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motikmotik
2 years ago
7

3) Calculediferença entre as frações:a) 1/3 -4/5b) 20/9-30/5C) 2/3 - 3/5-5/7​

Mathematics
1 answer:
Taya2010 [7]2 years ago
7 0

Answer:

i dont know mabey someone else knows

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frosja888 [35]
I know its a long problem but i have to shiw how i got my answer.

4 0
3 years ago
A salesperson earns $450.20 per week plus 15% of her weekly sales. Which of the following describes the sales necessary for the
lapo4ka [179]
First we must construct an equation to model the problem. (In this case we will use an inequality instead) This is what I came up with:
         450.20+0.15s>=600.10

This equation shows how if her base earnings ($450.20) are added to 15% of her sales, represented by s, then the total will be greater than or equal to $600.10
Next, we simply solve for s. (steps shown below)

1) 450.20+0.15s>=600.10 (simply restating the inequality)
2) 0.15s>=149.90 (here I isolated the variable)
3)0.15s/0.15>=149.90/0.15 (Finally I solve for s by dividing both sides by 0.15, this will isolate s on the left and leave the answer on the right)
4) s>=999.33... (here I found the total sales the salesperson would need to reach his/her goal of earning a minimum of $600.10; the 3's after the decimal are repeating so in the next step I will round up to the nearest hundredth (b/c this is what money is rounded to and if I round down he/she would make less than her goal. This means i must round up.))
5) s>=999.34 (simple rounding; once again I rounded up b/c rounding down would slightly bring the total earnings to less than the goal)

<u>Therefore, the salesperson would need his/her sales to be $999.34 in order for his/her total earnings for the week to be at least $600.10</u> (greater than or equal to $600.10)

<u>Hope this helped!</u>
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3 years ago
Which scatter plot represents the data shown in the table?
svetoff [14.1K]
The answer would be A :)
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How many students were surveyed?<br>​
blondinia [14]

Answer:

20

Step-by-step explanation:

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1 year ago
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Answer:

Step-by-step explanation:

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