The left 8 represents 8000 units.
The right 8 represents 8 units.
Their placement in the number is used to signify the multiplier for the number of units they represent. That is why the number system is called a "place value number system." Each time the digit is moved left one place, its value increases by a factor of 10.
Answer:
(a) 
(b) 7 hours.
Step-by-step explanation:
(a) Let x be the number of hours and y is the total cost.
We have been given that Beatrice and her friends charge $8 per hour of babysitting, so the charges for x hours of babysitting will be 8x.
As they also charge a mandatory $5 per day fee for each child for snacks, so the total charges for babysit each day will be charges for x hours of babysitting plus mandatory charge.
We can represent this information in an equation as:

Therefore, the equation
represents the total cost of using Beatrice’s babysitting service each day.
(b) To find the number of hours Beatrice babysit the daughter, we will substitute y = 61 in our equation and solve for x.

Let us subtract 5 from both sides of our equation.


Let us divide both sides of our equation by 8.


Therefore, Beatrice babysit 7 hours the daughter.
Expression for part c is missing.
Answer:
51 to 6
Step-by-step explanation:
Answer:
(5x+3)/((2x-3)(x+2)) = 3/(2x-3)+1/(x+2)
Step-by-step explanation:
Let
(5x+3)/((2x-3)(x+2)) = A/(2x-3)+B/(x+2)
5x+3=A(x+2)+B(2x-3)
5x+3=x(A+2B)+(2A-3B)
comparing x:
5=A+2B ... (1)
comparing constant:
3=2A-3B ... (2)
By solving:
A=3, B=1
(5x+3)/((2x-3)(x+2)) = 3/(2x-3)+1/(x+2)
Answer:
1
Step-by-step explanation figure it out yourself di//ckkk/