Solve the system of equations for y. x - 5y = -6 and x + 2y = 8
1 answer:
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For this case, the first thing we must do is define variables.
We have then:
x: number of blue beads
y: number of red beads
We now write the inequations system:
Answer:
a system of linear inequations that represents the situation is:
We have then:
x: number of blue beads
y: number of red beads
We now write the inequations system:
Answer:
a system of linear inequations that represents the situation is:
Answer:
<em>i: </em>x=-2, x=1
<em>ii: </em>x=-1/2
Step-by-step explanation:
Quadratic form:
You solve <em>i </em>by using FOIL (First, Outside, Inside, Last) because it is a multiplication problem.
<em>"first"</em> would be , which would equal
<em>"outside"</em> would be , which would equal
<em>"inside"</em> would be , which would equal
<em>"last" </em>would be , which would equal
Now you need to combine the terms so that they are one after the other
Combine like terms, and you should get:
i Solution
<em>You need to get the variable by itself.</em>
<em>Subtract two from both sides</em>
<em>Add one to both sides.</em>
ii Solution
<em>Add all the terms.</em>
Answer:
Option A
Step-by-step explanation:
we start with 12 red marbles out of 25 marbles, that's the probability for the first.
in the second step we have one red marble less, wich also means one marble less overall
and so on
can be reduced by 1320 (step by step) to