3 years ago

Please help me !!

Mathematics

1 answer:

schepotkina [342]3 years ago

3 0

Answer:

Step-by-step explanation:

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Write the equation of a line in slope-intercept form, y = mx + b, between the following

kupik [55]

Answer:

$y = \frac{3}{2} x + 2$

Step-by-step explanation:

In the slope-intercept form y= mx +b, m is the slope and b is the y- intercept.

$\boxed{slope = \frac{y1 - y2}{x1 - x2} }$

Using the formula above,

$slope = \frac{5 - ( - 4)}{2 - ( - 4)}$

$m = \frac{5 + 4}{2 + 4}$

$m = \frac{9}{6}$

$m = \frac{3}{2}$

Substitute the value of m into the equation:

$y = \frac{3}{2} x + b$

To find the value of b, substitute a pair of coordinates into the equation.

When x= 2, y= 5,

$5 = \frac{3}{2} (2) + b$

5= 3 +b

b= 5 -3

b= 2

Thus, the equation of the line is $y = \frac{3}{2} x + 2$ .

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3 years ago

In a park, the ratio of adults to children is 11 to 9. If there are 320 people in the park, how many children are there?

Ludmilka [50]

Answer:

144

Step-by-step explanation:

320 ÷ 20 = 16

adults : children

11 : 9

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X-12=20
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answer is 32

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An insulator is installing fiberglass insulation in exterior walls that total up to 1,623 square feet after windows and doors a

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143 because if you subtract 49 and 28 you get 21 the you divide 21 and 1623

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