Help with elimination

Many Thanks

Help With Elimination Many Thanks

Answers

Answer 1

[tex]\left \{ {{-6y = -12} \atop {3x + 2y = -2}} \right. <=> \left \{ {{y = 2} \atop {3x + 2y = -2}} \right. <=> \left \{ {{y=2} \atop {3x + 2*2 = -2}} \right. <=> \left \{ {{y=2} \atop {3x = -6}} \right. <=> \left \{ {{y=2} \atop {x=-2}} \right.\\ => \left \{ {{y=2} \atop {x=-2}} \right.[/tex]


Related Questions

the cost of 6 kg of oranges is rs 540 how many kilograms of oranges can be purchased for rs 720​

Answers

Answer:

This will clear you

Step-by-step explanation:

Given:-

Cost of 6 kg oranges =540

Cost of 1 kg oranges =540/6

=90

Now,

Orange can be purchased =720-540

=180

Again,

Remaining rupees =180/90

=2

Also,

We can buy oranges = 6kg+2kg

=8kg

If the cost of 6 kg of oranges is rs 540, for Rs. 720, you can purchase 8 kilograms of oranges.

To find out how many kilograms of oranges can be purchased for Rs. 720, we need to calculate the cost per kilogram of oranges.

Given that the cost of 6 kg of oranges is Rs. 540, we can find the cost of 1 kg of oranges by dividing Rs. 540 by 6:

Cost of 1 kg of oranges = Rs. 540 / 6 = Rs. 90

Now that we know the cost of 1 kg of oranges is Rs. 90, we can determine how many kilograms of oranges can be purchased for Rs. 720 by dividing Rs. 720 by the cost per kilogram:

Kilograms of oranges that can be purchased = Rs. 720 / Rs. 90 = 8 kg

So, for Rs. 720, you can purchase 8 kilograms of oranges.

In summary, to find the kilograms of oranges that can be purchased for Rs. 720, we divide the given amount by the cost per kilogram, which is obtained by dividing the cost of 6 kg of oranges by 6. The result is 8 kg of oranges that can be bought for Rs. 720.

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a big beach towel has a width that is 3 feet less than its length. Of the towels area is 28 feet, what is its length

Answers

Answer:

the answer is 9.333

Step-by-step explanation:

because if the towel of the width that is 3 feet less so you do 28/3=9.333

Answer:

length = 7 ft

Width = 4 ft

Step-by-step explanation:

length = l

Width = l -3

Area = 28 sq.ft

length *width = 28

l*(l-3) = 28

l*l - l*3 = 28

l² - 3l - 28 =0

l² - 7l + 4l - 28 = 0

l(l - 7) + 4(l - 7) = 0

(l -7) (l + 4) =

l -7 =  0  {Ignore l + 4 = 0 as , it gives a negative value}

l = 7 ft

width = 7 - 3= 4

what is the greatest number of relative maximum that a polynomial of degree 15 can have? Select the right answer among them 1. 14 2. 6 3. 9 4. 7 5. 4

Answers

Answer:

7

Step-by-step explanation:

The greatest number of relative maxima it can have is 14.

So, the correct answer would be option (1) 14.

Use the concept of a polynomial defined as:

An expression that consists of exponents, variables, and constants and that is combining many different mathematical procedures:

Addition, subtraction, and multiplication is referred to as polynomial.

Given that,

The degree of polynomial  = 15

The objective of this question determine the number of relative maxima it can have.

The number of relative maxima that a polynomial can have is equal to its degree minus 1.

In this case:

The polynomial is of degree = 15,

Hence,

The greatest number of relative maxima it can have is 15 - 1 = 14.

So, the correct answer would be option (1) 14.

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If 12 inches = 1 foot, and 3 feet = 1 yard, how many inches are there in 2.5 yards? step by step

Answers

if 1 yard = 3ft
2.5 yards = 7.5ft
12inch x 7.5 = 90
ANSWER: 90 inches

Jim holds $50.000 in money at the beginning of the year. The annual inflation rate is 2 percent, and the price level rises from 10 to 1.02. What is the "inflation tax" that Jim pays at the end of the year? Jim pays an inflation tax of

Answers

Based on the inflation rate and the amount he had at the beginning of the year, Jim will pay an inflation tax of $1,000

Inflation tax refers to the value lost out of the cash holdings that a person has as a result of inflation.

With inflation being 2%, Jim would lose 2% of his cash holdings which translates to:

= Cash holdings x Inflation rate

= 50,000 x 2%

= $1,000

In conclusion, Jim will pay an inflation tax of $1,000.

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Korey completely covered a square counter top using 103.5 ftof tile without any overlap.
Which measurement is closest to the side length of this counter top in feet?
10 ft
O 11 ft
O 27 ft
O 55 ft

Answers

Answer:

10 ft

Step-by-step explanation:

10² = 100

11² = 121

Answer: 10 ft

After solving a series of mathematical problems using a complicated formula, Mark uses the same formula to solve another problem he could have solved using a much simpler formula. Mark's continued reliance on the complicated formula BEST illustrates:

Answers

Answer:

C. mental set

Step-by-step explanation:

A mental set generally refers to the brain's tendency to stick with the most familiar solution to a problem and stubbornly ignore alternatives. This tendency is likely driven by previous knowledge (the long-term mental set) or is a temporary by-product of procedural learning (the short-term mental set).

Simplify the expression using the order of operations.
4+(3+2)2
= 4+
2
= 4+
=

Answers

Step-by-step explanation:

4+(3+2)2

4+(5)2

4+10

14

HELP I WILL GIVE BRAINLEST

Answers

Answer:

the answer is A

Step-by-step explanation:

Sin is for a and in this picture a is y

find the number that makes the ratio equivalent 1:5. 7:

Answers

Answer:

35

Step-by-step explanation:

1. We can write the ratios as fractions of: [tex]\frac{1}{5} =\frac{7}{x}[/tex]. Now, we solve for the variable x.

2. (Solving)

Step 1: Cross-multiply.

[tex]1*x=7*5[/tex] [tex]x = 35[/tex]

Therefore, the number that makes the ratio equivalent is 35.

Answer:

1:5 & 7:35

Step-by-step explanation:

7 x 5 = 35

Which graph best represents the solution set of y + 8/3x > 4

Answers

Which graph best represents the solution set of y + 8/3x > 4 ?

Letter D. is the answer :)

Hope It's Help


The data points in the table show minutes on phone calls Identify the missing values in the table.
per day, x, and text messages sent per day, y. The least-
squares regression line for the data is j = 100 - 0.5x.
Use this table to answer the question.
A=
B=
C =
D =

Answers

Answer:

A= 5

B= 0

C= 50

D= -5

Step-by-step explanation:

Just did it on EDGE

Can someone help me please?

Answers

Answer:

5.9 x [tex]10^{12}[/tex]

Step-by-step explanation:

what is the inequality for the graph

Answers

Y >= 2X - 5

Step-by-step explanation:

yeah-ya..... right?

what is 3/4 x 2/3 as a fraction

Answers

Answer:

6/12 or 1/2

Step-by-step explanation:

Multiply Across

Numerators 3 x 2 = 6

3 x 4 = 12

6/12

(or 1/2, simplified)

[tex] \\ \frac{3}{4} \times \frac{2}{3} [/tex]

[tex] \\ = { \cancel{ \frac{3}{4} }} \times { \cancel{ \frac{2}{3} }}[/tex]

[tex] \\ = \frac{1}{2} [/tex]

3(2x + 5) + 4(3c - 2)

Answers

Answer:

6x+12c+7

Step-by-step explanation:

3(2x+5)+4(3c-2)

3*2x+3*5+4*3c-4*2

6x+15+12c-8

6x+12c+7

Answer:

[tex]12c+6x+7[/tex]

Step-by-step explanation:

Use the distributive property to simplify the expression accordingly:

[tex](6x+15)+(12c-8)[/tex]

[tex]12c+6x+7[/tex]



The ratio of pages Kim reads to
minutes that pass is 10:15. How
many minutes will pass if Kim
reads 40 pages?

Answers

Answer:

40:60

Step-by-step explanation:

heres if u need the work,

10:15

40:?

10x4=40

15x4=60

40:60

Answer

she will read for 1 hour

Step-by-step explanation:

:)

3. What is 5% of 120?
A. 5
B. 6
C. 10
D. 12

Answers

Answer:

B

Step-by-step explanation:

5% of 120

= [tex]\frac{5}{100}[/tex] × 120

= 0.05 × 120

= 6

If 2x = 3y + 11 and 2 to the power of x = 2 to the power of 4(y+1), determine the value of x + y

Answers

Z = -2

Y = 5

is your answer

Five players are given $10 each and asked to contribute any portion of it to a group account. They are also told that the total collection will be doubled and distributed equally among each of them. In this case, the players are likely to contribute __________.

Answers

Answer:

nothing

Step-by-step explanation:

50 POINTS

Consider this equation: 2/3x - 9 - 2x+2=1
Which is an equivalent equation after combining like terms?

O 8/3x - 11 = 1
O -4/3x - 7 = 1
O 8/3x - 7 = 1
O -4/3x - 11 = 1

Answers

Answer:

-4/3x-7=1

Step-by-step explanation:

just combine like terms

Image below: Mathematics help!

Answers

Answer:

x=10/3, y=6

Step-by-step explanation:

since t and s intersect, we have 2/4 = 3/y, cross multiply to get 2y=12 so y=6

we also have 2/x=3/5 because a and b are parallel, cross multiply to get 3x=10, so x=10/3

Answer:

Step-by-step explanation:

A squirrel burrowed 10 holes in 8 minutes. How many holes could the squirrel burrow in 12 minutes?

Answers

Answer:

15

Step-by-step explanation:

Fast and loose: To go from 8 to 12 minutes you're adding half the time (4 minutes). So it has time to burrow only half the holes in the extra time, so 5. Total, 10+5=15.

Crunching numbers: it's a simple proportion:[tex]10:8 = x :12[/tex] from which, cross-multiplying you get [tex]8x=12\times10 \rightarrow 8x=120 \rightarrow x=15[/tex]

topanga is a college student who does photography and videography to earn money. she spent $300 on her camera to start up her buisness on campus. table below shows the money she earned (f(x)). She will earn money by the hour. Will give branliest for answer, if you want​

Answers

Answer:

400!

Step-by-step explanation:



1.Find the missing fraction, decimal, or percent. Reduce fractions to the lowest terms.

Question: 93% what is the equivalent fraction and decimal?

Hint: separate your answers for the missing information with a comma make sure not to have

additional spaces in your answers. Ex: 93/100,93 Ex: 93%,.93 Ex: 93/100,93%*

Answers

Answer:

93/100 as a fraction. 0.93 as a decimal.

Step-by-step explanation:

Match the Vocab Word to the definition.

Remember, you are allowed to use your notes to help you!
Question 1 options:

Multiply a sum by multiplying each addend separately and then adding the products.
∙a(b + c) = ab + ac
∙k(m – n) = km - kn

Part of an expression that is added or subtracted.
∙These can be a single number or a variable, or
numbers and variables multiplied together.

A letter or symbol that represents a value.

It's a number on its own, it has a fixed value.

The number in front of a variable.

1.

Distributive Property
2.

Term
3.

Variable
4.

Constant
5.

Coefficient

Answers

Distributive property, multiply a sum by multiplying each added separately and then adding the products a(b+c)=ab+ac k(m-n)=km-kn

Term, Part of an expression that is added or subtracted. These can be a single number, variable, or numbers and variables multiplied together.

Variable, A letter or symbol that represents a value.

Constant, It’s a number kn it’s own, but it has a fixed value.

Coefficient, the number in front of a variable.


Hope this helped!!

Complete the following conversation.
A. Customary Units
1.) 42in=_____ft
2.) 5ft=_____in​

Answers

Answer:

42in =3.5ft.

5ft=___60in

A rope 64 m long is cut into 3 pieces. The second piece is 3 times as long as
the first piece. The third piece is 4 times as long as the second piece. Find
the length of each piece of rope.

Answers

Answer:

rope 1=4m ,rope2=12m ,rope3=48m

Step-by-step explanation:

let the first number be y .second be 3y.third be 4(3y).y+3y+4y=64

after adding use substitution.

brainly helpppp me out

Answers

Answer:

D

Step-by-step explanation:

I think it might be (D) $2x-5

Bridget was thinking of a number. Bridget adds 11 then divides by 9 to get an answer of 67.
Form an equation with x from the information.

Answers

Answer:

Bridget was thinking of the number 592

correct??

Step-by-step explanation:

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