Sushil was thinking of a number. Sushil doubles it and adds 4.7 to get an answer of 77.8. Form an equation with x from the information.

Step-by-step explanation:

All you have to do is do the problem backwards.

For example, if your number is 1 then you add 4, double that, subtract 7, and you will get 3.

All the computer has to do is do the problem backwards.

3+7 (opposite of −7) is 10.

10÷2 (opposite of ×2) is 5.

−4 (opposite of +4) is 1, which was my original number.

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.