The number of cells of strain A follow the linear model
, where
denotes the number of cells of that strain and
is time in hours. Meanwhile, strain B follows
. The time
when both strains have the same number of cells is the intersection of these two lines, or the solution to
You have
so after 5 hours, both strains should have the same number of cells.
Multiple all by 7
2x +6=-2
2x = -2-6
2x = -8 /2
x = -4
Answer:
33
Step-by-step explanation:
To find the number of students, we must find out how many parts of a ratio are there.
7+4 = 11 parts
Then after finding the total parts, we know that the number of students must be a multiple of the total number of parts.
11 x 3 = 33
So, the total number of students is 33.
4 x 3 = 12 Boys
7 x 3 = 21 Girls.
Thank you.
No...............................
Answer:837
Step-by-step explanation: