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Serggg [28]
3 years ago
6

Who knows how to do this?? If so help

Mathematics
1 answer:
valina [46]3 years ago
8 0
1. The lowest test score is 79.
    The highest test score is 100.
     The range is 21.
2.  The median is 93.
3.  The median of lower half is 89.
4. The median of upper half is 96.
Hope this helped! :)
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4, because x= 4 is the maximum value taken by x.

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<span>Solution


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In a certain game, a player can solve easy or hard puzzles. A player earns 30 points for solving an easy puzzle and 60 points fo
Aleksandr-060686 [28]

Answer:  Second option.

Step-by-step explanation:

Let be "e" the number of easy puzzles Tina solved and "h"  the number of hard puzzles Tina solved.

Set up a system of equations:

\left \{ {{e+h=50} \atop {30e+60h=1,950 }} \right.

You can use the Eliminationn Method to solve this system of equations:

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Therefore, through this proccedure, you get:

\left \{ {-30e-30h=-1,500} \atop {30e+60h=1,950 }} \right.\\.........................\\30h=450\\\\h=\frac{450}{30} \\\\h=15

6 0
3 years ago
Could someone help me with this please and thank you!! <br> Will mark and star!!
timurjin [86]
The rule for expressing a radical as a rational exponent is as follows:
\sqrt[n]{x^y} = x^ \frac{y}{n}
So, to find \sqrt[3]{27x^2y^3z^4} use that rule.
The cube root of 27 is 3, so the equation will start with 3.
3x^ \frac{2}{3} yz^ \frac{4}{3}
Hope that helps!
8 0
3 years ago
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