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3 years ago

12

Yesterday,there were 35 problems assigned for math homework. Tiana did 40% of them correctly. How many problems did Tiana get ri

ght?

1 answer:

irina1246 [14]3 years ago

8 0

Answer:

35(.4)= 14

Step-by-step explanation:

you multiply actual number of problems (35) with .4 (.4 is 40/100, your percentage) so

35 (.4)= 14

in other words:

35( 40/100)=14

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factorise out ¾ :

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DochEvi [55]

Answer:

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Step-by-step explanation:

Hi there!

Slope-intercept form: $y=mx+b$ where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when x=0)

<u>1) Determine the slope (</u><u><em>m</em></u><u>)</u>

$m=\displaystyle\frac{y_2-y_1}{x_2-x_1}$ where two points that fall on the line are $(x_1,y_1)$ and $(x_2,y_2)$

On the graph, two points are highlighted for us: (0,-4) and (2,2). Plug these into the formula:

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<u>2) Determine the y-intercept (</u><u><em>b</em></u><u>)</u>

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Recall that the y-intercept occurs when x=0. Given the point (0,-4), the y-intercept is therefore -4. Plug this into $y=3x+b$ :

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I hope this helps!

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