So basically, the first question after the word problem is asking you to write an equation to represent the value of Mama's car after a certain amount of years (t). Since the value of her car decreases by 3% each year, you could multiply 3% by the original value of her car, to find what 3% is, OR you could subtract 19,400 (the value of her car after 1 year) from 20,000 INSTEAD of multiplying 20,000 by 3%.
Equation: value=20,000 - 600t
To answer the next question, just plug it into the equation you created.
500<20,000 - 600t
-19500< -600t
32.5>t
Final Answer: It would take at least 32 and 1/2 years for the value of Mama's car to be less than $500.
Hope this helps!! :)
Answer:
X=23(x2cookies per student)-12cookies
X=46-12cookies
X=34cookies
Where X is the additional amount of cookies to be baked.
Let X be the number of heads that come up
Step 1: Write out the formula for the binomial probability distribution
Distribute
(3/4)(4c)+(3/4)(16)=2c/9
3c+12=2/9 c
Now subtract 2/9 c from both sides
3c+12-2/9 c=2/9 c-2/9 c
25/9 c+12 =0
Now we need to subtract 12 from both sides
25/9 c+12-12=0-12
25/9 c=-12
Just multiply both sides by 9/25 so we find the value for c
25/9 *(25/9 c)=-12(9/25)
c= -108/25
I hope that's help:0
