h3>

<em><u>Solution:</u></em>

Given that,

<em><u>The total amount Emma earns, y, is proportional to the number of bracelets, x, she sells</u></em>

$y \propto x\\\\y = kx -------- eqn\ 1$

Where,

y is the total amount Emma earns

x is the number of bracelets

k is the cost of each bracelet

<em><u>Emma earns $10 for each sold bracelet</u></em>

Therefore, k = 10

Thus, eqn 1 becomes,

Thus the equation represents the total amount Emma earns at the event is found

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3 years ago

Read 2 more answers