➭Doing it all using mental math
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<u>Step 2:</u></h2>
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The given values of abscissa and ordinate in the given are that which
when substituted to the values of x and y in the equation will make the
equation true. This means that the left and right-hand side of the equation
will be equal. The established equations should have a basis of,
x + y = c
The equations are,
x + y = 6
Substituting x = 7 and y = -1,
7 + (-1) = 6 ; 6 = 6
The other two equations will be,
2x + y = 13 and,
x + 2y = 5
It is to be noted that countless of equations can be made with the given
solution so long as the equation is valid.
Answer:
20x/100 = 34/1
20x = 3400
x = 170
Step-by-step explanation:
Answer:
i think it is f(x)= 10m+0.10s
x= number text messages send
m= months
for example: if you send 200 messages and were in the plan for 3 month the function will go like this;
f(x)= 10(3)+0.10(200)
=30+20
= $50