Answer:
Answer B.
Because we know He's checking the experiment every 5 minutes.
Answer: You can multiply the numerator and the denominator by 2.
Step-by-step explanation:
Equivalent fractions are those fractions that represent the same number.
To find an equivalent fraction of a determined fraction, you need to multiply the numerator and the denominator by the same number.
Knowing the fraction 
, where the numerator is 1 and the denominator is 4, you can multiply each one (the numerator and the denominator) by 2 to obtain an equivalent fraction.
Then:
Answer:
the calibration of the system
Step-by-step explanation:
7 mobiles
Answer:
25 students peer teacher, 22 students per tutor, 4 tutors for 81 students
Step-by-step explanation:
You need to find the unit rate,
for the teachers, to find the unit rate would be 125 divided by 5. For tutors it would be 88 divided by 4.
Then to find how many tutors you need for 81 students you would need 4 tutors because you want to divide 81 by the unit rate we got (22), and since the answer would be a decimal (3.68.....) you would need to round the whole number up to four because you cant have a decimal of a person.
