3 years ago

If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Mathematics

2 answers:

Kay [80]3 years ago

7 0

-20 x
------ = ---------
-15 12

-15x = -240
x = -240/-15
x = 16

hope this helps :)

Oksi-84 [34.3K]3 years ago

5 0

I think x would be 7

You might be interested in

What is the multiplicative rate of change of the

luda_lava [24]

Answer:

The answer for thue would happened to be 2

-1.

6 0

3 years ago

Interpret the coefficient PayDay, 96.68. If you were part of the analytics team at Caesars, how would you explain this coefficie

taurus [48]

Answer:

Step-by-step explanation:

solution attached below

3 0

3 years ago

Which expression represents 3 more than 2x

andrey2020 [161]

The answer would have to be 3+2x

4 0

3 years ago

X^2-5x-8=0 find the roots (zeros)

melomori [17]

Answer:

$x_1=\dfrac{5-\sqrt{57}}{2}\ ,\quad x_2=\dfrac{5+\sqrt{57}}{2}$

Step-by-step explanation:

$x^2-5x-8=0\\\\a=1\,,\ b=-5\,,\ c=-8\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\dfrac{-(-5)\pm\sqrt{(-5)^2-4\cdot1\cdot(-8)}}{2\cdot1}=\dfrac{5\pm\sqrt{25+32}}{2}=\dfrac{5\pm\sqrt{57}}{2}$

5 0

4 years ago

Considering this real-world scenario, find UV and RS and explain your reasoning as part of your answer.

Katen [24]

The length of UV and RS is 72.2in and 114 in respectively

<h3>Similarity theorem of triangles</h3>

From the given truss. you can see that:
VW = UR = RS = 57in

Get the length of RS

RS = UR + US
RS = 57 + 57
RS = 114 inches

To get the length of UV, we will use the expression

SU/UV = SR/RT

57/UV = 114/90

UV = 72.2in

Hence the length of UV and RS is 72.2in and 114 in respectively

Learn more on similarity theorem here: brainly.com/question/21247688

7 0

2 years ago