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inna [77]
3 years ago
6

What is the variable of 18+t

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
6 0
T because all variables are letters
lapo4ka [179]3 years ago
3 0
Your variable would be t. Anytime you see a letter in an equation, that will be your variable :)
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Which of the following describes what happens when you change the a value in the equation shown below?
Over [174]
I will say that it is C
7 0
3 years ago
Read 2 more answers
Solve the system of equations using substitution
Andru [333]

Answer:

x = 136/11 , y = 68/11

Step-by-step explanation:

Solve the following system:

{6 x - y = 68

2 y = x

Hint: | Choose an equation and a variable to solve for.

In the second equation, look to solve for x:

{6 x - y = 68

2 y = x

Hint: | Reverse the equality in 2 y = x in order to isolate x to the left hand side.

2 y = x is equivalent to x = 2 y:

{6 x - y = 68

x = 2 y

Hint: | Perform a substitution.

Substitute x = 2 y into the first equation:

{11 y = 68

x = 2 y

Hint: | Choose an equation and a variable to solve for.

In the first equation, look to solve for y:

{11 y = 68

x = 2 y

Hint: | Solve for y.

Divide both sides by 11:

{y = 68/11

x = 2 y

Hint: | Perform a back substitution.

Substitute y = 68/11 into the second equation:

{y = 68/11

x = 136/11

Hint: | Sort results.

Collect results in alphabetical order:

Answer: {x = 136/11 , y = 68/11

7 0
3 years ago
Need help fast,please!
Elina [12.6K]

1) 3

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4 0
3 years ago
Evaluate. –1.65 + (–3.4)
elena55 [62]
Hey there! 

This seems like a algebraic expression

SO,
Remember: negative and negative = positive
                      positive and positive = positive
                     positive and negative = negative
                       negative and positive = negative

In this problem we will be doing negative and negative so that means our answer will be a negative 

Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)

-1.65 
\\ +
\\ (-3.4)


Answer: 
-5.05

Good luck on your assignment and enjoy your day

~LoveYourselfFirst:)
6 0
3 years ago
Start at -3 and add 10 number sequence
galben [10]

Answer:

-3,7,17,27,37,47,57,67,77,87,97,107

Step-by-step explanation:

You add 10 to -3 which gives you 7. You continue adding. This sequence goes on forever. You just keep adding 10.

I hope this helps!

5 0
2 years ago
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