Kelvin spends 14 of his $100 on a ticket to a play and then buys a shirt for $22.50. How much of the $100 does Kelvin have left?
2 answers:
You might be interested in
Consider the contrapositive of the statement you want to prove.
The contrapositive of the logical statement
<em>p</em> ⇒ <em>q</em>
is
¬<em>q</em> ⇒ ¬<em>p</em>
In this case, the contrapositive claims that
"If there are no scalars <em>α</em> and <em>β</em> such that <em>c</em> = <em>α</em><em>a</em> + <em>β</em><em>b</em>, then <em>a₁b₂</em> - <em>a₂b₁</em> = 0."
The first equation is captured by a system of linear equations,
or in matrix form,
If this system has no solution, then the coefficient matrix on the right side must be singular and its determinant would be
and this is what we wanted to prove. QED
The correct answers are:
1. -13
2. 9
3. -2
4.
5. A. Rational Numbers
Hope This Helps!!!
Can I have Brainliest?