Write 7,800 in expanded form
2 answers:
You might be interested in
ANSWER
Both
are rational.
EXPLANATION
Recall that, a rational number can be written in the form
and also, a and b, are integers.
This means that, if the expression can be written as a common fraction, then it is a rational number.
Let us see whether we can rewrite the given expressions as common fractions.
also,
Therefore the given expressions are all rational.
The correct answer is A.
Both
are rational.
EXPLANATION
Recall that, a rational number can be written in the form
and also, a and b, are integers.
This means that, if the expression can be written as a common fraction, then it is a rational number.
Let us see whether we can rewrite the given expressions as common fractions.
also,
Therefore the given expressions are all rational.
The correct answer is A.
one way is to factor the expressions
(a)
(1.2 + (5.35 ×
))
= (1.2 + 53.5)
= 54.7 × = 5.47 ×
×
= 5.47 ×
(b)
((6.91 ×
) + 2.4)
= (69.1 + 2.4)
= 71.5 × = 7.15 ×
×
= 7.15 ×
(c)
((9.7 ×
) + 8.3)
= (97 + 8.3)
= 105.3 × = 1.053 ×
×
= 1.053 ×
(d)
((3.67 ×
) - 1.6)
= (36.7 - 1.6)
= 35.1 × = 3.51 ×
×
= 3.51 ×
(e)
((8.41 ×
) - 7.9)
= (84.1 - 7.9 )
= 76.2 × = 7.62 ×
×
= 7.62 ×
(f)
((1.33 ×
) - 4.9 )
= (13.3 - 4.9) = 8.4 ×