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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Answer:
Abel receives $60, and Cedric receives $120
Step-by-step explanation:
Let Abel's share = A
Let Cedric's share = C
we are given the following
A + C = 180 - - - - - (1) (Abel and Cedric will share a total of $180)
(Abel will receive half as much as Cedric. )
from equation 2:
putting this value of C in eqn (3) into eqn (1)
A + (2A) = 180
3A = 180
∴ A = 180 ÷ 3 = 60
to find C, let us replace the value of A in eqn (3) with 60
C = 2A - - - - (3)
C = 2 × 60
C = 120
Therefore, Abel receives $60, and Cedric receives $120