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4 years ago

What is 65% of 220 please help

2 answers:

7 0

If you do 0,65 (wich is 65 percent in decimal) 0,65 x 220 = 143. Now you need to add that number to 220. (220+142 = 363) wich is the answer! :)

Natasha_Volkova [10]4 years ago

3 0

You will say 65/100 times 220 to get 143 (hope it helps)

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Which one of these relationships is different than the other three? Explain how you know. Hint: Find all

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Graph 2 has a different constant of proportionality

Step-by-step explanation:

See attachment for graphs

To calculate the constant of proportionality, we simply determine the slope of each graph using

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where x's and y's are corresponding values of x and y

Graph 1:

$(x_1,y_1) = (0,0)$

$(x_2,y_2) = (0.8,4)$

Substitute these values in: $m = \frac{y_2 - y_1}{x_2 - x_1}$

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Graph 2:

$(x_1,y_1) = (0,0)$

$(x_2,y_2) = (10,55)$

Substitute these values in: $m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{55 - 0}{10 - 0}$

$m = \frac{55}{10}$

$m = 5.5$

Graph 3:

$(x_1,y_1) = (0,0)$

$(x_2,y_2) = (4,20)$

Substitute these values in: $m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{20 - 0}{4 - 0}$

$m = \frac{20}{4}$

$m = 5$

Graph 4:

$(x_1,y_1) = (0,0)$

$(x_2,y_2) = (10,50)$

Substitute these values in: $m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{50 - 0}{10 - 0}$

$m = \frac{50}{10}$

$m = 5$

<em>From the calculations above, graph 2 has a different constant of proportionality of 5.5 while others have 5 as their constant of proportionality</em>

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3 years ago