3 years ago

I need to know how to solve this and what is the question asking

1 answer:

8 0

You can reword the equation 6x+y=9 to
Y=6x+9

Then plug-in y=6x+9 into the equation 2x+3y=-5

Plug this 2x+3(6x+9)=-5
2x+18x+27=-5
Then solve it from there

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Step-by-step explanation:

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3 years ago

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What is the sales tax on the chair shown if the tax rate is 5.75% ( the chairs price is $178.90)

Arturiano [62]

Sales tax is:
$178.90* (5.75/100)=$10.29

The sales tax of the chair is $10.29~

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3 years ago

3x + 2y = 12<br> y = x - 9

Lina20 [59]

Answer:

y=12/2

y=6

x=12/3

x=4

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3 years ago

If a tellemarketer made 200 phone calls and 35 customers signed up what is the relative frequency of getting a customer and not

Snezhnost [94]

Answer:

82.5% and 17.5%

Step-by-step explanation:

The telemarketer made 200 phone calls and only 35 people signed up. Therefore, we need to find the amount of people who didnt.

200 - 35 = 165

165 people did not sign up.

This meants that the frequency of getting a customer is 35/200 and not is 165/200. In percentages,

The relative frequency of not getting a customer is 82.5%

The relative frequency of getting a customer is 17.5%

6 0

3 years ago

Simplify

guapka [62]

The first is a. you can rewrite it
$\sqrt{x^5} = \sqrt{x^2x^2x} = \sqrt{x^2}\sqrt{x^2}\sqrt{x} = xx\sqrt{x} = x^2\sqrt{x}$

the second is d. the only common factor between 20 and 40 that can be taken out is the 4 which becomes a 2, but inside the square roots there is still a 5 and 10, which cannot be combined

the third is c.
$\sqrt{36x} + \sqrt{100x} - \sqrt{25x} \\ 6\sqrt{x}+10\sqrt{x}-5\sqrt{x} \\ 11\sqrt{x}$

the fourth is d.
add 3 to both sides $\sqrt{2x} = 10$
then square both sides $2x=100$
then divide both sides by 2, x=50

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3 years ago