Jalisa earned $71.25 today babysitting, which is $22.50 more than she earned babysitting yesterday. the equation d+22.50=71.25 can be used to represent this situation, where d is the amount jalisa earned babysitting yesterday. which is an equivalent equation that can be used to find the amount jalisa earned babysitting yesterday? (a.71.25 - 22.50=d) (b.71.25+22.50=d) (c. d+71.25=22.50) (d. d-22.50=71.25)

the equation which is equivalent   to find the amount jalisa earned babysitting yesterday is 71.25 - 22.50 = d and the amount jalisa earned yesterday is $48.75 .

option (a) is correct .

step-by-step explanation:

as given

jalisa earned $71.25 today babysitting, which is $22.50 more than she earned babysitting yesterday.

d is denoted the   amount jalisa earned babysitting yesterday.

the equation becomes

d + 22.50 = 71.25

d = (71.25 - 22.50)

d =   71.25 - 22.50

d = $ 48.75

therefore the equation which is equivalent   to find the amount jalisa earned babysitting yesterday is 71.25 - 22.50 = d and the amount jalisa earned yesterday is $48.75 .

option (a) is correct .

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step-by-step explanation:

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: