Answer:
Step-by-step explanation:
<u>Possible number of pairs of given cards:</u>
<u>Number of sums with odd score, two odd numbers added to an even number from each box:</u>
- 2*1 + 1*2 = 4 (pairs of 3 and 5 with 2 or pairs of 9 and 3 with 4)
<u>Required probability:</u>
The solution of the system of linear equation are (1, 7)
<h3>How to solve system of equation?</h3>
3a + 6b = 45
2a - 2b = -12
multiply equation(ii) by 3
Therefore,
3a + 6b = 45
6a - 6b = -36
9a = 9
a = 1
Hence,
2(1) - 2b = -12
2 - 2b = -12
-2b = -12 - 2
- 2b = - 14
b = -14 / -2
b = 7
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Answer:
Step-by-step explanation:
Let the number be x
<u>Four times a # added to -7:</u>
<u>Sum of four times the # and 6:</u>
<u>Subtracted from twice the Sum:</u>
- 2(4x + 6) - (4x - 7) =
- 8x + 12 - 4x + 7 =
- 4x + 19
we will first calculate the cost of each month, then for each day and then for each period and then for each minute.
cost per month = 10750/10 = 1075
considering each month has 30 days
cost for each day = 1075/30 =
cost for each period = 1075/(30×7)
cost for each minute = 1075/(30×7×45)
=$ 0.11375
