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polet [3.4K]
3 years ago
5

I need to get this done as quick as possible. please help

Mathematics
1 answer:
ad-work [718]3 years ago
7 0
$5
——. = $2.50 per box
2 boxes
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You discovered 1000 grams of an unknown element called Coolium 23 that has a half life 23 days. How long will it take for you to
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Answer:

13.8 days

Step-by-step explanation:

In this case we can solve it by means of a rule of three, knowing the amount of life for 1000 grams, it must be proportional for 600 grams, like this:

grams   days

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x = 600 * 23/1000

x = 13.8

which means that for the 600 grams it would be an average life of 13.8 days.

4 0
3 years ago
Antoine has $13 in his checking account. He buys some school supplies and ends up with $5 in his account. what was the overall c
ladessa [460]
13-5 is how you would do this so your answer would be 8 :)
6 0
3 years ago
What is the difference between a rate and a unit rate? Show an example
QveST [7]

Answer:

Rate: In mathematics, a rate is the ratio between two related quantities in different units. If the denominator of the ratio is expressed as a single unit of one of these quantities. "The most common type of rate is "per unit of time."

Unit Rate: A unit rate is a rate with 1 in the denominator. If you have a rate, such as price per some number of items, and the quantity in the denominator is not 1, you can calculate unit rate or price per unit by completing the division operation: numerator divided by denominator.

Step-by-step explanation:

8 0
3 years ago
Can you please help me solve this equation
Pavlova-9 [17]
I think each girl had 8.1 points may be wrong

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Which is the value of the rational expression 6-x/x+5 when x=2
Allisa [31]

Answer:

4/7

Step-by-step explanation:

6-x/x+5 let us take x=2

6-2/2+5=4/7

8 0
3 years ago
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