2t + 3j = 14 ....multiply by -3
6t + 5j = 28
--------------
-6t - 9j = - 42 (result of multiplying by -3)
6t + 5j = 28
------------add
-4j = - 14
j = -14/-4
j = 3.50
2t + 3j = 14
2t + 3(3.50) = 14
2t + 10.50 = 14
2t = 14 - 10.50
2t = 3.50
t = 3.50/2
t = 1.75
so the trail mix (t) costs 1.75 per lb and the jellybeans (j) costs 3.50 per lb
120138 subtract both and that would be the answer
Answer:
1. Is a continuous random variable
2. Is a discrete random variable
3. Is not a random variable
Step-by-step explanation:
1. The exact Weight of quarters in circulation in the united states is a continuous random variable. This is because a random variable such as this can take uncountable and infinite number of values.
2. The shoe sizes if humans is an example of discrete random variable. This is a discrete random variable because it has countable number of values.
3. Political party affiliation is not a random variable.
Thank you!
Answer: The required length of steel is 270 cm.
Step-by-step explanation:
Since we have given that
Number of stems = 6
Length of each stem = 45 cm
So, we need to find the length of steel used in the frame.
So, Length of steel = Number of stems × Length of each stem
So, the length of steel becomes
Hence, the required length of steel is 270 cm.
The answer would be 1,872 because you add the deposits and then subtract the withdrawals
