3 years ago

Explain how to solve the equation 2(4x-11)+9=19

Mathematics

1 answer:

gulaghasi [49]3 years ago

5 0

Answer:

x=4

Step-by-step explanation:

2(4x-11)+9=19

subtract 9

2(4x-11)=10

distribute the 2

8x-22=10

add 22

8x=32

divide by 8

x=4

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Ad libitum [116K]

Answer:

$14 - 4x + 9y$

Step-by-step explanation:

6-4[x+1-(y+3)]+6y

6-4[x+1-y-3]+6y

6-4[x-2-y]+6y

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3 years ago

Evaluate f(-2) for f(x)= 8x^2-7x+3

prisoha [69]

Answer: 49

Step-by-step explanation:

We know, x = -2

Substituting value of x in $8x^{2} -7x+3$ ,

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4 years ago

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What are the solution(s) to the quadratic equation 9x2 = 4?

Oksanka [162]

we have

$9x^{2}=4$

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$9x^{2}/9=4/9$

$x^{2}=4/9$

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$x=(+/-)\sqrt{\frac{4}{9}}$

$x=(+/-)\frac{2}{3}$

the solutions are

$x1=\frac{2}{3}$

$x2=-\frac{2}{3}$

therefore

<u>the answer is the option</u>

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8 0

3 years ago

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Sharon wants to make a graph to show the realationship between the number of tickets sold and the price of tickets sold

Anna35 [415]

Given:
Let x be the number of tickets sold
Let y be the price of tickets sold

(0,0)(1,20)(2,40)(3,60)(4,80)

These points show that 1 ticket costs 20.

y = 20x

y = 20(0) = 0
y = 20(1) = 20
y = 20(2) = 40
y = 20(3) = 60
y = 20(4) = 80

The price of tickets sold is in direct variation to the number of tickets sold. This means that the increase in the number of tickets sold will correspond to an increase in the price of tickets sold at a constant rate of variation.

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4 years ago

Can someone help me with this!!

34kurt

Answer:

Step-by-step explanation:

6 0

3 years ago