Answer:
Step-by-step explanation:
$ 6.18 is what each pen costs
Answer:
x = -80
Explanation
-40 divided by 1/2 is -80
Answer:
The minimum score needed to be in the top 2% of the scores on the test
is n = 10,00,000
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
Mean of the Population = 110
Standard deviation of the Population = 20
The estimated error = 2% = 0.02
<u><em>Step(ii)</em></u>:-
The estimated error is determined by


⇒ 
Squaring on both sides, we get
n = 10,00,000
The minimum score needed to be in the top 2% of the scores on the test
is n = 10,00,000
Answer:
descarga la aplicación photomath
Answer:
12 wooden rulers
23 plastic rulers
Step-by-step explanation:
Total rulers sold - 35
Total profit - $82
1 wooden ruler - $3
1 plastic ruler - $2
$3 x 12 = $36
$2 x 23 = $46
$46 + $36 = $82
12 + 23 = 35 rulers