Answer:
y= 4.25x + $10
Step-by-step explanation:
A tool rental shop charges a flat fee of $10.00 to rent out their chain saw
An amount of $4.25 is charged for each of the days
Let x represent the amount that is charged for each day
Let y represent the total cost of the chain saw
Since the rental fee for each day is given as $4.25 and the flat fee is given as $10 then, the equation can be expressed as
y= $4.25x + $10
Hence the equation that expresses the cost y of renting this saw if it is rented for x days is y= $4.25x + $10
This is a linear equation or y=mx+c. Where y is the number of mosquitos at a particular month and x is the number of months. We know the initial population of the mosquitoes is c=20. They population doubles every month so this is the gradient, m=2. Therefore the equation for the growth of the mosquito population is:
y = 2x + 20.
So after x= 10 months the mosquito population will be,
y=2(10)+20= 40.
There will be 40 mosquitoes after ten months.
Answer:
2y - 9
Step-by-step explanation:
number = y
2 × y - 9
2 × y can be simplified to 2y.
2y - 9
Answer:
2
Step-by-step explanation:
this is the sum of the two functions:
(g + h)(x)= -x - 3 + x + 5
(g + h)(x)=2
That's already in gradient-intercept form, EXCEPT that we typically write such an equation with y positive.
So we'd geet y = -x - 1 (answer)
Note that "gradient" means "slope" here. The slope is -1 and the y-intercept is also -1.
