625÷1/4= 156.25
25x2=50
156x2= 312
312.50= 312.5= 312 1/2
Answering your question on "9 students can make a poster in 10 hours. How many students should join them so that they all together can make this poster in 6 hours" its 13 students
Answer:
d. slope= -2 and y-intercept= 5
Step-by-step explanation:
i hope this helps :)
The required function is:
Option 3: 
Step-by-step explanation:
The initial value and rate is used to write exponential function
Here
Given
Initial value = 37
Rate = r = 5%
When the rate is 5%, the next year the quantity will be 1+0.05 = 1.05 time of the current quantity.
So,
The function can be written as:

For initial value, put t=0

Hence,
The required function is:
Option 3: 
Keywords: Functions, exponential functions
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