The math club is baking pies for a bake sale. the fruit-pie recipe calls for twice as many peaches as nectarines. if it takes a total of 168 pieces of fruit for all pies, how many nectarines are needed?

56 number of  Nectarines are needed

Step-by-step explanation:

Let  number of Fruit-pie be x and  number of nectarines be y.

Since the fruit pie recipe calls for twice as many peaches as nectarines.

then we have,

It is also given that total of 168 pieces fruit for all pies.

⇒

Substitute x=2y in above equation to solve for y:

  or

3y=168

Divide both sides by 3, we get

Simplify:

y = 56

Therefore, 56 nectarines are needed.

so what is the question

step-by-step explanation:

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)