n = necklace
b = bracelet
n +b =120
n = 120-b
3.50n + 2.50b = 330
11n + 5b = 880
3.5(120-b) +2.5b=330
420-3.5b + 2.5b = 330
420 -b = 330
-b = -90
B =90
N = 30
3.5*30= 105
2.5*90 = 225
225 +105 = 330
11*30 = 330
90*5 = 450
450 +330 = 780
90 bracelets and 30 necklaces
Answer:
25x + 35(2x) = 380
25x + 70x = 380
95x = 380 so
x = 4
then i think that mean it might be 8 then im not completly sure
Answer:
19
Step-by-step explanation:
9 - (-10) = ?
To do this, we need to use the additive inverse and the method of K(eep)F(lip)C(hange)
So, the problem becomes: 9 + 10 = ?
Do the math, and you get your answer of 19.
So, its time to do some MATH!
ok so i would first approach this problem by placing the prices in order from least to greatest......um it would look something like this...(cue the math skills in my brain)
1.29,1.59,1.99,2..09, and last but most definitely not least (get it?) 2.19
so basically the median is like the MIDDLE number of your data (shout out to my fellow middle children!)
and so you may be asking "how does one figure this out?" and i will tell you that it is quite simple...
so what you got to do is cross out a number from the left and a number from the right, and you will be left with one number, which is your middle number (or in fancy maths language -the median- that was supposed to be said with a British accent, so just bear with me there :-))
and so your final answer should be....(drumroll please)
$1.99 is your median
(ta- da you are supermathematicalgeniuslevel smart)
*walks off center stage after applause*
