First you have to change all the denominators to a common denominator.
So lets change them to 18!
3 1/6 = 3 3/18 8 2/9 = 8 4/18 1 1/2 = 1 9/18. Now add all the numerators of the fractions together that equals 16so your fraction is 16/18 Now add all your whole numbers together that equals 12. So now you have 12 16/18 now reduce to lowest terms equals 12 8/9
Answer: 895 phones
Step-by-step explanation:
Given that :
The function : y = 1.28e^1.31x ; is used to model the number of camera phones shipped since 1997
y = number of camera phones ; x = number of years since 1997
The number of camera phones shipped in the year 2002 can be obtained thus ;
x = 2002 - 1997 = 5 years
y = 1.28e^(1.31 * 5)
y = 1.28e^6.55
y = 1.28(699.24417)
y = 895.03254
y = 895 phones
OK, I will try my best to help you out, young lad. Just kidding, I am young too!
OK, so first you have to assign variables.
Let's make the first number = x-5
the second number is =x
Now, set up an equation
4(x-5)+5(x)=74
Use the distributive property to simplify the equation.
4x-20+5x=74
simplify the problem to find x
9x-20=74
9x=94
x=10.4 or 94/9
Now, apply the answer..
We know that the second number, x = 10.4 ( or 94/9), so the larger number is...
94/9 - 5= 49/4 of 5.4
so the answers are
first number= 5.4 (fraction form- 49/4)
second number= 10.4 (94/9)
Answer:
x = (1 ±√97)/4 ≈ {-2.21221, 2.71221}
Step-by-step explanation:
Multiply the equation by 12x to clear fractions.
12 = 2x^2 -x
6 = x^2 -1/2x . . . . . . divide by 2
6 +1/16 = x^2 -1/2x +1/16 = (x -1/4)^2 . . . . . add 1/16 to complete the square
±√(97/16) +1/4 = x . . . . . . square root and add 1/4
x = (1 ±√97)/4
x ≈ -2.21221, 2.71221