Ming earns $35 washing 7 windows. At this rate, how much does Ming earn washing 8 windows?
2 answers:
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Answer:
The answer is 4
Step-by-step explanation:
Given,
Now, the expression
∴
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We substitute the given into the equation
given: a=-1, b=2, c=
=(
-1
=
-1
=
-1
=
-1
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:
=-2.5
Equation=-2.5-1=-3.5
OR Common Denominator:
=
×
(denominator should be -2=common)
=+
=
which also = to -3.5
given: a=-1, b=2, c=
=(
=
=
=
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:
Equation=-2.5-1=-3.5
OR Common Denominator:
=
=
=
which also = to -3.5