Wilma can mow the lawn in 4 hours. If Kyle helps her with another mower, the lawn can be mowed in 3 hours. How many hours would it take Kyle if he worked alone?

12 hours

Step-by-step explanation:

Let w = Wilma alone

Let k = Kyle alone

Let t = Working together

Given the following data;

Time it took Wilma = 4 hours

Time it took them together = 3 hours

Time it took Kyle = x

To find the time it will take Kyle, we would use this arithmetical expression;

Substituting into the equation, we have;

Lowest common denominator (LCD) = 12x

Multiplying all through by "12x" we have;

Simplifying the equation, we have;

Rearranging the equation, we have;

x = 12 hours.

Therefore, it would take Kyle 12 hours to mow if he worked alone.

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?