Answer:
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Step-by-step explanation:
Answer:
Original price was $2163
Step-by-step explanation:
Let original price be x
23% of x = 497.42
23/100 × x = 497.42
23x/100=497.42/1
Cross multipy,
23x × 1 = 497.42 × 100
23x=49742
x=49742/23
x=2,163 approximately
Answer:
n=18
Step-by-step explanation:
100=4(n+7)
100=4n+28
-28 -28
72=4n
n=18
In case this wasn't easy to understand, first you distribute the 4 to the n and 7, to get 28, after that the equation becomes 100=4n+28, then you subtract 28 from 100, and from itself to get the 4n by itself, you are left with 72=4n, after that you just divide 4n and 72 by 4 and get n=18
hope that helped :)
Answer:
Step-by-step explanation:
Lets suppose the one side be x and the other side of the rectangle be y
given area ![x*y=650ft^2](https://tex.z-dn.net/?f=x%2Ay%3D650ft%5E2)
implies x = 650/y
Cost = 2*4*x+2*3*y=8x+6y
= 8*650/y + 6y
= 5200/y + 6y
upon differentiating we get
=![-5200/y^2 + 6=0](https://tex.z-dn.net/?f=-5200%2Fy%5E2%20%20%2B%206%3D0)
= 2600/3
y=
= 43.3
x= 15
C(43.3)=
>0 hence it is a minima value
optimizing the result we get
Cost = 8*15+6*43.3 =$ 379.8
Order set...{160,165,170,240,240,450}
The "mean" is the arithmetic average of the elements...
mean=(160+165+170+240+240+450)/6=237.5
The "median" if the set has an odd number of terms is the middle term, if the set has an even number of terms, it is the average of the middle two terms.
In this case the number of elements is even and the middle two terms are 170 and 240 so:
median=(170+240)/2=205
The "mode" is the term which appears the most in the set, so in this case:
mode=240