Hadlee got 18 out of 20 questions correct on her math quiz. what percent of the questions did she get right?

90%

Step-by-step explanation:

An easy way that I use to use to get percentages was get the denominator to equal 100. Anything over 100 would be the percentage, that's the way I was taught.

You multiply by to get the denominator, 20, to equal 100

× =

= 90%

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

3/6 chance

step-by-step explanation:

half of the nubers are odd numbers (1,3,5) which in that case if you would be told to simplify it would be 1/2