Giuliana has 22 quarters and dollar coins worth a total of $10.75. which equation can be used to find d, the number of dollar coins giuliana has? d – 22 + 0.25d = 10.75 0.25d + 22 – d = 10.75 0.25(22 – d) + d = 10.75 d + 0.25(d – 22) = 10.75

C.

Step-by-step explanation:

Let d represent the number of dollar coins.

We have been given that Giuliana has 22 quarters and dollar coins. So number of quarter coins would be .

We know that value of a quarter is $0.25. So all quarter coins will be worth

We are also told that these coins worth a total of $10.75. This means that d dollar coins and worth 10.75. We can represent this information in an equation as:

Therefore, option C is the correct choice.

Upon solving our equation we will get,

\

Therefore, Guiliana had 7 dollar coins.

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

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: