Well if you have 100$ you would want to buy something a little under 100 because if you bought something that was exactly 100$ you would need more money because of tax. So it would be best if you buy something that is 95$ instead of something that is exactly 100$!!
You'll most likely have to use the quadratic formula to find your answer.
Answer:
8
Step-by-step explanation:
Arranging the data into the increasing order
5.6 6.0 6.4 6.5 6.6 6.8 7.1 7.7 7.8 7.9 8.0 8.2 8.8 8.8 9.3
73n/100=73*15/100=10.95 is not an integer
So, the 73rd percentile is
P73= weight of (73n/100)+1
P73= weight of observation (10+1)
P73=weight of 11th observation
P73=8.
The weight that represents the 73rd percentile is 8.
Answer:
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Step-by-step explanation:
What you want to do is take one of the 2 equations and isolate one variable. you will then use the value that you find for the variable and plug it back into the other equation. here is how:
This would be easiest to do with the second equation in the set since the x is not being multiplied by anything. So lets isolate the x in the second equation.
add 0.9y to both sides and you get:
x=4.5+0.9y
we now know what x is equal to in terms of y. so lets replace the x in the first equation with the new value. You get:
1.5(4.5+0.9y)-1.9y=-29
Now just solve for y:
6.75+1.35y-1.9y=-29
1.35y-1.9y=-35.75
-0.55y=-35.75
y=65
so now you know that y=65 so plug 65 in as y in the second equation to find x
x-0.9*65=4.5
Now simply solve for x
x-(-58.5)=4.5
x+58.5=4.5
x=-54
Hope this helped! :)
