What mathematics concepts or principles did you apply to come up with the solution of each equation? explain how you applied these.please help me .....

Answers

Answer 1

Answer: You need to look at the question again, and notice the words "... did you ...".
From those words, it's clear that the question comes AFTER you have solved
several equations, and now, this question is asking you how you solved them.

The only way for YOU to answer this question is to solve the equations first.

And if you want someone ELSE to tell the math concepts and principles that
are used to solve them, then you have to show him what the equations are.

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During your first week of training for a marathon, you run a total of 10 miles. You increase the distance you run by twenty percent. How many miles do you run during your twelfth week of training?
Here is a picture of a math problem.

HELP ASAP THIS IS DUE IN 5!!!!Find the slope of the line.

O -2/5
O 2/5
O 5/2
None of the above

Answers

Answer:

2/5

Step-by-step explanation:

Gary earned a gross pay of $1,047.30 last week. Using the fact that Social Security tax is 6.2% of gross pay, determine the amount of Social Security tax deducted from Gary’s gross pay.

Answers

SS tax is 6.2% of 1,047.30

In math "of" means times, so

.062 x 1047.30 = 64.9326

Rounded to the nearest cent $64.93

Edwin and Anthony are building a rectangular deck in their backyard. The longer side is 2 ft more than 1/3 of the perimeter. The shorter side is 1/10 of the perimeter. They also know that the longer side is 9 ft longer than the shorter side. What is the perimeter of the deck?

Answers

Answer:

30 ft

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

Let

Perimeter = x

Length = 1/3x + 2

Width = 1/10x

Length = 9 + 1/10x

Perimeter of the deck = 2(length + width)

x = 2(1/3x + 2 + 1/10x)

x = 2(10x+3x/30 + 2)

x = 2(13/30x + 2)

x = 26/30x + 4

x - 26/30x = 4

30x-26x/30 = 4

4/30x = 4

Divide both sides by 4/30

x = 4 ÷ 4/30

= 4 × 30/4

x = 30 ft

Length = 1/3x + 2

= 1/3(30) + 2

= 30/3 + 2

= 10 + 2

= 12 ft

Width = 1/10x

= 1/10(30)

= 30/10

= 3 ft

Length = 9 + 1/10x

= 9 + 1/10(30)

= 9 + 30/10

= 9 + 3

= 12 ft

The perimeter of the deck = x = 30 ft

Find value of x and y

4.)2x-3y=-15
x=4y

Answers

$\left\{\begin{array}{ccc}2x-3y=-15\nx=4y\end{array}\right\n\nsubstitute\n\n2\cdot4y-3y=-15\n8y-3y=-15\n5y=-15\ \ \ \ \ |both\ sides\ :5\ny=-3\n\nx=4\cdot(-3)=-12\n\nSolution:x=-12\ and\ y=-3.$

2x - 3y = -15
x = 4y
substitute x frm eq2 to eq1
2 (4y) - 3y = -15
8y - 3y = -15
5y = - 15
y = -3
substitute y in eq2
x = 4(-3)
x = -12
y = -3 , x = -12

What is the measurement of JL?

Answers

Answer:

180 - 90 - 62 = 28

17 /sin90 = x/sin28

x = 7.98

x = 8.00

So JL measures 8

The measurement of JL is 8

A sequence is defined that the first term is 4 and each term after the first term is found by adding 4 5 to the preceding term. What is the 8th term of the sequence?

Answers

The 8th term of the sequence is 9.6
Hope this helped! :)

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