Answer:
Probability, eh?
Step-by-step explanation:
To figure out how likely an event is, we just put the number of the blue bands over the total number of 'other' bands.
Pretty easy!
(or do you want it in percent?)
%
(I remember there was a weird notation for these things, but I forgot it)
It is unlikely he will choose a blue band, as it is much more likely he will choose a 'other' band.
Remember, the smallest number for an event will make it the most unlikeliest to happen out of all the others.
Hope this helps!
P.S. Stay Safe, Wash Your Hands, etc.
Let x = number of 5 cent coins.
Then there are (x+2) 10 cent coins.
Let y = 20 cent coins.
Total coins: x+(x+2)+y = 30
2x+y=28
y = 28-2x (1)
Total value: 0.05x + 0.1(x+2) + 0.2y = 3.80
0.15x + 0.2y + 0.2 = 3.80
0.15x + 0.2y = 3.60 (2)
Substitute (1) into (2).
0.15x + 0.2(28-2x) = 3.60
-0.25x + 5.60 = 3.60
2.00 = 0.25x
8 = x
From (1), obtain y = 28 - 2(8) = 12
Answer: (x+2) = 8+2 = 10
Louise has 10 10-cent coins
Answer:
8x + 6 = 3
Step-by-step explanation if solving for x
Simplifying
8x + 6 = 3
Reorder the terms:
6 + 8x = 3
Solving
6 + 8x = 3
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-6' to each side of the equation.
6 + -6 + 8x = 3 + -6
Combine like terms: 6 + -6 = 0
0 + 8x = 3 + -6
8x = 3 + -6
Combine like terms: 3 + -6 = -3
8x = -3
Divide each side by '8'.
x = -0.375
Simplifying
x = -0.375
Answer:
per 100 pencils he looses $75
Step-by-step explanation:
If he sells 100 pencils at $1.75 he will make $175 which is less than the $250 he spent for the 100 pencils. So per 100 pencils he looses $75
