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Sophie [7]
2 years ago
7

If a+b=6 and ab=9 find the value of a3+b2​

Mathematics
1 answer:
dsp732 years ago
6 0
15. If a+b=6 and ab=9 that means a and b must each equal 3. Then plug it into the equation and solve. (3)3+(3)2 = 15
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Jerry is a judge. He hears 5 cases in 2 3/8 hours. How many cases does he hear per hour
Serggg [28]

Answer:

Jerry does 2.11 cases per hour (Rounded to 2 decimal places). As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.

Step-by-step explanation:

to find the number of cases per hour, we have to divide the number of cases by number of hours taken for those cases,

Number of cases per hour = \frac{5cases}{2\frac{3}{8} hours}

                                             =\frac{5}{\frac{19}{8} } \\ cases per hour

                                             =\frac{5*8}{19} cases per hour

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As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.

4 0
3 years ago
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Zinaida [17]

Answer:

<h2><u><em>80</em></u></h2>

Step-by-step explanation:

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400 : 100 * 20 =

4 * 20 =                                    

<h2><u><em>80</em></u></h2>

                                       

6 0
2 years ago
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zvonat [6]

Answer:

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Step-by-step explanation:

It's the only one that really makes sense.

Hope this helped :)

6 0
3 years ago
Read 2 more answers
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