Answer:
The rule is: y = -10x+85
Step-by-step explanation:
The rule is given by:

Here m is the gradient and b is the y-intercept.
We have to take two pairs of input-output to find the rule
Let the two pairs be:
(x1,y1) = (1,75)
(x2,y2) = (2,65)
Slope is found using the formula:

Putting the values

Putting the value of slope

Putting a pair of input-output in the equation (1,75)

Putting the value of b

Hence,
The rule is: y = -10x+85
Answer:

Step-by-step explanation:
we are given the polynomial as

here we can see that the GCF of
,
and
is
Hence we take it outside the bracket

The polynomial within the bracket
can not be factorized further , hence this would be our final answer.
Given that R=130 and S=90. ST are congruent to UT so therefore U=90 and T=50
Answer:
You have the two numbers, so 36/60 is the ratio of boys to girls.
Step-by-step explanation:
You will want to simplify those numbers (reduce to lowest terms).