Paul paid $ 25.50 for 3 cups of hot chocolate and cups of tea. the cost of each cup of tea was 2/3 the cost of each cup of hoy chocolate. how much did each cup of hot chocolate cost?

Let the cost of one cup of hot chocolate  be = x

Let the cost of one cup of hot tea be = y

Paul paid $ 25.50 for 3 cups of hot chocolate and 4 cups of tea.

Equation becomes =   ...(1)

As given, the cost of each cup of tea was 2/3 the cost of each cup of hot chocolate.

  .... (2)

Putting the value of y from (2) in (1)

=

=

=

x=4.5

=

y =3

Hence each cup of hot chocolate is $4.50

Each cup of tea is $3.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316