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lions [1.4K]
3 years ago
8

At city community college, every freshman must take English 101. The English department wants to know whether students who take

this class and their second semester get better grades than students who take the class in the first semester which principle of experimental design can the English department best used to include a variety of students in both the first and second semester treatment groups of the study
Mathematics
1 answer:
vesna_86 [32]3 years ago
8 0

Answer: randomization

Step-by-step explanation: apex

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12x - 24 + 3x = 1/3x + 4 + 10x plz no link or spam (i will report you)
Sphinxa [80]

Answer:

x=6

15x - 24 = 1/3x + 4 + 10x

=

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=

45x - 72 = 31x + 12

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45x - 31x = 12 + 72

=

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Cuanto es 15x6 y 7x8 y 9x3?
Nadusha1986 [10]
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LenKa [72]

Answer:

Step-by-step explanation:

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3 years ago
The cost of a parking permit consists of a one-time administration fee plus a monthly fee. a permit purchased for 12 months cost
julsineya [31]

let

x--------> the monthly fee

y--------> the administration fee

we know that

660=y+12x --------> equation 1

810=y+15x --------> equation 2

Multiply by -1 equation 1

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Adds equation 2 and equation 3

810=y+15x\\-660=-y-12x\\---------\\   810-660=15x-12x\\ 3x=150\\ x=50\ dollars

Find the value of y

660=y+12x\\ 660=y+12*50\\ y=660-600\\ y=60\ dollars

therefore

the answer is

the administration fee is equal to 60\ dollars

4 0
3 years ago
Read 2 more answers
Between which two consecutive integers does ???147 lie?
BartSMP [9]
If those question marks are supposed to be a radical, then 12 and 13. The square root of 147= 12.12, which puts it between 12 and 13. 
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