Answer:
A
Step-by-step explanation:
5a+4=9a+3-4a
5a-9a+4a=3-4
a=-1
Answer:
$6.83
Step-by-step explanation:
First calculate the before-tax total amount:
$0.75 + $0.75 + $0.75 + $4.25, or
3($0.75) + $4.25 = $2.25 + $4.25 = $6.50 (total before tax)
The before-tax total PLUS the 5% tax comes to:
$6.50 + 0.05($6.50) = $6.50 + $0.33 = $6.83
Letter a. 13 and 14 the two integers does the value of square root of 178.
Answer:
y= 
Step-by-step explanation:
To find inverse of something, just switch the variables
x=y^2
now try to solve back in terms of y
y= 
Answer:
<em>Cost paid daily when using the motorcycle: $37,</em>
<em>Cost paid for each kilometer driven in the motorcycle: $ 0.23 </em>
Step-by-step explanation:
<em>~ Let us first formulate the equations, provided x ⇒ cost paid daily when using the motorcycle, and y ⇒ cost paid for each kilometer driven in the motorcycle ~</em>
8x + 650y = 445.5, and 12x + 920y = 655.6
<em>Now let us solve this equation through elimination, by multiplying the first equation by 3, and the second by -2:</em>
3 ( 8x + 650y = 445.5 ) ⇒ 24x + 1950y = 1336.5 ⇒ 110y = 25.3
+ -2 ( 12x + 920y = 655.6 ) + -24x - 1840y = - 1311.2 <em>y = 0.23</em>
<em>Now we can substitute this value of y into the first equation as to solve for x: </em>8x + 650 ( 0.23 ) = 445.5, 8x = 296, <em>x = 37</em>
<em>* Cost paid daily when using the motorcycle: $37,</em>
<em>Cost paid for each kilometer driven in the motorcycle: $ 0.23 *</em>