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DochEvi [55]
3 years ago
13

Please help I’m failing math.

Mathematics
2 answers:
trasher [3.6K]3 years ago
7 0

Answer:

The point (5, -4) is a solution to the system because it satisfies both equations.

Step-by-step explanation:

4y = -3x - 1:

  • 4(-4) = -3(5)-1
  • -16=-15-1
  • -16=-16

2y = x - 13

  • 2(-4)=5-13
  • -8=-8
Morgarella [4.7K]3 years ago
5 0

Answer:

Look below

Step-by-step explanation:

Start by plugging (5, -4) into both equation:

4y=-3x-1\\4(-4)=-3(5)-1\\-16=-15-1\\-16=-16\rightarrow correct!

2y=x-13\\2(-4)=5-13\\-8=-8\rightarrow correct!

It is a solution because it satisfies both equations.

OR

It is a solution because it is the point of intersection of the two lines.

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8. Mr. Azu invested an amount at rate of 12% per annum and invested another amount. GHe
drek231 [11]

Answer:

GH¢.37480.36

Step-by-step explanation:

Let the amount invested at 12% per annum =GH¢.x

He  invested 580.00 more than the first at 14%.

Therefore:

The amount invested at 14% =GH¢.(x+580)

For each investment option:

Amount Accrued =Principal + Simple Interest

Amount Accrued at 12%

=x+x*0.12\\=1.12x

Amount Accrued at 14%

=(x+580)+0.14(x+580)\\=x+580+0.14x+81.2\\=1.14x+661.2

Mr. Azu had total accumulated amount of  GH42,358.60

Therefore:

1.12x+1.14x+661.2=42,358.60

2.26x=42,358.60-661.2

2.26x=41697.4

x=GH¢.18450.18

Therefore:

The amount invested at 12% per annum= GH¢.18450.18

The amount invested at 14% per annum= GH¢.18450.18+580

=GH¢.19030.18

Mr Azu's Total Investment = 18450.18 +19030.18

=GH¢.37480.36

6 0
3 years ago
Find all solutions of the given system of equations and check your answer graphically. hint [see examples 1-4.] (if there is no
zlopas [31]

x − y = 0 = difference

x + y = 4 = sum


Can be solved by the sum and difference rule (most of the time without pen and paper)

x=(sum+difference)/2=0+4/2=2

y=(sum-difference)/2=(4-0)/2=2

6 0
4 years ago
If f(x) = 4<br>how much is f(6*x)? <br><br>​
Bingel [31]

Answer:

24

Step-by-step explanation:

x=4

f(6*x) becomes f(6*4)

f(6*4)=24

5 0
3 years ago
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Zigmanuir [339]
56 times 2 is 112. But if you have a device to access brainly on, then I'm sure you have a calculator.
6 0
4 years ago
Read 2 more answers
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belka [17]
i think we need some more information or something is there any other information that they give you for this question?
7 0
3 years ago
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