What it the ordered pair of 7x-2y=3

QUESTION POSTED AT 03/12/2019 - 12:35 PM

Answered by admin AT 03/12/2019 - 12:35 PM

In a system of equations with two variables, you generally need two equations to find a unique solution, and this system is no exception. One example of a solution to this problem is (1, 2), but (3, 9) and (5, 16) also work, and there are actually infinitely many solutions to this single equation.
Post your answer

Related questions

A store charges $68.95 for a pair of cowboy boots. The store can calculate total cowboy boot sales by using the equation t=68.95b, where t represents total cowboy boot sales and b represents the number of cowboy boots sold. What will the store's total cowboy boot sales be if they sell 31 pairs of cowboy boots?


Well to find the total sales you must substitute for the variable in the equation;

t = 68.95b

t = 68.95(31)

t = 2,137.45

So the total of the store's boot sales is;

$2,137.45

ANSWERED AT 14/12/2019 - 04:35 PM


QUESTION POSTED AT 14/12/2019 - 04:35 PM

Order each set of numbers from least to greatest. Set B: {-0.615, -5/8, -0.62, 1/8}

-0.625, -0.615, -0.62, 0.125 is your answer. just dived -5/8 and +1/8 and just put them in order.

ANSWERED AT 14/12/2019 - 04:32 PM


QUESTION POSTED AT 14/12/2019 - 04:32 PM

Majed bought a new pair of jeans. After the 15% sales tax the jeans were $11.50. How much was the jeans before the sales price?

Given Situation: Majed bought a new pair of jeans. After the 15% sales tax the price became 11.50 dollars. Let’s start solving to find the original price of the jeans Majed bought. => 15% = 15 / 100 = .15 => 10 dollars * .15 = 1.5 dollars. Now, let’s add this production to get the total amount that Majed paid. => 10 + 1.5 = 11.5 dollars => 10 is the original price of the jeans plus the 15% sales tax, total is 11.5 dollars

ANSWERED AT 14/12/2019 - 03:37 PM


QUESTION POSTED AT 14/12/2019 - 03:37 PM

Order 3/8,3/4,1/2,5/6 from least to greatest

To solve this, it is easiest to find the least common multiple of the denominators which is 24. Now we can rewrite our fractions.
 \frac{3}{8} = \frac{9}{24}
 \frac{3}{4} = \frac{18}{24}
 \frac{1}{2} = \frac{12}{24}
 \frac{5}{6} = \frac{20}{24}

Now these fractions can be put in order:
 \frac{9}{24} ,  \frac{12}{24}  \frac{18}{24} ,  \frac{20}{24}

Reduce and you have your answer.
 \frac{3}{8}  \frac{1}{2}  \frac{3}{4}  \frac{5}{6}

ANSWERED AT 14/12/2019 - 03:18 PM


QUESTION POSTED AT 14/12/2019 - 03:18 PM

A package of 6 pairs of socks cost $35.34 what is the unit price for the pairs of socks

To find the unit price we need to divide the amount of money the item cost by the amount of items we have. Lets do it:-

35.34 ÷ 6 = 5.89
1 pair of socks cost $5.89.

CHECK OUR WORK:-

5.89 
× 6 = 35.34.
We were RIGHT!!

So, 1 pair of socks costs $5.89.

Hope I helped ya!! 

ANSWERED AT 14/12/2019 - 02:54 PM


QUESTION POSTED AT 14/12/2019 - 02:54 PM

Circle the number sentences that show same addends in a different order 4 5=9 5 4=9 6 3=9.

4+5 and 5+4 because they use the same numbers but just reversed

ANSWERED AT 14/12/2019 - 02:32 PM


QUESTION POSTED AT 14/12/2019 - 02:32 PM

A function is shown in the table below. x f(x) –4 2 –1 –4 0 –2 3 16 If included in the table, which ordered pair, (-4,1) or (1,-4), would result in a relation that is no longer a function? Explain your answer.

The ordered pair that would result in a relation that is no longer a function is (-4, 1) and (1, 4) because I notice that the table of the function is equal to the function y = x² + 3x - 2, making the function have the ordered pair neither have the two ordered pairs in the function.

ANSWERED AT 14/12/2019 - 02:26 PM


QUESTION POSTED AT 14/12/2019 - 02:26 PM

Lana and Emily are playing a competitive word game. Whoever plays all of their tiles first gets to add the value of their word plus the total value of all of their opponent’s remaining tiles to their score. Also, the opponent must subtract the total value of all of their tiles from their score. Suppose that the current score is: Lana 324, Emily 358. If Lana’s last word is worth 7 points, how many points does she need Emily to have in her hand in order to win? Suppose that the current score is: Lana 324, Emily 358. If Lana’s last word is worth 7 points, how many points does she need Emily to have in her hand in order to win? ___________ points Hint: If Emily had 5 points in her hand, by how much would the difference between the player’s scores change?

Lana gets the 7 points so she ends up with 331. She will then be 358-331=27points behind Emily. She needs to win, so there needs to be 1 more than 27 points of change in the score, or 28 points. Emily's hand value is added to Lana's and also subtracted from Emily's so her hand is worth twice the value as the amount. (If the hand is worth 10 points, it changes the scores by 20 points). Thus, we only need half of the 28 points of change for Lana to win. The answer is 14 points.

ANSWERED AT 14/12/2019 - 02:11 PM


QUESTION POSTED AT 14/12/2019 - 02:11 PM

The Foil method is used for__ a determining the order of operations in a standard algebra problem b factoring quadratic equations c simplifying factor sets that contain variables d solving inequalities

Factoring Quadratic Equations.
U use the FOIL method to factor trinomials into binomial that would then allow you to find the solutions to the problem

ANSWERED AT 14/12/2019 - 01:22 PM


QUESTION POSTED AT 14/12/2019 - 01:22 PM

Multiply both sides of the each equation in order to get the coefficient to be an integer. 45=1/2a-3

45 = 1/2a - 3
45 + 3 = 1/2a
48 = 1/2a
48 x 2 = a
96 = a
a = 96

ANSWERED AT 14/12/2019 - 01:13 PM


QUESTION POSTED AT 14/12/2019 - 01:13 PM

A company paid $48 for 2 cases of printer paper. Each case contained 12 packages of paper. Next month the company's office manager needs to order 180 packages of the same paper. If the price per package does not change, what would be the total cost of next month's order?

Answer: $360


Step-by-step explanation:

Given : The cost of 2 cases of printer paper = $ 48

∴ The cost of 1 case of printer paper = \frac{48}{2}=\$24

If each case contained 12 packages of paper.

Then, then cost of 12 packages of printer paper= $24

∴  cost of 1 package of printer paper= \frac{24}{12}=\$2

Thus, the cost of 180 packages of printer paper=2\times180=\$360

Hence, the cost of 180 packages of  printer paper= $360

ANSWERED AT 14/12/2019 - 01:08 PM


QUESTION POSTED AT 14/12/2019 - 01:08 PM

Which pair of numbers is relatively prime? A. 26 and 99 B. 90 and 117 C. 100 and 202 D. 201 and 444

A. 26 and 99 is the correct answer.

26= 2*13
99= 3^(2)*11
GCF (26,99)= 1
Because GCF (26,99)= 1, 26 and 99 are relatively prime.

Hope this would help~

ANSWERED AT 14/12/2019 - 12:44 PM


QUESTION POSTED AT 14/12/2019 - 12:44 PM

While attending a major league baseball game, you think you can guess the attendence within 10% of the actual value. If the announced attendence is 44,000, within what number of people would your guess have to be in order to support your claim?

44,000 people is 100% of the attendance value, so you would need to guess within a 90-110% range of the actual value (90% is 10 less than 100% and 110% is 10 more than 100%). To get the number of people in the range, you need to multiply. 44,000×0.9=39,600 people. 44,000×1.1=48,400. So the range your guess would have to be in is 39,600-48,400 people.

ANSWERED AT 14/12/2019 - 12:30 PM


QUESTION POSTED AT 14/12/2019 - 12:30 PM

Arrange the polynomial so that the powers of x are in descending order. 8x - 9x^2y + 7y^2 - 2x^4

8x - 9x²y + 7y² - 2x⁴
-2x⁴ - 9x²y + 8x + 7y²

ANSWERED AT 14/12/2019 - 12:15 PM


QUESTION POSTED AT 14/12/2019 - 12:15 PM

Arrange the polynomial so that the powers of x are in ascending order. 4 + 3ax^5 + 2ax^2 - 5xa^7

4 + 3ax⁵ + 2ax² - 5a⁷x
4 - 5a⁷x + 2ax² + 3ax⁵ 

ANSWERED AT 14/12/2019 - 12:14 PM


QUESTION POSTED AT 14/12/2019 - 12:14 PM

The sales tax in New York is 8.25%. About how much will a $65.95 pair of shoes cost, including sales tax?

Answer=$71.39

8.25%=0.0825

100%+8.25%=1.0825

$65.95*1.0825=$71.39

ANSWERED AT 14/12/2019 - 12:10 PM


QUESTION POSTED AT 14/12/2019 - 12:10 PM

Orlando and daisy ordered a pizza for lunch. orlando ate 1/2 of the pizza, and daisy ate 3/8 of the pizza. how much of the pizza did they eat together

Answer=7/8

1/2+3/8=

to solve this problem, we need the denominators of the fractions to match. lets convert 1/2 to ?/8

1/2=4/8

4/8+3/8=7/8

They ate 7/8 of the pizza together 

ANSWERED AT 14/12/2019 - 11:40 AM


QUESTION POSTED AT 14/12/2019 - 11:40 AM

Which is the pair of congruent right angles?

Answer with explanation:

In Δ AB C and Δ A E D

1.≡∠AB C= ∠ A E D→→→[Each being 90°]

2.≡ B C= E D →→[Given]

3. ≡ ∠A CB = ∠ A DE →[Given]

⇒Δ AB C ≅ Δ A E D [By S AS]

∠ A B C and ∠ A E D, are congruent right angles.

In the Diagram given

∠AB C= ∠ A E D=90°

ANSWERED AT 14/12/2019 - 11:36 AM


QUESTION POSTED AT 14/12/2019 - 11:36 AM

Technology Tim has 39 pairs of headphones and 13 radios. Tim wants to sell all of the headphones and radios in identical packages. What is the greatest number of packages Tim can make?

You have to find the G.C.F of 13 and 39.
The G.C.F of 13 and 39 is 13 because that is the greatest number that can be divided in 13 and 39.

ANSWERED AT 14/12/2019 - 11:25 AM


QUESTION POSTED AT 14/12/2019 - 11:25 AM

A store buys shoes from the manufacturer at $50 per pair. The markup for the shoes is 12 percent. Suppose you want to buy these shoes. How much will you pay for them?

56$. What you do is: 50X1.12 because 12% is 0.12 and since they mark it up you are really paying 100%+12% (112%=1.12).

ANSWERED AT 14/12/2019 - 09:54 AM


QUESTION POSTED AT 14/12/2019 - 09:54 AM

Find the slope of the line that passes through the pair of points>> (-5/3, -1) & (-2, -9/2)A: 2/33B: -2/33C: -33/2D: 33/2

Slope= \frac{y_2-y_1}{x_2-x_1} = \frac{-\frac{9}{2} - (-1)}{-2- (-\frac{5}{3})}=\frac{ - \frac{9}{2} +  1}{-2 +   \frac{5}{3}} \\=  \frac{ - \frac{7}{2}}{ - \frac{1}{3}} \\= \frac{ - \frac{7}{2}\cdot6}{ - \frac{1}{3}\cdot6} \\=\frac{-21}{ -2}  \\  =\boxed{\bf{ \frac{21}{2}}}

So... none of your answers are correct. The correct answer is 21/2.

ANSWERED AT 14/12/2019 - 08:29 AM


QUESTION POSTED AT 14/12/2019 - 08:29 AM

Henry was buying clothing for the fall at Good Stuff. He spent $59 on a pair of jeans, $45.87 on a shirt, and $131.39 on a pair of shoes. How much did he spend? $236.26 $114.87 $190.39 $144.52 The rain totals for one week in Indiana in November were: 2 in., 0.58 in., 0 in., 0.2 in., 0 in., 0.9 in., and 2.15 in. How much rain fell during the week? 3.68 4.63 4.67 5.83 Your checking account has a beginning balance of $68.02. You deposited $169.23 into the account. The next week you spent $31.57 for gas and $25 to go out with friends. How much do you have left in the account? $180.68 $205.68 $237.25 $212.25

Answer:

The total cost  Henry spends are $236.36 .

The total rain fall during the week is 5.83 in .

The amount left in the account is $180.68 .

Step-by-step explanation:

First part

As given

Henry was buying clothing for the fall at Good Stuff.

He spent $59 on a pair of jeans, $45.87 on a shirt, and $131.39 on a pair of shoes.

Total henry spends = Cost of the pair of jeans + Cost of the shirt + Cost of pair of shoes

Put all the values in the above

Total henry spends = $59 + $45.87 + $131.39

                                = $236.36

Therefore the total cost  Henry spends are $236.36 .

Second part

As given

The rain totals for one week in Indiana in November were: 2 in., 0.58 in., 0 in., 0.2 in., 0 in., 0.9 in., and 2.15 in.

Total rain fall during the week = 2 + 0 + 0.58 + 0.2 + 0 + 0.9 + 2.15

                                                  = 5.83 in

Therefore the total rain fall during the week is 5.83 in .

Third part

Your checking account has a beginning balance of $68.02.

You deposited $169.23 into the account.

The next week you spent $31.57 for gas and $25 to go out with friends.

Amount left in the account =  Beginning balance + Deposited amount  - Amount spent on gas - Amount spends on  go out with friends.

Put all the values in the above

Amount left in the account = 68.02 + 169.23  - 31.57 - 25

                                            = 237.25 - 56.57

                                            = $ 180.68

Therefore the amount left in the account is $180.68 .

ANSWERED AT 14/12/2019 - 08:24 AM


QUESTION POSTED AT 14/12/2019 - 08:24 AM

Which pair of numbers is relatively prime? a. 72 And 115 b. 120 And 835 c. 201 And 735 d. 303 And 1041

Relatively prime means having no factors in common.

I will start by checking if they have the factor "3" in common: it's easy to check: the sum of its digit needs to be divisible by 3:

a. 72 And 115

7+2=9
1+1+5=7

not true that both are divisible by 3
b. 120 And 835
1+2=3
8+3+5=16


not true that both are divisible by 3
but, they're both divisible by 5! (0 or 5 at the end)
not relatively prime


 c. 201 And 735

2+1=3
7+3+5=15

both are divisible by 3!


d. 303 And 1041

3+3=6
1+4+1=6

both divisible by 3

the answer is a)


ANSWERED AT 14/12/2019 - 08:06 AM


QUESTION POSTED AT 14/12/2019 - 08:06 AM

In order for a button to fit through its buttonhole, the hole needs to be the size of the button's diameter. What size buttonhole is needed for a button with a circumference of 9.42 centimeters?

Π = pi = 3.1415926 etc.
Circumference = diameter × π
We can rearrange this to show:
Diameter = circumference ÷ π

Diameter = 9.42 ÷ π
Diameter = 2.998 cm

The buttonhole should be around 3 cm.

ANSWERED AT 14/12/2019 - 07:48 AM


QUESTION POSTED AT 14/12/2019 - 07:48 AM

Mandana is ordering new tile for her kitchen floor. The area of the floor is 117.7 square feet, and she wants to order between 15% and 20% extra of the materials. Which of the following is a reasonable amount of tile for Mandana to order?

To find a percentage increase of 15%, you can multiply the original value by 1.15.
To find a percentage increase of 20%, you can multiply the original value by 1.2.

117.7 * 1.15 = 135.355
So if she orders 15% extra tile, she will order around about 135.355 square feet.

117.2 * 1.2 = 141.24
And if she orders 20% extra tile, she will order around about 141.24 square feet.

Any number between those two values will be the amount of tile she might order.

ANSWERED AT 14/12/2019 - 07:47 AM


QUESTION POSTED AT 14/12/2019 - 07:47 AM

Suppose you have 20 coins that total $4.00. Some coins are nickels and some are quarters. Which of the following pairs of equations would you use to find out how many of each coin you have? A. n+q=45n+25q=20 B. n+q=20n+q=4.00 C. n+q=4.00200.5n+0.25q=4.00 D. n+q=205n+25q=400

To find this...we need to see how much the total AMOUNT is. 
N is for  nickels and Q is for Quarters.

n+q=20 would be our first equation. 

We could see which choices have this as the first equation and cross the rest of the others out.

B and D have this...so we are left with those two choices.

n+q=20

Since we do not know how many nickels and quarters there are, we already know how much each is worth. 

Since we have that info, we can write a second equation.

 5n+25q=4.00

Now their is only one  answer that states this. 

Our final answer is that (D) n+q=20  5n+25q=400 is our answer.

ANSWERED AT 14/12/2019 - 07:35 AM


QUESTION POSTED AT 14/12/2019 - 07:35 AM

Laura ordered a set of blue and black pencils. She received 120 pencils, and 59% of them were black. About how many black pencils did Laura receive? A. 72, B. 48, C. 192, D. 120

Without doing the math, you can tell the answer is A.
50% of 120 pencils is 60 pencils. From there you just use process of elimination. It can't be B because there are over 50% black pencils. There aren't enough pencils in total for the answer to be C and not all penciled are black, so it can't possibly be D. That leaves us with A which is quite close to 50%.

Another method would be multiplying 120 by 60% (round 59%), which equals 72 pencils (A)

ANSWERED AT 14/12/2019 - 07:31 AM


QUESTION POSTED AT 14/12/2019 - 07:31 AM

What are the factor pairs of 32

This is the correct answer 1,4,8,16 and 32

ANSWERED AT 14/12/2019 - 07:09 AM


QUESTION POSTED AT 14/12/2019 - 07:09 AM