80%=.8
40*.8=32
32 people made their purchases with credit cards.
Answer:
Rational
Step-by-step explanation:
Rational number consists of
- Whole Numbers
- Natural Numbers
- Integers
- Negative Numbers
- Fractions
- Decimals
-5/6 is a Fraction and we can also simply it to a Decimal.
Hope this helps ;) ❤❤❤
The simplified fraction is .
Solution:
Given expression is
Let us first simplify the fraction in denominator.
To make the denominator same multiply and divide the 2nd term by x.
Substitute this in the given fraction.
Hence the simplified fraction is .
For 2x^2 + 3x = -1 => 2x^2 + 3x + 1 = 0 => a = 2, b = 3, c = 1
b^2 - 4ac = 3^2 - (4 x 2 x 1) = 9 - 8 = 1