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3 years ago

Solve the proportion. 2/x+3=5/x

1 answer:

7 0

$\displaystyle\bf\\\frac{2}{x+3}=\frac{5}{x}\\\\5(x+3)=2x\\\\5x+15=2x\\\\5x-2x=-15\\\\3x=-15\\\\x=\frac{-15}{3}\\\\\boxed{\bf~x=-5}$

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25 is 40% of what number?

andrew-mc [135]

It would actually be 62.5

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3 years ago

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Abe has 150 t-shirts to sell before the playoffs begin. The table shows the linear relationship between the number of t-shirts r

Papessa [141]

Answer:

Y= -12x + 150

Step-by-step explanation:

1. You do the change in y over the change in x to get the slope.

y1 - y2 / x1 - x2 and you get the slope of -12

2. Making a point-slope form equation

y-y1=m(x-x1)

y-138= -12(x-1)

3. Turning point-slope form equation to slope-intercept

y-138= -12(x-1)

distributive property

y-138=-12x+12

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3 years ago

Click once to choose an answer. Click again to change your answer. Choose all that locate the ordered pair in the correct quadra

forsale [732]

Answer:

$Quadrant\ IV = (5, -3)$

$Quadrant\ I = (9, 11)$

$Quadrant\ II = (-1, 3)$

$Quadrant\ III = (-2, -4)$

Step-by-step explanation:

Given

$Quadrant\ IV = (5, -3)$

$Quadrant\ II = (-4, -8)$

$Quadrant\ I = (9, 11)$

$Quadrant\ II = (-1, 3)$

$Quadrant\ III = (-2, -4)$

Required

Determine which coordinate fall in the right quadrant

First, we split the each quadrant into x and y axis

In the first:

x and y is +

In the second:

x is - and y is +

In the third

x and y are -

In the fourth

x is + and y is -

Comparing the given coordinates to their respective quadrants, base on the conditions stated above

$Quadrant\ IV = (5, -3)$ is correct

$Quadrant\ I = (9, 11)$ is correct

$Quadrant\ II = (-1, 3)$ is correct

$Quadrant\ III = (-2, -4)$ is correct

$Quadrant\ II = (-4, -8)$ is incorrect

3 0

3 years ago

What is the value of x?<br><br> A. 2 Units<br> B. 3 Units<br> C. 5 Units<br> D. 8 Units

Fudgin [204]

You need the formula for geometric mean for right triangles as it applies to the altitude. For us, that formula will be $\frac{BD}{AD}=\frac{CD}{BD}$ where BD is your altitude. The formula then, filled in accordingly, would be $\frac{10}{x}=\frac{4x}{10}$ . We cross multiply to get that $4x^2=100$ . Divide both sides by 4 to get $x^2=25$ , so x = 5. Choice C is the one you want.

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3 years ago

Lindsey's math certificate is 17 centimeters tall and 31 centimeters wide. Lindsey wants to put the certificate in a fancy frame

igor_vitrenko [27]

i believe it would be 96 dollars.

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3 years ago

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