9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?

Answers

Answer 1

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[tex]f(x) = 5x - 4[/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]f(2a) = 5(2a) - 4[/tex]

[tex]f(2a) = 10a - 4[/tex]

[tex]156 = 10a - 4[/tex]

[tex]10a - 4 = 156[/tex]

Add sides 4

[tex]10a - 4 + 4 = 156 + 4[/tex]

[tex]10a = 160[/tex]

Divide sides by 10

[tex] \frac{10a}{10} = \frac{160}{10} \\ [/tex]

[tex]a = 16[/tex]

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Related Questions

What is the solution to the equation below
50+ 4 = 2(C-5)

Answers

Answer:

32

Step-by-step explanation:

54 = 2(C-5)

27 = C-5

32 = C

what is the equation of the line that passes through the point (-3, 4) and has a slope of 1/3? ​

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Answer:

Y=1/3x+5

Step-by-step explanation:

I hope it help you

5th grade math. Correct answer will be marked brainliest.

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Answer: 1,285, 1,282, 1,278

Step-by-step explanation:

Answer:

1,285, 1,282, 1,278

Step-by-step explanation:

which table shows y as Directly propertional to x

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Where is the table?

A scale drawing of a rectangle park measures 6 inches long and 2 inches wide. If the scale used for the 3 inches equals 7 yards, what is the actual length of the park?

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I’m so sorry for this

simply the following equations
a. -5(-3x - 2y +1)

b. 6(x + 3y -5)

Answers

15x + 10y -5

6x + 18y -30

Rst is a right triangle rs=12 rt=20 st=15 what is sin r

Answers

Answer:

3/4 (0.75)

Step-by-step explanation:

sin r = 15/20 = 3/4 (0.75)

Evaluate 5x-2w+t

Help needed!!

Answers

the answer is the same

The value of x is (2w - t)/5.

The value of w is (5x + t)/2.

The value of t is  2w - 5x.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

5x - 2w + t = 0

Solve for x.

5x - 2w + t = 0

5x = 2w - t

x = (2w - t)/5

Solve for w.

5x - 2w + t = 0

5x + t = 2w

w = (5x + t)/2

Solve for t.

5x - 2w + t = 0

t = 2w - 5x

Thus,

The value of x, w, and t is given above.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

can someone help me with my test i have too write out the whole entire process & simplify them -
1st -3(2x-5)
2nd - 5+3x-8y+2x+9y-12

Answers

Answer:

1st -6x + 15

2nd 5x + y - 17

Simplified = -x + y -2

Step-by-step explanation:

Just add like terms if that's what it's asking.

Find all real square roots of -9

Answers

Answer:

3i

Step-by-step explanation:

i equals -1, the square root of 9 is 3

-1 times 3 times 3 is -9

5/100+8/10=?......help

Answers

85/100
17/20 when simplified

Answer:

the answer is [tex]\frac{17}{20}[/tex]

Step-by-step explanation:

Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations (I use it all the time).

Write an equation in POINT-SLOPE FORM of the line that has a slope of -3/5 and passes through the point (2, 1). harrryyy this is due at midnight if u dont know please dont just steall my pointssss

Answers

Answer:

y=-3/5x+2.2

Step-by-step explanation:

Mario walked at a rate of 5/6 miles every 10 minutes what is his unit rate every mile per hour

Answers

Answer:

Mario's unit rate is 5/1

Step-by-step explanation:

We know that Mario walks 5/6 miles per 10 minutes.

We need to find out how many miles Mario walks in 60 minutes (1 hour).

10 * 6 = 60. Which means that we must multiply 5/6 by 6.

[tex]\frac{5}{6} *\frac{6}{1} = \frac{30}6[/tex]

30/6 = 5

Mario walks 5 miles per hour.

To put this in to a unit rate we must put this is a fraction:

[tex]\frac{Miles}{Hour}[/tex]

Substitute:

5/1

Answer:

Mario's unit rate is given by 900 miles/hour

Step-by-step explanation:

We have been given that Mario walked at a rate of 2/3 miles every 10 minutes

We have the relation between speed, time and distance, which is given by

speed = distance/Time

we have,

distance = 2/3 miles

Time = 10 minutes

On substituting these values in above formula, we got

speed 2/3 /10

speed 2/10.3

We have to find the unit rate in mile per hour, so we need to multiply it by 60

Thus, unit rate is given by

1/15 X 60

= 4 miles/hour

-5(3-r)=30
Please help!

Answers

The answer to -5(3-r)=30

based only on the given information, it is guaranteed that ac is congruent to bc. true or false?

Answers

True. SAS or ASA. It shows that AD and BD are congruent and the triangles also share two sides and two angles.

Answer:

True. SAS or ASA. It shows that AD and BD are congruent and the triangles also share two sides and two angles.

Step-by-step explanation:

Jack and Jill are going up the hill to pull weeds. Jack can pull all of the weeds by himself in 8 hours; if Jill helps him they can pull the same amount of weeds in 5 hours. How long would it take Jill to pull the weeds working alone?

Answers

Answer:

it would take jill 12 hours

Answer:

13.3 hours

Step-by-step explanation:

5/8 +5/b = 1

8b(5/8+5/b=1)

5b+40=8b

40=3b

40/3=b

40/3=13.3 hours

Write the equation of the line that passes through the given points. (-2,2.5) and (0,-4.5)

Answers

Answer: y = -3.5x - 4.5

suppose: the equation of the line is y = ax + b ( a ≠ 0 )

because the line passes through (-2;2.5) => 2.5 = -2a + b

the line passes though (0;-4.5) => -4.5 = b

=> b = -4.5

   2.5 = -2a + b

=> a = -3.5

    b = -4.5

=> the equation of the line is y = -3.5x - 4.5

Step-by-step explanation:

The equation Of the line is y =-3.5x-4.5

what percent is equivalent to 2/3

Answers

2/3 is equivalent too 66.6%

This table represents the number of ounces, u, a kitten grows after w, weeks. When graphed, all of the points in the table lie on the same line. What is the slope and y-intercept of the line? slope=−23, y-intercept=−0.2 slope=32, y-intercept = 3 slope=23, y-intercept=−0.2 slope=−32, y-intercept = 3

Answers

Using the slope and intercept formula, the slope and y - intercept values of the graphed data are 3/2 and 3 respectively

Given the data :

Weeks, w ___ Weight in ounces, u

0 __________ 3

3 _________ 7.5

6 __________12

9 _________16.5

The y - intercept :

This is the value of y when the value of x = 0

From the table given, the initial weight of the kitten (weight at week 0) = 3 ounces

Hence, the intercept is 3 ounces.

2.)

The slope :

Slope = Rise / Run

Rise = y2 - y1 = (16.5 - 3) = 13.5

Run = x2 - x1 = 9 - 0 = 9

Slope = 13.5 / 9 = 1.5

Therefore, the slope is 1.5

Learn more : https://brainly.com/question/15712200

The diameter of a circle is 11 in. Find its area to the nearest tenth.

Answers

Answer: 95.033

Step-by-step explanation:

How do I solve for x in this special triangle?

Answers

Answer:

x = 5

Step-by-step explanation:

[tex]b = \sqrt{c^{2} - a^{2} }[/tex]

[tex]b = \sqrt{13^{2} - 12^{2} }[/tex]

[tex]b = \sqrt{169 - 144 }[/tex]

[tex]b = \sqrt{25}[/tex]

[tex]b = 5[/tex]

true or false dilation of a triangle are congruent to the original triangle

Answers

Answer:

True

Step-by-step explanation:

Hope this helps :)

Answer:

Step-by-step explanation:

ITS TRUE hope this helps

What is the slope of (2,6) and (7,21)

Answers

Answer:

m=3

Step-by-step explanation:

Answer:

15/5 or 3

Step-by-step explanation:

Slope is always the following formula:

y2 - y1 / x2 - x1

..............................................................................................

Now, replace the variables:

21 - 6 / 7 - 2

15 / 5

3

You want to order a pizza for dinner. The pizza shop has a deal where you can buy a three-topping pizza for 11.99. If the pizza shop has 30 different toppings that you can put on your pizza, how many different pizzas could you get for 11.99?

A.4060


B.8120


C.24360


D.12180

Answers

Answer: A. 4060 Explanation (30 & 3)= (30*29*28)/(3*2*1)= 24,360/6= 4060

struggling a lot pls help!!!!! ASAP

Answers

Answer:

Its (-2, 0)

Explanation: This is actually very simple because you just simply go left 2 times towards the middle of the two lines crossing each other, and thats -2.  Then after the point doesn't move any farther so its 0.

Which type of activity does Jeff do at a speed of 4.5 point, 5 miles per hour?

Answers

Answer:

Swimming

Step-by-step explanation:

The type of activity that Jeff does at a speed of 4.5 miles per hour is Swimming

If this was helpful, please mark brainliest. Have a beautiful day.

Parallel or perpendicular 3x+5y=10 and 5x-3y=-6

Answers

3x+5y=10 and 5x-3y=-6 is perpendicular.

It takes Austin 8 hours longer than Elliott to construct a wooden chair in shop class. When the classmates work together, they can complete one chair in 3 hours. This situation can be represented by this expression, where t is the amount of time, in hours, it takes Elliott to complete a chair on his own.

Answers

The equivalent expression obtained using the least common multiple concept is [tex] \frac{6t + 24}{t^{2} +8}[/tex]

To solve, we need to obtain the L. C. M of the denominator values :

The L. C. M of t and t + 8 = [tex] t^{2} + 8t[/tex]

Hence,

[tex]\frac{3}{t} + \frac{3}{t+8} = \frac{6t + 24}{t^{2} +8}[/tex]

Therefore, the equivalent expression which represents the situation described above ls ;[tex] \frac{6t + 24}{t^{2} + 8t}[/tex]

Learn more :https://brainly.com/question/18112348

Answer:

D

Step-by-step explanation:

im really confused ​

Answers

Answer:

   C. 10.5

Step-by-step explanation:

2=3

3=4.5

4=6.0

5=7.5

6=9

7=10.5

Answer:

the answer is 10.5

Step-by-step explanation:

if you keep going with the relationship every 1 place value up is another 1.5 added so if you go to 7 you get 10.5

Write the rational number as a decimal -3 4/9

Answers

Answer:-3.4

Step-by-step explanation:

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