My pennies are worth as much as my nickels, my nickels are worth as much as my dimes, and my dimes are worth as much as my quarters. if the value of all these coins is $8, how many nickels do i have

40

Step-by-step explanation:

NOTE: Let TV represent "Total Value of"

TV Pennies + TV Nickels + TV Dimes + TV Quarters = $8.00

since TV Pennies = TV Nickels = TV Dimes = TV Quarters

then 4(TV Nickels) = $8.00

⇒         TV Nickels = $2.00     divided both sides by 4

since a nickel has a value of $0.05,

then $0.05x = $2.00   "x" represents the quantity of nickels

⇒                x = 40     divided both sides by $0.05

idk

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c