Answer:
he types 375 words in 15 minutes.
Step-by-step explanation:
25x15=375
Answer:
7
Step-by-step explanation:
The circumference of a circle is given by
C = pi *d where d is the diameter
7 pi = pi *d
Divide each side by pi
7 = d
The diameter is 7
50 students preferred science...
Explanation:
we can consider the numbers 5 and 4 in the ratio as units
now we need to know how much each unit represent
units = 5 + 4 = 9
my sample = 90 students
each unit = 90/9 = 10 students
so each unit represents 10 students
back to the ratio
who preferred science = 5
who preferred English = 4
Number of students choose Science = 5 * 10 = 50
Dividing both numbers by 7a gives 2b, and 1.
Therefore the greatest common factor (GCF) is 7a.
