Solve the system by graphing.check your solution
3x-y=3
-3x-y=-9

Answer:

[tex] - 9 - |9 - 3 - 5 | \\ - 9 - |1| \\ - 9 - 1 \\ - 10[/tex]

Answer:  The correct answer is:  " - 10 ".

___________________
      However, this answer, " -10 ", does not correspond to any of the answer choices given.
___________________

Step-by-step explanation:

Given:  -9 −︱9 + (-3) + (-5)︱ ;

We are to simplify this expression by using the 'order of operations'—as follows:
__________________
BE  MD AS   ;  or:  PE  MD AS
       ⇒   ⇒                      ⇒    ⇒
__________________
  which is a mnemonic device to remember the "order of operations":
       Be Excused, My Dear Aunt Sally (Susan).

or:  Please Excuse My Dear Aunt Sally (Susan).

Note:  the "B" stands for "Brackets" ,
and the  "P" stands for "Parentheses."

Note that "parentheses" can function as "brackets."
The "E" stands for "Exponents".
 → The "Brackets/Parentheses" —if they occur; take priority.

Then:  MD for "Multiplication and Division" are the next priority;
            ⇒
________
 →  and that neither takes priority over the other. Take note of the " ⇒ " symbol" below the "MD".  This means that we perform "multiplication and division"—as they occur, from the far left of ["beginning of"] the expression to the end of the expression.
 Then:  We do the same with "Addition and Subtraction"—from the beginning to the end of the expression, in that order [that is, from "left to right"—as/if they occur]—hence the "⇒" notation.
_____________________
So again, our given expression is:
 " -9 −︱9 + (-3) + (-5)︱ " ;

So; we have an "absolute value" (the positive integer of what is enclosed within the "vertical lines" that indicate "absolute value"—or, if the value of what is enclosed within the "vertical lines" is "0" [zero], then the absolute value would be "0" [zero]; since the absolute value of 0 is 0.
____________
So, let's start simplifying by using the 'order of operations.'
  Do we have brackets or parentheses?  No; except for the absolute value lines — which do take priority. The parentheses within those lines do not count for our purposes—but if they did, then we would use the order of operations within the "absolute value" bars!
       So as a matter of 'semantics', we could say: 'Yes"; that the absolute value bars function as "brackets."

 Do we have any "exponent(s)"?  No.
 Is there any multiplication/division? No.
 Do we have any addition or subtraction?  Yes; only one:
              →   " - 9 −︱9 + (-3) + (-5)︱.
             →   {not including the addition and subtraction within the absolute value bars.}.
____________
Let's start by simplifying the expression within the absolute value bars:
  ︱9 + (-3) + (-5)︱;

Note: The only operations are additional and subtraction; so we just calculate from left to right; as these operations  occur:
 " 9 + (-3) " = 9 − 3 " ;  Note:  Adding a "negative value" is the same as subtracting a "possible value" ;
 to get:  " 6 " ;  
 Then:  the next step is:
     " 6 + (-5) " = 6 − 5 " ;  Note:
Adding a "negative value" is the same as subtracting a "positive value" ;
      to get:  " 1 ".
Now, the absolute of  " 1" is " 1".

 → or; write as: ︱1︱= 1 .  

Now, we can rewrite the entire expression:

 " - 9 − 1 " ;  to calculate and simplify:  
   to get:  " - 10 " .
__________________
Hope this answer is correct and helpful!
__________________
  However, this answer, "-10", does not correspond to any of the given answer choices.
__________________
Best wishes!
__________________

Answer:

Local Minimum: (-2.5, -2), (0, -2)

Local Maximum: (1, 2)

Answer:

Step-by-step explanation:

12/x = x/16

x^2 = 192

x = ± √192 = ± 8√3

Answer: 74.5

6 drinks would cost 34.5 dollars
5.75 x 6 = 34.5
8 bags of popcorn would cost 40 dollars
5 x 8 = 40

Now add both numbers
40 + 34.5 = 74.5

74.5 is our answer

hope this helps :)


                                               
                                             

Answer:

Popcorn:40 Drinks:34.5

Step-by-step explanation:

All you gotta do is 5 times 8 for the popcorn and that would equal 40. For the drinks 5.75 times 6 abd you'll get 34.5 Sorry if I'm wrong

Answer:

6000

Step-by-step explanation:

6000

divide by 12

72000 ÷ 12 = 6000

part 2

often to get the yearly salary if you have an hour salary

quickest math to get that is to multiply by 20

so if someone makes 20 an hour its probably

40000 per year

Answer:

$6,000

Step-by-step explanation:

Because his yearly salary is $72,000 (72k).

You need to divide $72,000 by 12, because there is 12 months in a year.

Hope this helps! If you need further explanation, I’ll be happy to help!

<3

Answer:

A is Perpendicular

B is Neither

C is Parallel

Swimmer is 47 dm away from the sailboat.

The mentioned problem will use cosine trigonometric functions to find the distance between swimmer and sailboat. Assuming the distance between lifeguard and swimmer be x and the distance between lifeguard and sailboat be y.

Taking the triangle between swimmer and lifeguard -

cos theta = base/hypotenuse

cos 32 = x/36.5

x = 0.8×36.5

x = 29.2 dm

Taking the triangle between lifeguard and sailboat -

cos 13 = y/84.7

y = 0.9×84.7

y = 76.23 dm

Therefore, the distance between sailboat and swimmer is y - x

Distance = 76.23 - 29.2

Performing subtraction

Distance = 47.03 dm

Round to nearest tenth

Distance = 47 dm

Thus, the sailboat and swimmer are 47 dm apart.

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For equation f/3-1=1 the value of f is 6

In this question, we have been given an equation f/3-1=1

We need to solve given equation for f.

⇒ f / 3 - 1 = 1                        ................(Given equation)

⇒ f/3 = 1 + 1                            .................(add 1 to each side)

⇒ f/3 = 2                            

⇒ f = 2 × 3                           ....................(Multiply each side by 3)

⇒ f = 6

Therefore, For equation f/3-1=1 the value of f is 6

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Antidisestablishmentarianism

Answer: 16 drops

Step-by-step explanation: For every 2 drops is 5 ounces. We can set up an equation such as: 2/5*8/8=16/40. If you divide 40/5 you get 8, and now multiply by 2, you get 16.

As a result, angle M's supplement is 167 degrees, while angle M's complement is 77 degrees.

Angles that add up to 180 degrees are referred to as supplementary angles. For instance, angle 130° and angle 50° are complementary angles since the sum of these two angles is 180°. The sum of complimentary angles is 90 degrees. If the two additional angles are combined, they create a straight line and an angle.

Complementary angles are those whose combined angle is 90 degrees or less. To put it another way, two angles are said to be complimentary if they combine to make a right angle. In this case, we say that the two angles work well together.

So as per the given information:

we know that

a).  180-angle M=supplement of angle M

180-13=167 degree

b).  90-angle M=compliment of angle M

    =77 degree

Therefore, the supplement of the angle M is 167 degree and the complement of angle m is 77 degree.

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Answer:

year 7 have 135 students

year 9 have 45 students

Step-by-step explanation:

200=total students

360=value of the whole chart

1/2×360

=180

year 8 have 180students

360-180=180

the students remain are 180

1/4×180

=45

year 9 have 45 students

180-45

=135

year7 have 135 students

A fter solving system of equations, we can conclude that, you should buy 60 Polo Shirts, 20 T- Shirts, 120 Rugby Shirts.

Let, x be the number of T-shirts, y be the number of polo shirts and z be the number of rugby shirts

A clothing store and budget $6000 to restock 200 shirts.

So, we get an equation,

x + y + z = 200                      ...................(1)

If you want to have twice as many rugby shirts as polo shirts.

So, we get an equation,

z = 2y                                   ......................(2)

You can buy T-shirts for $12 each, polo shirts for $24 each, and rugby shirts for $36 each.

So, we get an equation,

12x + 24y + 36z = 6000

We rewrite above expression as,

x + 2y + 3z = 500                         ..............(3)

Now we substitute z = 2y, into equations (1) and (3)

x + y + 2y = 200

x + 3y = 200                               ..................(4)

and equation (3) becomes,

x + 2y + 3(2y) = 500

x + 8y = 500                               ...............(5)

After solving equations (4) and (5) we get,

y = 60 and x = 20

Now substitute above value of y in equation z = 2y

z = 2(60)

z = 120

Therefore, after solving system of equations, we can conclude that, you should buy 60 Polo Shirts, 20 T- Shirts, 120 Rugby Shirts.

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Ratio of number of boys to total number of children is 3:4 and number of girls is 8

The comparison of two values using the same unit is called a ratio. Divide the first amount by the second to get it. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0.

Let the number of boys be 3x and girls be x.(As they are in ratio of 3:1)

a) Total number of children = 3x + x = 4x

Ratio of number of boys to total number of children = [tex]\frac{3x}{4x}[/tex]

= 3:4

b) As, number of boys are 24

3x = 24

x = 8

, number of girls = x = 8

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y=−0.2x+2.2 is the equation of line  from the given graph .

In order to put the equation in y-intercept (y=mx+b) form and determine the equation of a graphed line, you must first determine the slope and y-intercept. The slope is the ratio of the change in y to the change in x.

(-4 , 3 ) and ( 6 ,1 )

these are two points we will use to find the equation of the line

Slope is -0.2

Intercept is 2.2

y=−0.2x+2.2 is the equation of line

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Based on the beginning balance to Jackie's account and the deposits as well as the checks written, the balance at the end of the month was $644.86

At the end of the month, the simple formula to determine Jackie's balance is:
= Beginning balance + Cash inflows - Cash outflows

This means that to calculate the balance on Jackie's account at the end of October gives:

= Beginning balance + Deposits + Interest earned - Checks written - maintenance fee

= 432.23 + 752.34 + 3.42 - 532.13 - 11

= $644.86

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[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \:4\pm c [/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

The given expression is :

[tex]\qquad \tt \rightarrow \: 5 - |c + 1|[/tex]

[tex]\qquad \tt \rightarrow \: 5 - 1 - |c|[/tex]

[ as 1 is a positive number, it can come out of modulus function as it is ]

[tex]\qquad \tt \rightarrow \:4- |c| [/tex]

Now, there are two cases possible.

Case 1 :

[tex]\qquad \tt \rightarrow \: 4- c[/tex]

[ if c is a positive number, it will come out of modulus as it is ]

Case 2 :

[tex]\qquad \tt \rightarrow \: 4 - (-c)[/tex]

[tex]\qquad \tt \rightarrow \: 4 + c[/tex]

[ if b is a negative number, it will come out of modulus with a negative sign, to make the overall term out of modulus positive ]

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

The fraction of the reading assignment done by Tuesday night is 1/2.

Given:

Let the total reading assignment be x.

Fraction of the reading assignment finished by Tori on Monday afternoon = (1/6)x

Fraction of the reading assignment finished by Tori on Tuesday afternoon = (1/3)x

The fraction of the reading assignment done by Tuesday night is,

Total - Fraction of the reading assignment completed by Tori

= [tex]x -(\frac{x}{6} + \frac{x}{3} )[/tex]

= [tex]x -(\frac{x+ 2x}{6} )[/tex]

= [tex]x - \frac{3x}{6}[/tex]

= [tex]x -\frac{x}{2}[/tex]

= [tex]\frac{2x-x}{2}[/tex]

= [tex]\frac{x}{2}[/tex]

So, 1/2 of the reading assignment(x) was done by Tuesday night.

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Answer:

7

Step-by-step explanation:

3-7=(-4), -2*(-4)=8, 4+8+16=28, 28/4=7

Answer: YES

Step-by-step explanation:

The percentage of customers who chose whole wheat bread with turkey are 19 %.

Given that:-

Percentage of customers who preferred white bread = 55 %

Percentage of customers who preferred turkey with white bread = 46 % of those who like white bread.

Percentage of customers who preferred ham with whole wheat bread = 55 %

We have to find the percentage of customers who chose whole wheat bread with turkey.

Let the total number of customers at the local sandwich shop be 100x.

Percentage of customers who preferred whole wheat bread = (100-55) % = 45 %

45 % of 100x = 45x.

Percentage of customers who preferred turkey with whole wheat bread = (100-58) % of 45x = 42 % of 45x.

42 % of 45x = 18.9x ≈ 19x.

19x is 19 % of 100x.

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Answer: The answer is A, 19%

Step-by-step explanation: I had the same question.

Amount of water produced in 6 days is 15.6×10⁶.

We will simply perform multiplication to find the amount of water produced in 6 days.

Amount of water produced in 6 days = amount of water produced in one day × 6

Amount of water produced in 6 days = 2.6×10⁶×6

Performing multiplication to find the amount of water produced in 6 days

Amount of water produced in 6 days = 15.6×10⁶

The answer is in scientific notation as 15.6 is coefficient, 10 is base and 6 is exponent. Therefore, amount of water produced by plant in 6 days is 15.6×10⁶.

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Simplification the expression in scientific notation 3.6 x 10^(-5)

What is Simplification ?

To implify is to make something simple. In mathematics, simply or simplification means reducing the expression/fraction/problem in a simpler version. Calculations and problem-solving techniques simplify the issue.

We have to multiply the expression

(9x10^-3) (4x10^-3)

We can rewrite this multiplication as

(9 x 4) x (10^-3 x 10^-3)

Now, use the exponent rule,

a^n x a^m = a^(n+m)

(9 x 4) x (10^(-3-3))

(9 x 4) x (10^(-6))

36 x 10^(-6)

Finally, write in scientific notation

3.6 x 10^(-5)

Hence, the scientific notation of the expression is 3.6 x 10^(-5)

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The length of rectangular yard given its perimeter and width is 300 inches

A rectangle is a 2-dimensional quadrilateral with four right angles that sum up to 360 degrees. A rectangle has two diagonals of equal length that bisect each other .

The perimeter of a rectangle is the distance round the rectangle. It is the sum of the length of the four sides of the rectangle.

Perimeter of a rectangle = 2 x (length + width)

54 = 2(l + 12)

54 / 2 = l + 12

27 = l + 12

l = 27 - 12

l = 25 feet

Now, convert feet to inches

25 x 12 = 300 inches

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Answer: 7 -(-3)=7+3=10

Step-by-step explanation:

If you multiply a negative sign be a negative number in parenthesis, then it becomes positive. So, -(-3) = 3

Can also be seen as -1*-3 = 3

The distributive property should be used to rewrite each expression without parenthesis as follows:

The distributive property of multiplication states that when the sum of two (2) or more addends are multiplied by a specific number, the same output (result) would be produced as when each addend is multiplied respectively by the number, and the products are added together.

Mathematically, the distributive property of multiplication is given by this expression:

a(b + c) = ab + ac.

In conclusion, the distributive property of multiplication can be used to evaluate and rewrite a mathematical expression as shown above.

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For the graph of the function, the new coordinates after the function translation is (D)  (-7,4), (-3,-5), and (6,2).

So, given function is f(x, y) with coordinates: (7,-4), (3, 5), and (-6, -2)

Therefore, for the graph of the function, the new coordinates after the function translation are (D)  (-7,4), (-3,-5), and (6,2).

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