Let a be the variable for the equation.
now equation for the situation is 1a + 2(a-3) = 91.50
1a + 2a - 6 = 91.50
3a = 97.50
thus, a = 97.5/3 = 32.5$
Now, price of first blouse = 32.5
The price of other two blouse = 32.5-3 = 29.5$
We know that
[the volume of the stack of books]=[area of each book]*[<span>height of the stack]
</span>area of each book=63 in²
height of the stack=15.75 in
<span>so
</span>[the volume of the stack of books]=[63 in²]*[15.75 in]=992.25 in³<span>
the answer is
</span>D) 992.25 in³
Answer:
$368 each week.
Step-by-step explanation:
What you do is you divide by 4 to get the amount he earned each week.
1472/4=$386 each week.
75n-36=21n^2 rearrange so we have an equation equal to zero...
21n^2-75n+36=0 divide whole equation by 3
7n^2-25n+12=0 now factor...
7n^2-21n-4n+12=0
7n(n-3)-4(n-3)=0
(7n-4)(n-3)=0
Since this is an integer 4/7 is extraneous.
The integer value is 3
Answer:
Step-by-step explanation:
From the question we are told that
Number of runners 
Distance 
Generally the top three places can be determined mathematically as
therefore the top three can be determined in 336ways
