There are two mystery numbers. The sum of 2 times the first number and 5 times the second number is -5. The sum of 3 times the first number and 10 times the second number is -5. What are the two numbers?

Answers

Answer 1

Answer:

the two numbers are -5 and 1

Step-by-step explanation:

Let x and y be the first number and second number respectively.

According to the question, we can find 2 equations:

2x + 5y = -5

3x + 10y = -5

On solving,

x = -5

y = 1

Answer 2

Answer:

X=-5,Y=1

Step-by-step explanation:

First equation: 2X+5Y=-5

Second equation:3X+10Y=-5

If we subtract the first from the second equation

(3X+10Y)-(2X+5Y)= 0 so, X+5Y= 0

So X= -5Y .then substitute in the second equation

So ,3(-5Y)+10Y= -5 , therefore -15Y + 10Y=-5 so, -5Y=-5 which means that Y=1

Then substitute with that in the first equation so 2X+5= -5

2X= -10 therefore X=-5


Related Questions

pls help me :) plssss

Answers

Answer:

8

Step-by-step explanation:

Answer:

he has 8 bags of gummy bears

Step-by-step explanation:

if you look at the graph the solution is at (4,8)

where four equals the amount of bags of chocolate he has and eight equals the amount of gummy bears he has

Unit 4.2 math 8th grade

Answers

Answer: ok but what is your question lol

Step-by-step explanation:

Answer:

So?

Step-by-step explanation:

At a garage sale, the most expensive item was marked $24.00 more than the cheapest item. The sum of the two items was $27.50. Find the cost of the least expensive item.

Answers

Answer:

$3.50

Step-by-step explanation:

27,50-24.00=3.50

Jeanne needs to buy shirts to look good when she
goes back to school in a couple weeks. She has $55
dollars to spend and all the shirts are conveniently the
same price at her favorite store. She purchased 5
shirts, s and left the store with $7.50. Write an equation
that represents this situation.

Answers

5x+7.50=55

x is 9.5

Each model represents one whole. In which model does the shaded section represent the product of 5/8 and 3/8? Please show me the steps on how you got your answer! (Nevermind! I found out the answer)

Answers

Answer:

Step-by-step explanation:


Which of the following occurrences would have a more than likely chance
of occurring? Choose ALL correct answers. Please help

Answers

I think the answers are A,B,D your welcome hope this helps

20 points, please help
If n -2 = 1/16, then n could be which of the following?


-1/4
4
-4
-8
1/4

Answers

Answer:

the answer would be 33/16

Are my answers for the conditional statement correct? I would just like to check them and if they're incorrect, could you let me know how to fix them? Thank you.


Statement: If I brush my teeth twice a day, then I will not get cavities.


Inverse: If I don't brush my teeth twice a day, then I will get cavities.
Truth Value: True

Converse: If I don't get cavities, then I am brushing my teeth twice a day.
Truth Value: True


Contrapositive: If I get cavities, then I am not brushing my teeth twice a day.
Truth Value: True

Answers

Statement: If p, then q

Inverse: If q, then p

Converse: If not p, then not q

Contrapositive: If not q, then not p.

We can see from the statement that p = brush teeth twice a day and q = not get cavities.

Thus:

Inverse: If I don't get cavities, then I brush my teeth twice a day. FALSE (for example, I might floss extra well instead. Brushing my teeth twice a day is not the only way to avoid cavities)

Converse: If I don't brush my teeth twice a day, then I get cavities. FALSE (for example, I might not eat a lot of sugar and thus I don't get cavities)

Contrapositive: If I get cavities, then I did not brush my teeth twice a day. TRUE

If this confuses you, try the example of p = cat and q = four legs. (i.e. the statement is If this is a cat, it has four legs). Try making the inverse, converse, and contrapositive, and see the truth of those statements.

An online furniture store sells chairs for $200 each and tables for $450 each. Every day, the store can ship a maximum of 26 pieces of furniture and must sell at least $6000 worth of chairs and tables. If xx represents the number of tables sold and yy represents the number of chairs sold, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

its 10

Step-by-step explanation:

Solution is x≈3.2  & y≈22.8

What is inequality?

An inequality is a relation which makes a non-equal comparison between two numbers or mathematical expressions.

here, we have,

An online furniture store sells chairs for $200 each and tables for $450 each.

Every day, the store can ship a maximum of 26 pieces of furniture and must sell at least $6000 worth of chairs and tables.

Let, x represents the number of tables sold and y represents the number of chairs sold.

Then, the inequalities are,

we get,

$200y + $450x ≥ 6000

and, x+y≤26

Solving we get,

x≈3.2

y≈22.8

Hence, we get, Solution is x≈3.2  & y≈22.8

To learn more on inequality click:

brainly.com/question/24853349

#SPJ2

Consider the equation n2+5=21.

Select from the drop-down menus to correctly complete the statement.

response - correct
The first step in solving the equation is to isolate the power.

After that, take the square root of each side.

Correct
Before you can use the square root property, one side of the equation must be a perfect square.
Question 2
Solve the equation.

Enter your answers in the boxes.

The solutions are
and
.

Answers

Step-by-step explanation:

n2+5=21

n2 =21-5

n2 = 16

n =16/2=8

simplify each expression.

Answers

Answer:

1. a²⁴

2. b¹⁵ / c²⁰

3. 8x³ / 27y⁶

4. 16m¹⁰n²²

Step-by-step explanation:

Hope This Helps :)

Plz Mark Brainliest!!

Which graph best show a train pulling into a station to drop off its passengers?

Answers

Answer:

The answer is B

Because the train will stop and speed decreases with increasing time

Answer: B

Explanation:

i cant see the last graph but im pretty sure its B because you are slowing down in order for the train to come to a stop

One-hundred and forty students are randomly polled at your school about what their favorite lunch food is. The results are organized in the Venn diagram below.







How many students stated that they like hotdogs?

37
28
39
23

Answers

Answer:

39

Step-by-step explanation:

39 because 23 of the students already like hot dogs an 14 like hot dogs and cheeseburgers and 2 like pizza and hot dogs so add them together and you get 39

Answer:

Step-by-step explanation:

39

2: Cis directly proportional to D.
When C = 125, D = 5
(a) Find an equation for C in terms of D.
(b) Find the value of C when D = 10
(c) Find the value of D when C = 75

Answers

Answer:

a. C = 5 × 25

b. C = 150

c. D = 3

The number of vertices in a prism is twice the number of vertices of one of the bases. How many vertices does one of the bases of a regular prism with 14 faces and 36 edges have?

Answers

Answer:

24

Step-by-step explanation:

The computation of the number of vertices does one of the base of regular prism is shown below:

V + F = E + 2

V + 14 = 36 + 2

V + 14 = 38

V  = 38 - 14

= 24

HEEELP PLEASE Put the following equation of a line into slope-intercept form, simplifying all fractions.

Answers

Answer:

slope intercept form: y = x - 3

Step-by-step explanation:

Determine which of the ordered pairs are solutions to the systems
of linear inequalities given below.

Answers

Answer:

1,3,4

Step-by-step explanation:

A 35-foot ladder is leaning against the side of a building and is positioned such that the base of the ladder is 21 feet from the base of the building. How far above the ground is the point where the ladder touches the building?

Answers

Answer:

height = 28 feet

Step-by-step explanation:

using the Pythagorean theorem:

height = 35² - 21²

height² = 1225 - 441 = 784

height = 28 feet

What is the probability that a data value in a normal distribution is between a
z-score of -1.98 and a z-score of 1.11? Round your answer to the nearest
tenth of a percent.
A. 65.0%
B. 55.3%
C. 46.2%
D. 84.3%

Answers

Answer:

answer b.....plz follow me

B is the answer!!!!!!

Payton has $20 to spend at the carnival Payton purchased 30 game tickets,2 slices of pizza, and one ice cream what number is equivalent to 20-0.45x20-1.75x2-2

Answers

Answer:

5.5

Step-by-step explanation:

The given operation is :

20 - 0.45 x 20 - 1.75 x 2 - 2

In the above algorithm contains more than one operations to be executed. Here we use the BODMAS rule that states that we first calculate the brackets then the orders, following multiplication or division and then at last addition or subtraction. Therefore,

20 - ( 0.45 x 20 ) - ( 1.75 x 2 ) - 2

= 20 - 9 - 3.5 - 2  

= 11 - 3.5 - 2

= 7.5 - 2

= 5.5

i need help pls and thank you

Answers

the fourth table is the correct answer

These numbers from least to greatest




2.3081
2.3
3.228
2.38

Answers

Answer:

2.3081

2.3

2.38

3.228

Answer:

least to greatest

1. 2.3

2. 2.3081

3. 2.38

4. 3.228

Are the ratios 2:1 and 10:5 equivalent? yes or no

Answers

Answer:

Yes

Step-by-step explanation:

10/5 = 2 and 5/5 = 1

Answer:

Yes

Step-by-step explanation:

To find out if the ratios are equivalent you need to simplify both of them. The ratio 2:1 is already simplified all the way. You know this because 2 and 1 have no GCF (greatest common factor) besides 1. However, 10:5 is not all the way simplified. The GCF is 5, so divide both sides by 5. This equals 2:1. The ratio 2:1 is equal to 2:1; therefore, they must be equivalent.

Here are the first four terms of a quadratic sequence, the nth term of this quadratic
sequence is an² + bn + c.
2, 12, 28, 50
Find the values of a, b and c.
(4 marks)​

Answers

Answer:

a = 3, b = 1, c = - 2

Step-by-step explanation:

Substitute n = 1, 2, 3, 4 into the nth term and equate to the values , that is

a + b + c = 2 → (1)

4a + 2b + c = 12 → (2)

9a + 3b + c = 28 → (3)

16a + 4b + c = 50 → (4)

Subtract (1) from (2) to eliminate c

3a + b = 10 → (5)

Subtract (3) from (4) to eliminate c

7a + b = 22 → (6)

Subtract (5) from (6) to eliminate b

4a = 12 ( divide both sides by 4 )

a = 3

Substitute a = 3 into 5) and solve for b

3(3) + b = 10

9 + b = 10 ( subtract 9 from both sides )

b = 1

Substitute a = 3 and b = 1 into (1) and solve for c

3 + 1 + c = 2

4 + c = 2 ( subtract 4 from both sides )

c = - 2

Then

a = 3, b = 1, c = - 2

and y = 3n² + n - 2 ← explicit formula

Erm the answer is a= 3 b=f and c=-2

What is the common denominator for 1/3 and 4/5?

Answers

Answer:

15

Step-by-step explanation:

You can find this by multiplying the two deniminator numbers. 3*5

Although this dosent always find the lowest deniminator when you are dealing with high numbers, but it will get you an deniminator.

Troy has $35 to pay for a movie ticket and then buy comic books. Each comic books costs $3, the
movie ticket costs $10. Which equation can be used to determine how many comic books, b, Troy can buy?

A.10b + 3 = 35
B.3b + 35 = 10
C.3b + 10 = 35
D.10b + 35

Answers

Answer:

the answer is 3

Step-by-step explanation:

b will be used to determine how many books he bought since he is only buying one movie ticket the equation would be 3b + 10 = 35

Can someone help me

Answers

Answer:

33

Step-by-step explanation:

To find the range all you have to do is subtract the lowest number from the highest.

98 - 65 = 33

The range is the largest number minus the smallest, so 98-65=33

Plz help it is 10 points

Answers

Oh please first if the rectangle was compete, it's area would be 8.

The area of the missing triangle is [tex]\frac{2*2}{2}[/tex]=2.

8-2=6

And there you go! Your answer is 6.

What is the measure of ∠J?


127°


92°


39°


141°

Answers

Answer:

39°

Step-by-step explanation:

A triangle always equals 180° so you have to subtract the other two angles from 180 to find the measure of J

180°-88°-53°= 39°

WILL GIVE BRAINLIEST!! NEED THIS ASAP!! DUE NOW!!

List and explain 3 major differences between the Democratic party and the Republican party.

Answers

1. Fiscal differences

Democrats are usually pro-regulation, and Republicans are for a free market. However, both are pro-capitalism. Examples: 15 dollar minimum wage, Green New Deal

2. Social differences

Democrats tend to be more progressive in social view, meanwhile Republicans tend to want to stick to the traditions. This means LGBT, abortion BLM, etc.  

3. Climate change

Most Democrats recognize that climate change is a problem (they wont do anything about it, but at least they recognize it I guess.) Most Republicans think that climate change is normal and there is nothing to do about it.

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