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denis-greek [22]
3 years ago
7

Linear Equations 4(t-2) + 2t -4 = 2(9-2t)

Mathematics
1 answer:
Volgvan3 years ago
5 0

Hey!


Here is the equation:


4(t-2)+ 2t - 4 = 2(9-2t)


First remove the parentheses and multiply everything. Now it becomes:


4t - 8 + 2t - 4 = 18 - 4t


Combine all the terms with variables(like terms). It becomes:


6t - 12 = 18 - 4t


Add 4t to each side so you can move the variable. It becomes:


10t - 12 = 18


Add 12 to each side to leave the variable alone. It becomes:


10t = 30


At last, divide both sides by 10 to leave the variable by itself.


\frac{10t}{10} = \frac{30}{10}


Divide:


\framebox{t = 3}

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Ivan

answer:

mean: 15.8

median: 12

mode: no mode

range: 27

step-by-step explanation:

  • first know how to find each of the above and what they are
  • mean = (avg) add all the numbers, then divide by the number of numbers
  • median = the middle number from increasing order
  • mode = the one that repeats the most
  • range = the difference between the largest and smallest number

8, 35, 10, 12, 14

<u>mean</u>

8 + 35 + 10 + 12 + 14 = 79

  • there are five numbers

79 / 5 = 15.8

<u>median</u>

  • put them from smallest to largest

8, 10, 12, 14, 35

  • 12 is the median OR the middle number

<u>mode</u>

  • no number repeat, so no mode

<u>range</u>

35 - 8 = 27

3 0
3 years ago
The temperature at 6pm was 0 degrees Fahrenheit at 10 pm the temperature was -11.2 degrees Fahrenheit write an expression that y
lana66690 [7]
The answer is the temperature goes down 2.8° every hour and the expression is x=-11.2/4 because 4 is how many hours between 6pm and 10pm and its -11.2 because that was how much the temperature dropped from 6pm to 10pm
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3 years ago
Berniece solved the following equation:
aniked [119]

Answer:

Step 4.

Step-by-step explanation:

To isolate the x variable, she subtracts 8 from both sides making it another subtraction property of equality justification.

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2 years ago
What is the range of the function f(x) = 12 − 3x for the domain {-4, -2, 0, 2, 4}?
Sphinxa [80]

Answer:

{24, 18, 12, 6, 0} is the range of the above function

Step-by-step explanation:

solution:

let, x= -4

f(-2) = 12-3*(-2)

= 12+12

=24

let,x= -2

f(-2) = 12-3*(-2)

=12+6

18

let,x =0

f(0)= 12-3*0

=12-0

=12

let,x=2

f(2) = 12-3*2

=12-6

=6

let,x=4

f(4) = 12-3*4

=12-12

=0

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3 years ago
20 POINTS AND BRAINLIEST !! PLEASE ANSWER THIS QUESTION !!
BlackZzzverrR [31]

Answer:

-14

Step-by-step explanation:

f(x) = 3x-5

g(x) = -x^2 +1

g(2) = - (2^2) +1

g(2) =-4+1 = -3

Then stick the -3 in f(x)

f(-3) = 3(-3)-5 = -9 -5 = -14

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7 0
2 years ago
Read 2 more answers
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