Answer:
y=7/20
Step-by-step explanation:
7y*38=93
divide 38 on both sides this cancels out the 38 on the left side
this gives you
2.45
then divide 7 from both sides.
this gives you roughly 7/20
Answer:
115 bacteria
Step-by-step explanation:
The function that gives the number of bacteria in a science experiment is:
f(x) = 30(1.4)^x
Where x is the number of days
After 4 days (x = 4), the number of bacteria will be:
f(4) = 30 * (1.4)^4
f(4) = 39 * 3.8416
f(4) = 115.248 = 115 (To the nearest whole number)
The number of bacteria after 4 days is 115.
Answer:
Step-by-step explanation:
-7 + 47=40
Answer:
x=32
Step-by-step explanation:
x+12=x+11+33
x+12=44
x=44-12
x=32
To solve an addition problem, you simply add one number to the other. For example,
If I want to add 4 to 5, I would write the equation 4 + 5 = 9.
To solve a subtraction problem, you simply take a number away from another. For example,
If I want to take 5 away from 9, I would write the equation 9 - 5 = 4.
Hope I helped! :)
