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

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a