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3 years ago

5

An equation is shown below:

1 answer:

Anarel [89]3 years ago

4 0

I would have to go with the first one because 2(3x-5)=1 is the same as 6x-10=1
then all you have to do is divide 11 by 6 and the answetr should be c or in this case x=1.83
to check your work do this 6(1.83)-10 and your answer should come to .98
all you have to do is round to 1.0

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Subtract 3x−7 from 9x+5. <br><br>Simplify your answer.

Schach [20]

(9X+5) - (3X-7)

9X-3X=6X

5-7=-2

6X-2

7 0

3 years ago

Dave sold 60 general and reserved tickets for a concert. He sold general tickets for $10 each and reserved tickets for $15 each

swat32

Answer:

The system is of equations is:

$\left\{ \begin{array}{ll} 10g+15r=725 & \quad \\ g+r=60 & \quad \end{array} \right.$

Where g is the amount of general tickets and r is the amount of reserve tickets.

35 general tickets and 25 reserve tickets were sold.

Step-by-step explanation:

Let general tickets be represented by g and reserved tickets be represented by r.

Each general ticket sells for $10 each and reserved tickets $15 each. Dave collected a total of $725. Thus:

$10g+15r=725$

And a total of 60 tickets were sold. Hence:

$g+r=60$

Our system of equations is:

$\left\{ \begin{array}{ll} 10g+15r=725 & \quad \\ g+r=60 & \quad \end{array} \right.$

We can solve by substitution. First, divide both sides of the first equation by 5:

$2g+3r=145$

Next, we can subtract a variable (r in this case) from the second equation:

$g=60-r$

Substitute:

$2(60-r)+3r=145$

Distribute:

$120-2r+3r=145$

Simplify:

$120+r=145$

Subtract:

$r=25$

Using the previous equation:

$g=60-r$

Substitute and evaluate:

$g=60-(25)=35$

So, 35 general tickets and 25 reserve tickets were sold.

4 0

3 years ago

Given f(x)=x^3+2x+k.<br> and x+1 is a factor of f(x), then what is the value of k?

Ludmilka [50]

Answer:

k = 3.

Step-by-step explanation:

By the Factor Theorem. if x+a is a factor of f(x) then f(-a) = 0.

Here we use f(-1):

f(-1) = (-1)^3 + 2(-1) + k = 0

-1 - 2 + k = 0

k = 3.

4 0

3 years ago

Площа паралелограма дорівнює 98 см“, а одна з його ви-

netineya [11]

Sorry I don’t know the answer and the question to

5 0

2 years ago

102 is 126% of what number<br><br> 128.52<br> ≈ 8.10 <br> ≈ 80.95 <br> 12.85

disa [49]

Step-by-step explanation:

102*100=10200

10200÷126=80.95

So the third one is correct

4 0

2 years ago