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NISA [10]
2 years ago
11

Fill in the missing reason for the argument shown!

Mathematics
2 answers:
Shkiper50 [21]2 years ago
8 0
A Is the answer! Have a nice day!
Katyanochek1 [597]2 years ago
8 0
The answer would be D subtraction property
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39. Solve this system: 3x+y=-7 . 4x-y=14A. (–1, 10)B. (1, –10)C. (–1, –10)D. no solution
valkas [14]

Given,

The linear pair of the equation is,

\begin{gathered} 3x+y=-7 \\ 4x-y=14 \end{gathered}

Required

The solution of the linear equation.

Taking the equation first as,

\begin{gathered} 3x+y=-7 \\ y=-7-3x \end{gathered}

Substituting the value of y in second equation then,

\begin{gathered} 4x-y=14 \\ 4x+7+3x=14 \\ 7x+7=14 \\ 7x=7 \\ x=1 \end{gathered}

Substituting the value of x in first equation then,

\begin{gathered} 3x+y=-7 \\ 3(1)+y=-7 \\ y=-7-3 \\ y=-10 \end{gathered}

Hence, the solution of the system is (1, -10).

8 0
1 year ago
A circular pizza has a diameter 10cm.what is the approximate area of the pizza?(use pi=3)
irina1246 [14]
You would multiply 10 times \pi (3.14)you would multiply 10 times  \pi and get 31.40 cm squared and get 31.40 cm squared
4 0
3 years ago
Read 2 more answers
What is 87+x=100?<br> A. 13<br> B.41<br> C. 11<br> D. 20
Leto [7]

Hey there!

When we solve for x, we need to isolate x on one side.

This is just a one-step equation, meaning there is only one thing we need to do to solve for x, or isolate x.

Starting with 87 + x = 100:

Subtract 87 from each side.

87 <u>- 87</u> + x = 100 <u>- 87</u>

Simplify. Subtracting 87 from 87 makes it equal to 0.

x = 13

Your answer is A. 13.

Hope this helps!

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8 0
3 years ago
Read 2 more answers
How do you Convert 5 to qn improper Fraction?
dybincka [34]
I’m assuming you mean the whole number 5.

5/1 is an improper fraction of 5. You can also use 10/2 or 15/3.
4 0
3 years ago
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can someoen explain this Jordan used to be paid $16.50 and now he has received a promotion to be manager. now he is paid $21.00
Mrac [35]

Answer:

you subtract then you add on how much money you get know

Step-by-step explanation:

hope that helps

8 0
3 years ago
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