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lys-0071 [83]
3 years ago
5

A student is evaluating the expression below for n = 3.7

Mathematics
2 answers:
spin [16.1K]3 years ago
8 0
1. substitute 3.7 for n
2. parentheses
3. multiplication
4. addition
iVinArrow [24]3 years ago
3 0

Given expression : 12.3 + 6 (n - 0.5)

Step 1 : substitute n = 3.7

12.3 + 6 (3.7 - 0.5)

Step 2 : Simplify the parenthesis

12.3 + 6 (3.2 )

Step 3 : Do the multiplication and open the parenthesis

12.3 + 19.2

Step 4 : Add the two number

12.3 + 19.2 = 31.5

So the answer of the given expression when n = 3.7 is 31.5

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If x-y =8 find the value of y when x=3
DedPeter [7]
Answer: y = -5

Substitute in 3 for x.
x - y = 8                            Substitution
3 - y = 8                            Subtract 3 from both sides
-y = 5                                Divide by -1 to both sides
y = -5                                Answer!

You can also check your work.
x - y = 8       
3 - (-5) = 8                  
3 + 5 = 8                        
8 = 8                                

8 0
3 years ago
Please help me im in need of serious help or ill flunk :(
Aleksandr-060686 [28]

Answer:

1. Interest: 15%

Amount owed: $500

2. Interest: 6%

Amount owed: $1,500

3. Interest: 18%

Amount owed: $12,500

4. Interest: 6%

amount owed: $5,000

Step-by-step explanation:

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3 years ago
Please Help Me ! Geometry Review
Mkey [24]

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Answer is 8. 484&pi=1520.53 which is the area

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Does -3(x-4)= -3x=12 have one solution, many solutions, or no solutions at all?
TEA [102]

Answer:

If the expression is:

-3x + 12 = -3x + 12, infinite solutions

If the expression is:

-3x + 12 = -3x - 12, no solutions

Step-by-step explanation:

Step 1: Distribute

-3x + 12 = 3x = 12

If both lines have the same slope and same y-int, they are the same line and therefore have infinite solutions.

If both lines have the same slope but different y-int, then they are parallel and therefore have no solutions.

4 0
3 years ago
Determine the perimeter of triangle AGN.
Harman [31]

Answer:

150

Step-by-step explanation:

The perimeter of a triangle is defined or given as the summation of all its 3 sides.

Mathematically,

The perimeter of a Triangle = Side A + Side B + Side C

In the above question, we are to find the perimeter of Triangle AGN.

In the diagram , we have an inscribed circle of RTE

Therefore these values are given in the question.

Side AR = 35

Side RG = 21

Side EN = 19

We have an inscribed Triangle in the question with its side touching the Triangle. This means we have lines that are tangent. Hence we have,

Side EG = Side RG = 21

Side TN = Side EN = 19

Side AT = Side AR = 35.

Therefore, The Perimeter of Triangle AGN = Side AT + Side AR + Side TN + Side EN + Side EG + Side RG

= 35 + 35 + 19 + 19 + 21 + 21

= 150

The perimeter of Triangle AGN is 150

3 0
3 years ago
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