A first number plus twice a second number is 1. Twice the first number plus the second totals 14. Find the numbers

Answers

Answer 1

Let's consider the first number to be [tex]f[/tex] and the second number to be [tex]s[/tex]. Based on the information in the problem, we can create the following equations:

[tex]f + 2s = 1[/tex]

[tex]2f + s = 14[/tex]


Now, we can solve the equations through systems of equations. One way of doing this is by multiplying one of the equations so that there is a term in both equations which can be removed by addition or subtraction. In our case, we can multiply the entire first equation by 2 to get:

[tex]2f + 4s = 2/tex]

[tex]2f + s = 14[/tex]


Now, subtract [tex]2f[/tex] from both equations to get:

[tex]3s = -12[/tex]

[tex]s = -4[/tex]


Now that we have found [tex]s[/tex], "plug" it back into an equation to find [tex]f[/tex]:

[tex]f + 2(-4) = 1[/tex]

[tex]f - 8 = 1[/tex]

[tex]f = 9[/tex]


Our answers are s = -4 and f = 9.

Answer 2

Hey there!!

Let's take the first number as ' x '

Let's take the second number as ' y '

First number + twice the second number is 1

x + 2y = 1 ------------ ( 1 )

Twice the second number + second number is 14.

2x + y = 14 ----------- ( 2 )

Now let's get them all together...

...................................................................................................................................................................

x + 2y = 1 --- ( 1 )

2x + y = 14 --- ( 2 )

Now, let's multiply the first equation with 2 ...

...................................................................................................................................................................

2x + 4y = 2 --- ( 1 )

2x + y = 14 --- ( 2 )

Now, let's subtract the second equation from the second...

...................................................................................................................................................................

2x + 4y = 2 --- ( 1 )

- ( 2x + y ) = - ( 14 )

...................................................................................................................................................................

2x + 4y = 2 --- ( 1 )

-2x - y = -14 --- ( 2 )

...................................................................................................................................................................

3y = -12

Divide by 3 on both sides...

y = -4

The second number is -4.

We have the first equation x + 2y = 1

We got the y value, now substitute the value of y to get the value of x

...................................................................................................................................................................

x + 2y = 1

x + 2 ( -4 ) = 1

x - 8 = 1

Add 8 on both sides

x = 9

Hence, the second number is 9.

...................................................................................................................................................................

Hope my answer helps!!



Related Questions

13_,644 130,000 this # was rounded to nearest ten thousand list the possible digits that could go in the thousands place to make this statement correct

Answers

We have two rules in case of rounding off digits,

Rule 1:

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40.

Rule 2:

If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.

We are given the number 13_,644 which rounds off to 130,000.

Now as we can see the number is rounded down, so we can apply rule number 2 here.

If we place the digit 0, 1, 2, 3 or 4 then the number will round off to 130,000.

Answer: The possible digits that can go in thousands place are 0, 1, 2, 3 or 4.

There was a beautiful Japanese garden. Within the garden, there is a pond. Since the beginning of summer, lilies have started to cover more and more of it with every passing day. In fact, the quantity of lilies doubles every day. By day 58, the entire pond will be covered. How many days will it take the lilies to cover half the pond?

Answers

Answer:

57 days

Step-by-step explanation:

Given that there was a beautiful Japanese garden.

Also given that within the garden, there is a pond.

Since the beginning of summer, lilies have started to cover more and more of it with every passing day.

In fact, the quantity of lilies doubles every day.

By day 58, the entire pond will be covered.

Since given that every day lilies double, we find that if on 58th day it was full, then exactly one day before it should be 1/2 of pond.  In that case only, on 58th day pond can become full.

Hence half pond is filled with lilies in 57 days.

Darcy and Leah are looking at some fabric selections in a store. All of the selections are marked the same price, and the amount, in yards, of each fabric is written as an improper fraction. Which amount is the greatest?
A. 43⁄5
B. 78⁄9
C. 33⁄4
D. 22⁄3

Answers

B)

A= 8.6

B=8.66666...

C=8.25

D=7.33333...

B is your answer because you want to find the lowest denominator and the highest numerator

the clock loses 12 minutes every hour. it shows the correct time right now which is 3. when will the clock show the correct time again

Answers

10:00 will show trhe corect tiem


What could you do to describe the following data, showing temperatures for the week? (Check all that apply.)

Mon - 65°
Tues - 67°
Wed - 66°
Thur - 70°
Fri - 72°
Sat - 68°
Sun - 69°


Construct a line graph.
Find the mean, median, mode, and range.
Construct a stem-and-leaf plot.
Survey people about the weather.

Answers

Hi!

Here is the leaf plot:

6 ║ 5, 6, 7, 8 , 9

7 ║0, 2

The some of three consecutive integers is 33 more than the least of the integers. Find the integers

Answers

Let the smallest number = x

The next higher number would be x +1

The 3rd number would be x +2


The sum of the 3 numbers: x + x+1 + x+2

33 more than the smallest number is written as x+33


Now you have:

x + x+1 + x+2 = x+33

Simplify the left side:

3x +3 = x +33

Subtract 3 from each side:

3x = x +30

Subtract 1x from each side:

2x = 30

Divide both sides by 2:

X = 30/2

x = 15


The three numbers are 15, 16 and 17

Someone please help me with this!!

Answers

PEMDAS tells us to use multiplication and division before addition and subtraction.

-5(8) ÷ 10 - 14 ÷ 7 - (-2)(3)

-40  ÷ 10 -     2    -   -6

     -4       -    2     + 6    two negatives make a positive so - - 6  = + 6

            -6              +6

                      0

Answer: 0


The cost to manufacture t shirts can be represented by the function c(x)=10.5x complete the following statement about the function
Part A: if a club needs 8 t-shirts then it will cost...
Part B: if c(12) then...
T shirts will cost...

Answers

For this case we have:

Cost of manufactures of T-shirts [tex]C(x)=10.5x[/tex]

where x represents the number of T-shirts

Part A:

Substituting [tex]x = 8[/tex] in the total cost equation you have to:

[tex]C (8) = (10.5) (8)\\\\C (8) = 84\\[/tex]

Thus, the cost of 8 shirts will be [tex]C (8) = 84\\[/tex]

Part B:

If [tex]x = 12[/tex] then

[tex]C (12) = (10.5) (12)\\\\C (12) = 126\\[/tex]

Thus, the cost of 12 shirts will be [tex]C (12) = 126\\[/tex]

Answer:

[tex]C (8) = 84\\\\C (12) = 126\\\\[/tex]


Final answer:

The cost function c(x) = 10.5x, when applied for 8 and 12 t-shirts, indicates that 8 t-shirts will cost $84 and 12 t-shirts will cost $126.

Explanation:

The function c(x) = 10.5x represents the cost to manufacture t-shirts, where x is the number of t-shirts.

Part A: If a club needs 8 t-shirts, we substitute x=8 into the function. Therefore, c(8) = 10.5*8 = 84. Thus, it will cost $84 to manufacture 8 t-shirts.

Part B: If c(12), we substitute x=12 into the function. Therefore, c(12) = 10.5*12 = 126. This means that 12 t-shirts will cost $126.

Learn more about Cost Function here:

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Does 7/14 and 3/6 form a proportion

Answers

Quick Answer: Yes

If you reduce both to their lowest terms each becomes 1/2

Divide the numerator and denominator by 7 for the first one

(7 ÷ 7)/(14 ÷ 7) = 1/2

And numerator and denominator by 3 for the second one

(3 ÷ 3)/ (6 ÷ 3) = 1/2

How many two-thirds are in four-thirds

Answers

2 two-thirds are in four-thirds because 4 divided by 2 is 2

Given the graph of a line y=−x. Write an equation of a line which is perpendicular and goes through the point (8,2).

Answers

Answer:

y = x - 6

Step-by-step explanation:

The slope of y = -x is -1, so the slope of any line perpendicular to y = -x is +1.  Thus,

y = mx + b becomes 2 = 1(8) + b, so that b = -6.

The desired equation is y = x - 6.

Check:  Does (8,2) lie on this line?  Is 2 = 8 - 6 true?  YES.


Answer:

Y=X-6

Step-by-step explanation:

JOOOHNNNNN CENNAAAAA

A play is performed for a crowd of 400 people. Adult tickets cost $22 each, student tickets cost $15 each, and tickets for children cost $13.50 each. The revenue for the concert is $7840. There are 40 more children at the concert than students. How many of each type of ticket are sold?

Answers

Answer:

280 adult tickets, 40 student tickets and 80 children tickets were sold.

Step-by-step explanation:

To solve this problem let's call:

x = number of tickets for adults

y = number of tickets for students

z = number of tickets for children

The income for the concert is $ 7840

Then we can raise the following equations according to the given conditions:

[tex]x+y+z = 400[/tex]   (i)

[tex]22x+15y +13.50z = 7840[/tex] (ii)

 There are 40 more children in the concert than students:

So:

[tex]z=40+y[/tex]  (iii)

We then have 3 equations and 3 unknowns:

To solve the system we multiply the equation (i) by -22 and add it to the equation (ii)

So:

[tex]-22x-22y-22z=-8800[/tex]

       +

[tex]22x+15y +13.5z =7840 [/tex]

[tex]-7y-8.5z = -960[/tex] (iv)

 Now we multiply (iii) by 7 and add it to (iv)

[tex]7y-7z = -280 [/tex]

   +

[tex]-7y-8.5z = -960[/tex]    

[tex]-15.5z = -1240 [/tex]

[tex]z = 80[/tex] (v)

We substitute (v) in (iv) and we have

[tex]y = 40[/tex] (vi)

We substitute (v) and (vi) into (i) and we have:

[tex]x =280[/tex]

280 adult tickets, 40 student tickets and 80 children tickets were sold.

Can anyone help me? I would really appreciate it. Thanks in advance.

Answers

∠AKJ ≅ AIH  because they are corresponding angles

  60° = AIH   by substitution

ΔAIH

∠A + ∠I + ∠H = 180°   per the triangle angle sum theorem

 x  + 60 + 56 = 180    substituted known values

 x +       116     = 180   added like terms

                    x = 64     subtracted 116 from both sides  

Answer: 64°  


Please Help if you can! There are 2 red gumdrops and 3 green gumdrops in a small jar. Also, 3 pieces of butterscotch candy and 2 pieces of cinnamon candy are in another jar. If Craig draws one piece of candy from each jar without looking, what's the probability that he will get a red gumdrop and a piece of butterscotch candy? The Answer choices are 6/25, 1/2, 4/25, or 1/5! Thank you!

Answers

I think it would be 6/25 because you have 2/5 chance and a 3/5 chance,
2 × 3 = 6
--- --- ---
5 × 5 = 25

I hope this helps ♡ chyna

The probability of drawing a red gumdrop is [tex]\( \frac{2}{5} \)[/tex] and butterscotch candy is [tex]\( \frac{3}{5} \)[/tex]. Combined, it's [tex]\( \frac{6}{25} \)[/tex]. Answer: A.

To find the probability that Craig will draw a red gumdrop and a piece of butterscotch candy, we need to find the probability of each event separately and then multiply them together because the events are independent.

1. Probability of drawing a red gumdrop:

[tex]\[ P(\text{red gumdrop}) = \frac{\text{number of red gumdrops}}{\text{total number of gumdrops}} \][/tex]

[tex]\[ P(\text{red gumdrop}) = \frac{2}{2 + 3} = \frac{2}{5} \][/tex]

2. Probability of drawing a piece of butterscotch candy:

[tex]\[ P(\text{butterscotch candy}) = \frac{\text{number of butterscotch candies}}{\text{total number of candies}} \][/tex]

[tex]\[ P(\text{butterscotch candy}) = \frac{3}{3 + 2} = \frac{3}{5} \][/tex]

Now, multiply the probabilities together:

[tex]\[ P(\text{red gumdrop and butterscotch candy}) = P(\text{red gumdrop}) \times P(\text{butterscotch candy}) \][/tex]

[tex]\[ P(\text{red gumdrop and butterscotch candy}) = \frac{2}{5} \times \frac{3}{5} \][/tex]

[tex]\[ P(\text{red gumdrop and butterscotch candy}) = \frac{6}{25} \][/tex]

So, the probability that Craig will get a red gumdrop and a piece of butterscotch candy is [tex]\(\frac{6}{25}\)[/tex], which corresponds to option A.

The correct question is:

Here are 2 red gumdrops and 3 green gumdrops in a small jar. Also, 3 pieces of butterscotch candy and 2 pieces of cinnamon candy are in another jar. If Craig draws one piece of candy from each jar without looking, what's the probability that he will get a red gumdrop and a piece of butterscotch candy? The Answer choices are

A. 6/25

B. 1/2

C. 4/25

D. 1/5

help algebra. one question.

Answers

Jenny's total earnings:

total earnings = (hours worked on design)*40 + (hours worked on maintenance)*35

average earnings = total earnings / hours worked

So far she has

total earnings = 18*40 + 20*35 = $1420

which is an average per hour = $1420/38hr = $37.37

How many more hours on webdesign: x

so that

($1420+x*$40)/(38+x)=38

Now solve for x - this I let you do. My results is x=12 (you can verify by plugging it iback into the equation).

The answer is Jenny needs to work 12 more hours to claim an average earnings of $38/hr. Lmk if you have questions.



Trevor plans on buying a car. Four banks offer the annual interest rates shown.

Which list shows these interest rates in order from greatest to least


3 1/10%, 3 2/5%, 3 1/4%, 3 1/3%

Answers

Solution

In order to find  greatest to least number, we have to convert the given fractions into decimals.

3 [tex]\frac{1}{10}[/tex] % = 3 + 1/10 = 3 + 0.10 = 3.10%

3 [tex]\frac{2}{5}[/tex]% = 3 + 2/5 = 3 + 0.40 = 3.40%

3 [tex]\frac{1}{4}[/tex] %= 3 + 0.25 = 3.25%

3 [tex]\frac{1}{3}[/tex]% = 3 + 0.33 = 3.33%

Now we can easily, compare the numbers and write from greatest to least.

3.40%, 3.33%, 3.25%, 3.10%

Greatest to least  = 3 2/5%, 3 1/3%3, 3 1/4%,  1/10%,

Thank you :)

Answer:

3 2/5%, 3 1/3%, 3 1/4%, 3 1/10%

Step-by-step explanation:

(10 points) State the relationship between segments MA and TH. Explain.

Answers

Find the totals of both Angle s A and T by adding the 2 angles in each corner:


Angle A = 58 + 32 = 90 degrees

Angle T =  46 + 44 = 90 degrees.


Becuase both these angles are 90 degrees Lines AM and TH are parallel.

A box o 25 light bulbo is shipped to a hardware store when it arrives four of the bulbs are broken predict the number of broken Light bulbs in an order of 125 bulds

Answers

Well if its 4/25 and you multiply both numbers by 5 you get 20/125

Raphael is twice as old as his sister is. The sum of their ages is less than 30. What is the greatest age Raphael’s sister can be?

The greatest age Raphael's sister can be is 9 years old.
The greatest age Raphael's sister can be is 11 years old.
The greatest age Raphael's sister can be is 20 years old.
The greatest age Raphael's sister can be is 10 years old.

Answers

Lets solve each one :

 If she is 9 :

9 times 2 = 18 + 9 = 27

If she is 11 :

11 times 2 = 22 + 11 = 33

If she is 20 :

20 times 2 = 40 + 20 = 60

If she is 10 :

10 times 2 = 20 + 10 = 30

You pick your answer :)

I hope this helped!

Have a great day!!!

The greatest age Raphael's sister can be is 10 years old.

What is an equation?

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =

Given that, Raphael is twice as old as his sister is. The sum of their ages is less than 30.

Let the age of Raphael's sister be x,

2x + x = 30

3x = 30

x = 10

Hence, The greatest age Raphael's sister can be is 10 years old.

For more references on equations, click;

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write an equation for each translation of y = x 6 units left

Answers

[tex]<b><i>HEY THERE!![/tex]

F(x)= x+6 that should be the answer.

HOPE IT HELPED YOU.

Hi the answer is:

y = IxI + 6


Which of the following is usually the first step in solving a system of nonlinear equations by substitution

Answers

Answer:it is isolating one of the variables...

Step-by-step explanation:

Apex

Answer:

isolating the variable

Step-by-step explanation:

Which diagram BEST represents the line of best fit for the scatterplot?

A)



B)



C)



D)

Answers

Answer:  C looks like the best fit.


Answer:

C

Step-by-step explanation:

A scatterplot best fit line looks as thought the distance of the points above the line are the same as the points below the line in this case. See the comment under d for more.

A

All the points are above the line

B

Only a very few points come close to the line. Left right is more at work here rather than up and down.

C Answer

D

The average of those above the line might be the same as below the line, but the symmetry is a left right symmetry; all the downs are on the left and all the ups are on the right.. They might average out to be 0 but it is not what is meant. The x and y values both have something to do with the answer. D is the second best answer.


Use the partial quotient to solve 673÷5

Answers

Our answer would be 134.6

Original cost of a shirt: $54 ; markup by 50%, then markdown by 25%

Answers

54 x .50 = $27

54 x .25 = 13.5


50% = $27.00

25% = $13.50

What type of number is 67

Answers

it is an odd number. it is also a prime number . ie only divisible by one and  itself.

It’s an odd number and it’s the 19th prime number

A real estate agent spends $1,500 on advertising for three months to sell an average house. If the house sells in three months, the agent earns $9,000. Otherwise, he loses the listing and earns nothing. If there is a 40% chance that the house will sell in three months, what is the expected revenue for the real estate agent?
$2,000
$2,100
$3,200
$3,600

Answers

Ok so if the agent spend 1,500$ on advertising then thats -1,500 for his wallet eg.

WALLET:

-1,500$

Now if the house sells in 3 months that's 9,000 in wallet but since there is only a 40% chance then we need to work out 40% of 9000 we can do that by doing 9000 x 0.40 which = 3,600 so 3,600 in wallet on average

-1,500

+3,600

now if we combine these we get 2,100 so the answer is on average 2,100

Answer:

B edge

Step-by-step explanation:

What are the angle measure of x and y

Answers

Assuming these two lines are parallel, x=106 as they are corresponding angles, and y=180-106, so y=74.

Y=74 hope this helps

the cost of 500000 worth of 30 year term life insurance for Edna is $121.04 per month if Edna's employer covers 80% of this cost how much is deducted from Edna's gross income per year for life insurance?

Answers

121.04×.80=96.83
96.83×12=1161.96
Ednas employer pays 1161.96
121.04-96.83=24.21
24.21×12=290.52
Edna pays $290.52 of her gross income

Answer:

$290.50

Step-by-step explanation:

121.04 * 80% = 96.832

121.04 - 96.832 = 24.208

24.208 * 12 = 290.496 ~ 290.50

Greta uses 6 ounces of pasta to make 6 /7 of a serving of pasta. How many ounces of pasta are there per serving?

Answers

Answer:

7

Step-by-step explanation:

We know that since 6 ounces creates 6/7 of a serving, that basically says that 1/7 of a serving is created with 1 ounce of pasta. So if there were 7 ounces of pasta, that would make 7/7 servings and that would be 1 serving

Zach has 3/4 hour play video games. It takes him 1/12 hour to set up the stystem. Each round of his favorite game takes 1/6 hour. How many rounds can he play.

Answers

He can play 4 rounds. If you find a common denominator, it would end up with 9/12 of an hour to play and then you subtract the 1/12 it took to set it up. this leaves you with 8/12. but, it takes 2/12 of an hour to play each round. so 8 divided by 2 is 4. Which is where the 4 rounds is from!

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