Answer: B
x q(x)
-2 -1
3 0
8 1
13 2
Step-by-step explanation:
An inverse of a function is a reflection across the y=x line. This results in each (x,y) point becoming (y,x).
x f(x)
-1 -2
0 3
1 8
2 13
So the inverse becomes:
x Inverse
-2 -1
3 0
8 1
13 2
x = number of questions
3y = points for a correct answer
-1x or -x = points for an incorrect answer
Adding up the correct and incorrect points/answers gives us the final score. We can solve to see how many questions were incorrect. (We are told 10 were correct)
3y + (-1x) = 20
3(10) + (-1x) = 20
30 - x = 20
10 = x
x = 10
So she got 10 correct and 10 incorrect, and there were 20 questions in all.
235+123 = 357
This question does not have enough information, like what do you mean by "<em>number line</em>"
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Have a nice day❤︎
Kearsi
Answer:
12 weekly payments
Step-by-step explanation:
Here, we want to get the number of weeks in which he made payment for the ring
We start by subtracting the deposit,
That would be;
225-75 = 150
Now, we proceed to divide what ie left by the weekly payment to get the number of weeks
That would be;
150/12.5 = 12
The mixed number is 4 5/12.
