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The value of x + y = - 53

What is Linear Equation in 2 variables?

An equation is said to be linear equation in two variables if it is written in the form of ax + by + c = 0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.

Given data ,

The value of x = - 87

The value of y = 34

The equation x + y is calculated by substituting the values of x and y in the equation ,

Therefore , x + y = ( - 87 ) + 34

                           = -53

Hence , the value of x + y is equal to - 53

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Answer: C

Step-by-step explanation: Since we know both the slope and the y-intercept we can plug them into Slope-Intercept form. Slope-Intercept form is y=mx+b

Since m = 2 and b = -3/4 all we have to do is replace both m and b in the form and that would be the answer. y = 2x-3/4

Answer:

17

Step-by-step explanation:

First, we notice that the triangle is isosceles . (In case you didn't know, the two tick marks on the sides of the triangle signify that they are congruent and have the same length.) Since the triangle is isosceles, we can apply the Base Angles Theorem.

The Base Angle Theorem states that the two angles opposite of the two congruent sides are also congruent. In this case, we can say that, because the angle measuring 29° and the third(top) angle are opposite to the two congruent sides, those two angles are congruent. Therefore, the third angle measures 29° as well.

Now that we know this, we can write the following equation:

29°+29°+(11x-65)° = 180.

Solving this equation, we have x = 17.

Hope this helps!

Answer:

Step-by-step explanation:

ok so

42≤0.45x+0.60y

x=pounds of finnishing nails

y=pounds common nails

when x+y≥30

now lets solve for y

y=-x+30

lets plug this in to the formula

42≤0.45x+0.6(−x+30)

x≤−160

nowing this lets plug in for x

x+y≥30

-160+y≥30

y≥190

Answer:

Step-by-step explanation:

42≤0.45x+0.60y

x=pounds of finnishing nails

y=pounds common nails

when x+y≥30

now lets solve for y

y=-x+30

lets plug this in to the formula

42≤0.45x+0.6(−x+30)

x≤−160

nowing this lets plug in for x

x+y≥30

-160+y≥30

y≥190

That's pretty cool you know.

Answer:

thats cool. hope he getting paid good

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

Total items = $39.90

Sales tax amount = $3.7905

Total cost = $43.691

The clerk's error is using 9.5 as sales tax amount instead of finding 9.5% of the total items

Step-by-step explanation:

Dress = $24.95

Skirt = $14.95

steps the clerk completed.

Step 1: 24.95 + 14.95 = 39.90

Step 2: 39.90 +9.5 = 49.40

Correct steps:

Total items = dress + skirt

= $24.95 + $14.95

= $39.90

Sales tax = 9.5%

Sales tax amount = 9.5% of total

= 9.5/100 × $39.90

= 0.095 × 39.90

= $3.7905

Total cost = Total + sales tax amount

= $39.90 + $3.7905

= $43.6905

To the nearest hundredth

= $43.691

Sales tax is the amount of money imposed by government on the sales of some items

Total cost is the cost of all items including sales tax

Given:

A committee of 6 members is to be chose from the 100 members of the U.S. senate.

To find:

The number of ways to form a committee.

Solution:

We have,

Total number of members = 100

Number of members needs to selected of committee = 6

Number of ways to select r items from total n items is

[tex]^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]

Number of ways to select 6 members from total 100 members is

[tex]^{100}C_6=\dfrac{100!}{6!(100-6)!}[/tex]

[tex]^{100}C_6=\dfrac{100\times 99\times 98\times 97\times 96\times 95\times 94!}{6\times 5\times 4\times 3\times 2\times 1\times 94!}[/tex]

[tex]^{100}C_6=\dfrac{100\times 99\times 98\times 97\times 96\times 95}{6\times 5\times 4\times 3\times 2\times 1}[/tex]

[tex]^{100}C_6=1192052400[/tex]

Therefore, the total number of ways to form a committee is [tex]^{100}C_6[/tex], i.e., equal to [tex]1192052400[/tex].

Answer:

[tex]a d = bc[/tex]

[tex]da = cb[/tex]

[tex]bc = ad[/tex]

Step-by-step explanation:

Given

[tex]\frac{a}{b} = \frac{c}{d}[/tex]

Required

Choose equivalent expressions

First, cross multiply

[tex]a * d = b * c[/tex]

[tex]a d = bc[/tex]

The product: [tex]a * d = b * c[/tex] can also be rewritten as:

[tex]da = cb[/tex]

Apply symmetric property of inequality

[tex]a d = bc[/tex] becomes [tex]bc = ad[/tex]

and

[tex]da = cb[/tex] becomes [tex]cb = da[/tex]

Answer:

54 square units

Step-by-step explanation:

ABCD = ABED + CED

A and B have same y coordinate

A and D have same x coordinate

AB ⊥ AD

AB = 4 - (-5) = 9

AD = 2 - (-3) = 5

EC = BC - AD = (2 + 5) - 5 = 2

ABCD = 9 x 5 + 1/2 (9 x 2) = 45 + 9 = 54

Answer:

33.3%

Step-by-step explanation:

Step one:

given data

Initial population (1980)= 12000

Final population(1990)= 16000

change in population= 16000-12000= 4000

Step two:

% increase= change in population/initail population *100

%increase= 4000/12000*100

%increase= 0.333*100

% increase= 33.3%

Answer:

22'00 the answer is 22'00 because u add it together

Answer:

y=2x+2

Step-by-step explanation:

b

Answer:

These triangles cannot be proven congruent

Step-by-step explanation:

If all sides and angles of a triangle is congruent to the corresponding sides and angles of another triangle, both triangles are congruent to each other.

This means, they have the same shape and size.

Invariably, knowing just the angles of two triangles are congruent to each other, is not enough to prove that the two triangles are congruent to each other.

Two triangles might have the same angle measure but different size lengths. This means they can have the same shape but different size.

With the information given in the diagram, we can only say that both triangles are similar to each other. However, we cannot prove they are congruent to each other.

Answer:

Step-by-step explanation:

Answer:

Last answer x=−6 if you want steps i can show you have a nice day i hope it is helpful

Answer and Step-by-step explanation:

In this inequality, we are solving for r. Just think of this as a normal equation, and worry about the sign at the end.

First, add 5 to both sides.

8r > 80

Now divide by 8 to both sides.

r > 10

So, r is greater than 10.

                          [     If the inequality had a negative number being divided, then the sign would flip.

For example:

-2x > 4

To solve this one, you would divide by -2 to both sides. Then, you would flip the sign.

x < 2                  ]

#teamtrees #WAP (Water And Plant)

Answer:

4.  last one

5. last one

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

when you take away the numbers and then divide it by what you have left and then add that will give you your awnser

Answer:

-3/4

Step-by-step explanation:

Answer:

-3/4 on EDG 2020

Step-by-step explanation:

Got it Right :)

Answer:

-4

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

20-12 = 8

8 times 2= 16

hope this helps :)

Answer:

a

Step-by-step explanation:

[tex]\boxed{\boxed{\pink{\bf \leadsto The \ price \ of \ a\ 18 \ min \ call \ is \ \$ \ . }}}[/tex]

According to Question ,The price of a 7-minute phone call is $2.45 . And we need to find the price of a18 minute phone call . So we will use unitary method here ,

[tex]\implies\bf Cost \ of \ 7 \ min. \ phone \ call \ is\ \$ \ 2.45 . \\\\\implies \bf Cost \ of \ 1 \ min. \ phone \ call \ will \ be \ \dfrac{\$ 2.45}{7} \\\\\implies \bf Cost \ of \ 18 \ min. \ phone \ call \ will \ be \ \dfrac{\$ 2.45}{7} \times 18 = \red{\$ 6.3 } [/tex]

Here it was a case of direct proportion in which if two things are directly proportional to each other. If one thing thing increases then the value of second also increases. Here if the time increases then the cost also increases.

Answer: D) cube root of 16

================================================

Explanation:

The rule we use is

[tex]x^{m/n} = \sqrt[n]{x^m}[/tex]

In this case, x = 4, m = 2 and n = 3.

So,

[tex]x^{m/n} = \sqrt[n]{x^m}\\\\\\4^{2/3} = \sqrt[3]{4^2}\\\\\\4^{2/3} = \sqrt[3]{16}\\\\\\[/tex]

Showing that the original expression turns into the cube root of 16.

Answer:

The answer would be B.

Step-by-step explanation: