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dybincka [34]
3 years ago
5

Jessica scores 1825 on the sat. ashley scores 28 on the act assuming that both tests measure the same thing who has the higher s

core report the z-scores for both students
Mathematics
1 answer:
SOVA2 [1]3 years ago
5 0
<span>With 1026 being the mean score on the SAT and StDev of 209, Jessica has a score of 799/209 z-scores above the mean. Her z-score would be 3.823. The mean of the ACT and StDev are 20.8 and 4.8, respectively. A 28 ACT score would be 7.2/4.8 z-scores above the mean, for a z = 1.500. This means that Jessica has the higher z-score.</span>
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Ravi has 33 marbles his brother has twice as many how many marbles do they have all together​
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6 0
3 years ago
It’s due tomorrow plz HELP
Vikentia [17]

1)

\dfrac{3}{4}  + 5 -  \dfrac{1}{2}  = \dfrac{3}{4}  +  \dfrac{20}{4} -  \dfrac{2}{4}  =  \dfrac{21}{4}  = 5 \dfrac{1}{4}

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\dfrac{2}{3}  +  {2}^{3}  -  \dfrac{1}{3}  =  \dfrac{2}{3}  +  \dfrac{24}{3}  -  \dfrac{1}{3}  =  \dfrac{25}{3}  = 8 \dfrac{1}{3}

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- 7x - 2 - 9y + 10x = 3x - 9y - 2

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14 + x = 18 \\ x = 18 - 14 \\ x = 4

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7 0
3 years ago
No links or files please
Cerrena [4.2K]

The guy who links files is pretty annoying amiright...

Divide 18/35 by 3/5 to get your answer. You can also multiply 3/5 by 35/18.

5 goes into 35 7 times, so cross out the 5 and 35 and put 1 and 7. 3 goes into 18 6 times, so cross out the 3 and 18 and put 1 and 6.

Now you have 1/1 times 7/6. Your answer is 7/6.

6 0
2 years ago
The ratio of boys to girl in a certain class is 4:7. if there are 33 students in the class, how many of them are girls.
Elden [556K]
Your answer is that 21 are girls
7 0
3 years ago
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