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Jlenok [28]
3 years ago
15

In solving the following system of equations, how many equations do you need to multiply in order to use the method of eliminati

on?
Equation 1: −5x−20y=−15 Equation 2: 2x + 8y = 6

A. Two
B. None
C. One

Give the solution to the system above
A. No solution
B. (3, 7)
C. IMS
D. ( -2, 5)
Mathematics
1 answer:
77julia77 [94]3 years ago
4 0

Answer:

a and d i think

Step-by-step explanation:

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486 is 60% of what amount?
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Your English teacher has decided to randomly assign poems for the class to read. The syllabus includes four poems by Shakespeare
Tresset [83]
The probability of event A and B to both occur is denoted as P(A ∩ B) = P(A) P(B|A). It is the probability that Event A occurs times the probability that Event B occurs, given that Event A has occurred.

So, to find the probability that you will be assigned a poem by Shakespeare and by Tennyson, let Event A = the event that a Shakespeare poem will be assigned to you; and let Event B = the event that the second poem that will be assigned to you will be by Tennyson.

At first, there are a total of 13 poems that would be randomly assigned in your class. There are 4 poems by Shakespeare, thus P(A) is 4/13.
After the first selection, there would be 13 poems left. Therefore, P(B|A) = 2/12
Based on the rule of multiplication,
P(A ∩ B) = P(A) P(B|A)P(A ∩ B) = 4/13 * 2/12
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The probability that you will be assigned a poem by Shakespeare, then a poem by Tennyson is 2/39 or 5.13%.
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