20 POINTS FOR HELP!!

Mathematics

2 answers:

uranmaximum [27]3 years ago

5 0

Y=3x+30
because if you look she automatically makes $30, and her salary goes up every time cone by 3<span />

nekit [7.7K]3 years ago

4 0

So since the first point (0,30) has an x intercept of 0 and a y intercept of 30
We can immediately eliminate any that do not have an y intercept of 30
So choices a and b are automatically incorrect

and now to solve for slope we do (y2-y1)/(x2-x1)
so we can choose any two points so I'll use points (0,30) and (1,33)

so 33-30=3
and 1-0=1

so we then do rise(y) over run (x)
and we now know our unit rate is 3x

so your answer is D

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2. An expression is shown.

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Adding parentheses in the component $9\div 3$ of the expression may bring an output of 48.

<h3>Procedure - Application of hierarchy rules in a arithmetic expression</h3>

In this question we should make use of hierarchy rules represented by the use of parentheses. The parentheses oblige to make operations inside it before making it in the rest of the formula.

Now we decide to add parenthesis in the component $9\div 3$ such that the result of the entire expression is 48. We proceed to present the proof:

$2 \times 8 \times (9\div 3)$