Answer:
n= -14
Step-by-step explanation:
First, convert into a decimal:
as a decimal is 0.5
now the equation is 0.5n+10.5=3.5
Move the constant to the right and change its sign:
0.5n=3.5-10.5
Calculate the difference:
0.5n=3.5-10.5
0.5n= -7
Divide both sides of the equation by 0.5:
0.5n÷0.5= -7÷0.5
n= -14
Hope this helps!! <3
Answer:
a ) ,
b )
Step-by-step explanation:
This is a nice and short question we have here.
Given that a bag has n counters, and that one counter is blue, respectively the rest is red, if two counters are taken at random there isn't a definite percentage that one of the counters chosen is red or blue, but there is a fractional representation of this.
We could express n ( number of counters ) to form a probability of 2 / n. As you can see, two counters are taken at random over n counters, and thus we derived this fraction.
a )
____
Now we have this second part -
Therefore, there are 15 red counters. Hope that helps!
