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3 years ago

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Mathematics

2 answers:

Lemur [1.5K]3 years ago

8 0

Since a and 5 aren't like terms, you would write the expression as $\frac{a+5}{b}$

andreyandreev [35.5K]3 years ago

4 0

note that the denominators are the same. Add the numerators.

a + 5 = a + 5 (as you cannot combine constants and variables).

? = a + 5 is your answer

hope this helps

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Solve the following system of equations by substation.

Cerrena [4.2K]

Answer:

C. (-1, 3)

Step-by-step explanation:

Label the 2 equations:

5y= 7x +22 -----(1)

x= -6y +17 -----(2)

Substitute (2) into (1):

5y= 7(-6y +17) +22

5y= -42y +119 +22 (Expand bracket)

5y= -42y +141 (Simplify)

42y +5y= 141 (+42y on both sides)

47y= 141

y= 141 ÷47 (÷47 on both sides)

y= 3

Substitute y= 3 into (2):

x= -6(3) +17

x= -18 +17

x= -1

Thus, the solution is (-1, 3).

7 0

2 years ago

PLZ HELP I'M SO CONFUSED AND THIS IS TIMED

alexandr402 [8]

Value of x is 30°

Answer:

Solution given:

x°+(5x)°=180°[being straight line which sum of angle is 180°]

adding like terms

(6x)°=180°

dividing both side by 6

(6x)°/6=180°/6

x=30°

5 0

2 years ago

Read 2 more answers

Solve for x. −(−2−5x)+(−2)=18 x=−90 x=−185 x=185 x = 90

Shtirlitz [24]

-(-2-5x)+(-2)=18
2+5x-2=18
5x=18
x=18/5=3.6

5 0

2 years ago

Read 2 more answers

Project: slang

RoseWind [281]

The purpose of using slang is mostly for social purposes such as:

It is use as a kind of identity identify for any members of a group.
It is often used to oppose an already set up authority.

<h3>What is the use of slangs about?</h3>

Slangs is often used in the Sharing and keeping of a constantly altering vocabulary aids.

It is used to show group solidarity and it is often used to include or exclude members.

The common sports slangs are:

“Game of inches”
“Lost a step”
“The ball is in their court”

Learn more about Slangs from

brainly.com/question/476021

#SPJ1

7 0

1 year ago

Please show all your work!!!

Alex73 [517]

Answer:

y= -6/5x -3

Step-by-step explanation:

So for now lets bring it into mx + b format

Subtract 6x from both sides to isolate y which is also called subtraction property of equality.

so 5y = -6x -15

Now you divide both sides by 5 which is called division property of equality.

You now have y = -6/5x - 3

y= -6/5x -3 is the slope intercept form of the standard form equation of 6x + 5y = -15.

Hope this helps!

3 0

2 years ago