The variables x and y are directly proportional, and y=2 when x=3. What is the value of y when x=9

Answers

Answer 1

Answer: $If\ x\ and\ y\ are\ directly\ proportional\ then\ (y)/(x)\ is\ constans\n---------------------------\n\n(2)/(3)=(y)/(9)\n\ncross\ multiply\n\n3y=2*9\n\n3y=18\ \ \ \ |divide\ both\ sides\ by\ 3\n\ny=6$

Answer 2

Answer: you cross multiply and you should get i think 6?

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Kwikset Enterprises sold 300 shares of stock at $12.34 per share. The underwriting commission was 5.8%. To the nearest cent, how much did Kwikset Enterprises make on its sale of stock, after subtracting the underwriting commission?

Answers

Kwikset has 300 shares in the stock. He sold it for 12.34 dollars per share:
So:
=> 300 * 12.43 dollars = 3702 dollars is the total money that she get after selling the stocks.
Now, it will be deducted by 5.8% commission.
=> 3702 * .058 = 214.716
=> 3702 - 214.716 = 3487.284 dollars
or -3487.28 dollars.

How to solve 5x-2(3x-7)=20

Answers

Hi ;) !

These is : 5x-2(3x-7)=20
      5x-6x+14= 20
      -x= 20-14
   -x=6
      x= -6

5x-2(3x-7)=20
5x-6x+14=20
-1x=6
X=-6

if the equation is h= -2x^2 + 12x -10

how do I find the max height?

Answers

One other way to solve this question is finding the derivative

$h=-2x^2+12x-10$

$h'=-4x+12$

now we have to find when this function will be zero

$-4x+12=0$

$\boxed{\boxed{x=3}}$

now we just replace this value at our initial function

$h=-2x^2+12x-10$

$h_(max)=-2*(3)^2+12*3-10$

$h_(max)=-18+36-10$

$\boxed{\boxed{h_(max)=8}}$

The maximum height is the ordinate value of the vertex of the parabola, ie: yV

Calculating yV:

$y_V=(-\Delta)/(4a)\n \n y_V=-[(12^2-4*(-2)*(-10)])/(4*(-2))=(-(144-80))/(-8)=(-64)/(-8)=8$

Suppose there is an excess demand for cell phones. In a market without price controls, market pressures will cause the price of cell phones to _____ until it reaches the equilibrium price. decrease increase stay the same

Answers

When there is heavy demand, sellers always take advantage of the opportunity to skin, fleece, and screw the buyers, by INCREASING the price. "Equilibrium" is reached wgen the buyers say "Enough ! I'm not paying that price no matter how desperately I want to have it."

Answer:

increase

Step-by-step explanation: I hope im right

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Answers

the slope is -.08x and the intercepted is 5.6
I had 5.6 percent battery left and each hour it decreased by -.08

A professional quarterback passed for 4,384 yards in 16 games in one football season. If he passed for the same number of yards each game, how many yards did he pass for in each game? Enter your answer in the box.

Answers

274 yards per game
hope this helps

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