b) Solve the following system of equations using Elimination Method:
(2y - 1
-3
3x – y
2y = x - 2

Answer:

5/7

Step-by-step explanation:

:) hope this helps

Answer:

Antonia saved $5.39

Step-by-step explanation:

Candle:

$9.59 - $0.50 (coupon) = $9.09

Towel:

$21.43 - $2.75 (coupon) = $18.68

Dishes:

$21.43 x 10% = 2.143

$21.43 - $2.143 = $19.287, rounded to the nearest cent and it’s $19.29.

Calculate the amount of money saved by adding 0.50 + 2.75 + 2.143, which is 5.393. Round to the nearest cent and it will be $5.39.

Answer:

60 degrees

Step-by-step explanation:

I see 3 lines in the graphic.

1 horizontal line that gets crossed by 2 other lines - one at a 25 degree angle (and that line ends at the crossing point), and one at 60 degrees.

so, above and below the horizontal line, the line with 60 degrees and x degrees is the same line.

and therefore, as per the laws of crossing lines, the angles above and below the crossed line must be the same. they are just left-right mirrored.

therefore, x must be the same as the diametrically opposing angle above the horizontal line. and that is 60 degrees.

Answer:

set of M is {r,s,t}...........

Answer:

What is an amount between $2 and $10? (A) __$8________ What is an amount between $10 and $20? (B) ___$12_______ What is an amount greater than $50? (C) ___$51______ What is your name? (D) ___you should put your name here______________ What is the name of an item that you will buy only once? (E) __Answers will vary-one example is a stand mixer._______________ What is the name of an item that you will buy more than once? (F) __Bread_________ Create a word problem that leads to an inequality by filling in the blanks with your corresponding answers.

Today, you are buying two loaves of gluten free bread at $4 each for a total of $8. You are also buying a shirt that has your name on it for $12 and a stand mixer that costs over $51, but you're not sure how much more. How much are you spending today?

8+12+51 > x

x>71

Step-by-step explanation:

Click here to see ALL problems on Age Word Problems

 Question 1128242: The product of the three ages, in years of three teenagers is 4590. None of the teens are the same ages. What are the ages of the three teen ages? (Use guess and check)

A hat and a jacket cost $100. The jacket cost $90 more than the hat. What are the cost of the hat and the cost of the jacket?

Melody picks a number. She doubles the number, squares are result, divide the square by 3 subtracts 30 from the quotient and gets 18. What are the possible numbers that Melody could have picked? What operation does Melody perform that prevents us from knowing 100% certainly which she picked?

(Scroll Down for Answer!)

Did you know that Algebra.Com has hundreds of free volunteer tutors who help people with math homework? Anyone can ask a math question, and most questions get answers!

OR get immediate PAID help on:

Type Your Question

Go!!!

Answer by greenestamps(9721) About Me  (Show Source):

You can put this solution on YOUR website!

These are three very different problems. The rules of the forum are one problem per post. Please follow those rules in the future.

(1) Certainly guess and check is the easiest way to solve this problem, since you know the three ages are whole numbers. But you should be able to get to the solution with very few if any wrong "guesses" by making your guesses logically.

The product of the three ages is a multiple of 10, and therefore a multiple of 5; since all three ages are in the teens, one of them has to be 15. Then 4590/15 = 306.

You could do guess and check again from there. However, if you note that both the other ages have to be greater than 15, and you know the last digit of the product has to be "6", then the only possible pair of ages is 17 and 18. And indeed 17*18 is 306.

ANSWER: The ages are 15, 17, and 18.

(2) Here is an informal solution method using logical reasoning.

Take away the "extra" $90 that the jacket costs; you are left with a jacket and a hat that each cost the same, and the total is now $100-$90 = $10. That means each of them costs $5. Now add those extra $90 back on to the price of the jacket.

ANSWER: The jacket costs $95; the hat costs $5.

(3) Melody picks a number: Call it x.

She doubles the number: It is now 2x.

She squares are result: It is now (2x)^2 = 4x^2.

She divides the square by 3: It is now 4x^2/3.

She subtracts 30 from the quotient: It is now 4x^2/3-30.

The number she ends up with is 18.

Solve the equation that says 4x^2/3-30 = 18:

4x%5E2%2F3-30+=+18

4x%5E2%2F3+=+48

4x%5E2+=+144

x%5E2+=+36

x+=+6 or x+=+-6

ANSWER: The two possible starting numbers are 6 and -6. We get two possible answers because of the step where she squares the number.

Answer:

7 18-year olds

Step-by-step explanation:

The product is 2,971,987,200. 18^7 is 612,220,032. However, 18^8 is 11,019,960,576, which is too big. So, 7 is the answer

[tex]5667 \div 59 \\ \\ calculate \: \: the \: \: (approximate \: \: value) \\ \\ = 96.05085 \\ \\ \\ in \: \: alternte \: \: form \\ \\ = \frac{5667}{59} ,96 \frac{3}{59} \\ \\ \\ hope \: \: it \: \: helps[/tex]

1950:12

1990:70

70-12:58

58/40:1.45

1.45x40 :58

cada año le sumaban 1.45 a la barrita de cereal

saben que no me hagan caso ni yo se que acabo de hacer xd

Thus, the linear equation models the increase in the price of a loaf of bread will be 50x+12=70.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that, the average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents.

(Let x represent the number of years since 1900.)

The linear equation models the increase in the price of a loaf of bread will be.

y = bx + +c

70 = 50x + 12

The linear equation models the increase in the price of a loaf of bread will be 50x+12=70.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

25 is the answer id ont know how to explain it

Answer:

Well...I think the answer is a) Determine the amount of the required down payment.

Explanation:

Hope it helps you..

B-but,if i am wrong.. J-just correct me, okay??..

(;ŏ﹏ŏ)

A-and, Y-your welcome in advance..

(;ŏ﹏ŏ)(ㆁωㆁ)

Answer:

[tex](x - 3) ^2 + (y - 1)^2 = 4[/tex]

Answer:

10;30

Step-by-ste1p explanation:

Answer:

P=145.8m

Step-by-step explanation:

Answer: The perimeter is 145.8 square meters

Step-by-step explanation:

Area=513.5 square meters

513.5=l (length) times w (width)

513.5= 7.9 times w

513.5= 7.9w

(DIVIDE 513.5 AND 7.9 BY 7.9)

65= w

Perimeter= 2l + 2w

Perimeter=2(7.9) + 2(65)

Perimeter=15.8 + 130

Perimeter=145.8 square meters

Answer:

y = mx + b

Since it is perpendicular to the given line, its slope is the negative reciprocal of the slope of the given line.

Slope of given line:

m0 = -a/b = -(-3) / (1) = 3

Slope of perpendicular line:

m = -1/3

y = (-1/3)x + b

Use the given point to find b.

2 = (-1/3)(3) + b

2 = -1 + b

b = 3

y = (-1/3)x + 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Perpendicular lines have their slope negative reciprocal

y= -3x +3 has the slope -3

y = (1/3)x +b is the line that is ⊥ so it has the slope (1/3)

The line passes trough the point (x=-2, y=8) so substitute the x and y to find b

8 = (1/3)(-2) +b, multiply (1/3)(-2) = -2/3 and add 2/3 on both sides

8+(2/3) = b, find the common denominator and add the fractions

[(3*8)+2 ]/3 =b

(26/3)  = b

The equation of the line described is y= (1/3)x +(26/3)

Answer:

x = - [tex]\frac{15}{16}[/tex]

Step-by-step explanation:

2 + [tex]\frac{x}{5}[/tex] + x = [tex]\frac{7}{8}[/tex]

Multiply through by 40 ( the LCM of 5 and 8 ) to clear the fractions

80 + 8x + 40x = 35

48x + 80 = 35 ( subtract 80 from both sides )

48x = - 45 ( divide both sides by 48 )

x = - [tex]\frac{45}{48}[/tex] = - [tex]\frac{15}{16}[/tex]

Answer:

5:6

Step-by-step explanation:

There are many rules of it

[tex]\\ \sf\longmapsto a:b::c:d[/tex]

[tex]\\ \sf\longmapsto \dfrac{a}{b}=\dfrac{c}{d}[/tex]

[tex]\\ \sf\longmapsto ad=bc[/tex]

Answer:

660:220

Step-by-step explanation:

Answer:

13x2 is 26

Step-by-step explanation:

Answer: The answer is 13.

Step-by-step explanation: This is because if you set up the equation

2x = 26 then you divide by 2 on each side, this would leave you with x = 13 which is the answer.

Answer: 3(r-2)

Step-by-step explanation: found it online

Answer:

Step-by-step explanation:

I love you

Answer: 3.1

Step-by-step explanation:

Firstly, let's put 2/8 as a decimal. If we simplify 2/8, it would be 1/4. And what is the decimal of 1/4? 0.25

Now that we've got our decimals it would be easier to calculate.

12.4 * 0.25 = 3.1

Answer:

the answer: 30 people per class

Answer:

Jan (x) is 19 and Tritt (y) is 11.

Step-by-step explanation:

2(11)-3 = 22-3 = 19 years old.

Answer:

BIDMAS

Step-by-step explanation:

In order to solve equations correctly, we use BIDMAS ( Brackets, Indices, Division, Multiplication, Addition and Subtraction).

For example, if we have 5+2x7, we would multiply 2 by 7 first, then add 5 to the value.

Answer:

A is correct don't you know