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Scrat [10]
4 years ago
11

What is the step by step process of this question

Mathematics
1 answer:
drek231 [11]4 years ago
7 0
Hello there!

In order to solve this system of equations, you would first need to make one equation have a negative variable.

2a + 3b = -1
(3a + 5b = -2) -1

2a + 3b = -1
-3a - 5b = 2

Now, we have to modify the equations for it to be able to cancel out a variable. To do this, you would need to look at the least common multiple.

2: 2, 4, 6, 8, 10
3: 3, 6, 9, 12, 15

One least common multiple would be 6 so let's modify the equation!

(2a + 3b = -1) 3
(-3a - 5b = 2) 2

6a + 9b = -3
-6a - 10b = 4

Now, let's cancel out the variable and solve for b.

9b = -3
-10b = 4

-1b = 1
b = -1

In order to solve for a, just plug in the b into one equation and solve for a.

2a + 3(-1) = -1
2a - 3 = -1
2a = 2
a = 1

The answer would be a = 1 and b = -1


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sergij07 [2.7K]
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|a|
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ehidna [41]

Answer:

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I hope this does something to help, and as always, I am joyous to assist anyone at any time.

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How many times must you roll an ordinary 6-sided dice for the probability of getting at least one multiple of 3 more than 0.7
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Question isn't clearly stated.

The. Probability o

Answer:

Step-by-step explanation:

How many times must you roll an ordinary 6-sided dice for the probability of getting at least one multiple of 3 more than 0.7

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I made it easier to read
strojnjashka [21]

what do u mean what is this?

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