write an equation to represent the relationship "a number decreased by negative 7 is the same thing as 48
2 answers:
Answer:
Step-by-step explanation:
We have to write an equation to represent the relationship "a number decreased by negative 7 is the same thing as 48
Let the unknown number be x.
A number decreased by 7 =
Since this equals 48, algebraic equation would be
Note: We can solve this by adding 7 to both sides to get x=55
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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.
And that is how you get your answer
