Well...what are the expressions and phrases???
M = y2-y1/x2-x1
M = 3-10/7-4
M = -7/3
1/2 y +6 = x
y=2 (x-6)
= 2x-12
f^-1 (x)= 2x-12
Answer:
Weight of a quarter = 6.25 grams
Weight of a dime = 2.5 grams
Step-by-step explanation:
The weight of a nickel is 80%
The weight of a quarter or the weight of a nickel is 5 grams or weight of a quarter =50.8 = 6.25 grams
Weight of a dime = 50% = 12 (weight of nickel) = 52 = 2.5 grams