the sum of two number is 50,and their difference is 30.find the numbers​

Answers

Answer 1

Answer:

40 and 10

Step-by-step explanation:

if you add them you get 50 and if you subtract them you get 30

Answer 2

Answer:

40 and 10

Step-by-step explanation:

Let the bigger number = x

Let the smaller number = y

x+y=50

x-y=30

(add the equations)

(x+x)+(y-y)=(50+30)

2x=80

x=40

x+y=50

40+y=50

y=10


Related Questions

HELP ME PLS I NEED HELP ALSO I NEED A SHOW YOUR WORK BUT PLS HELP

Answers

Step-by-step explanation:

6 y = mx + b

7. m

8. b

9a m = 4 (slope), b = 12(yintercept)

9b -1. 4

9c 8. 21

9d 12. 9

Mrs Tay baked 45 cookies.
She gave of them to her friends.
How many cookies did she give her friends?
45​

Answers

Answer:

15cookies

Step-by-step explanation:

Complete question:

Mrs Tay baked 45 cookies. She gave 1/3 of them to her friends. How many cookies did she give her friends?

Given the following

Total cookies = 45 cookies

Fraction of cookies given = 1/3

Amount she gave her friends= 1/3 * 45

Amount she gave her friends= 45/3

Amount she gave her friends= 15cookies

Hence she gave 15cookies to her friends

Sam has $560 in his savings account.
He earns 2.5% interest every 3 years.
How much TOTAL savings will he have in his account?

Answers

$234///////////////////

7a+5a^2+6a^0-3a^2-4a

Answers

3a +2a^2+6
Notes that a^0=1

I will mark you brainlist!

The circle graph shows how Tremaine divided his time on the computer last week.

Tremaine used the computer a total of 30 hours last week. How many more hours did Tremaine use the computer to play video games than to do research?

Group of answer choices
6 hours

20 hours

7.5 hours

1.5 hours
Please explain the answer to me

Answers

Answer:  6

Step-by-step explanation:

So he spends 25% of his 30 hours on games so 30x0.25=7.5 since 25% is equal to 0.25. He also spends 5% of the 30 hours on research. 30x0.05=1.5. 7.5-1.5=6

A) 113
B) 92
C) 133
D) 117

Answers

D) 117
Because the 117 is opposite the variable

Please help very urgent

Answers

Answer:

32, 16, 8, 4, 2, 1

Explanation:

The geometric mean can be represented by [tex] \sqrt[n]{x_{1} • x_{2} • x_{3} • .. x_{n}} [/tex].

Which is the mean of the product of n numbers, used to find the average of a geometric progression.

Don't get confused by geometric mean, it is only asking you about the next numbers in the geometric sequence given the first and sixth term.

The explicit rule for a geometric sequence can be modeled by:

[tex] a_{n} = a_{1} • r^{n-1} [/tex]

Where [tex] a_{n} [/tex] is the nth term, [tex] a_{1} [/tex] is the first term in the sequence, n is the term number, and r is the common ratio.

Since we already know the first term, [tex] a_{1} [/tex] will simply be 32.

Since we know it's geometric, there will be an exponential relationship, which means that we will use the geometric mean to find the common ratio.

There are 6 total terms, r is raised to the n – 1 so 6 – 1 = 5, and that will be the degree of this root.

[tex] \sqrt[5]{\frac{a_{6}}{a_{1}}} [/tex] =

[tex] \sqrt[5]{\frac{1}{32}} [/tex] =

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

Therefore: [tex] r = \frac{1}{2} [/tex].

Using all the information we have, we can find the explicit rule:

[tex] a_{n} = a_{1} • r^{n-1} [/tex]

[tex] a_{1} [/tex] = 32[tex] r = \frac{1}{2} [/tex]

[tex] a_{n} = a_{1} • r^{n-1} [/tex] →

[tex] \boxed{a_{n} = 32 • (\frac{1}{2})^{n-1}}[/tex]

________________________________

We can test that this works by substituting the number location of the term you want to find.

For instance:

[tex] a_{1} = 32 • (\frac{1}{2})^{1-1} [/tex]

[tex] a_{1} = 32 • (\frac{1}{2})^{0} [/tex]

[tex] a_{1} = 32 • 1[/tex]

[tex] a_{1} = 32 [/tex]

[tex] a_{6} = 32 • (\frac{1}{2})^{6-1} [/tex]

[tex] a_{6} = 32 • (\frac{1}{2})^{5} [/tex]

[tex] a_{6} = 32 • \frac{1}{32} [/tex]

[tex] a_{6} = 1 [/tex]

Is the point (-4, 1/2) on the graph of y= 1\2 x-4 ? How do you know? Show your work/thinking.

Answers

9514 1404 393

Answer:

  no, when x is even, y will be an integer, not a fraction

Step-by-step explanation:

We observe that the coefficient of x is 1/2, so the x-term will be an integer only if x is a multiple of 2 (even). If the x-term is an integer, y will be an integer.

The given point has x even (-4), so we expect y to be an integer. The given point has y=1/2, not an integer, so the point will NOT be on the graph.

Please help anybody due in LESS THAN 1 MIN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

distance was 35 units and the average speed was 5 units per minute

Step-by-step explanation:

-47--12=-35

the absolute value of -35 is 35

35 units took 7 minutes

so 1 unit takes 35/7 minutes= 5 minutes

What is the volume of this prism?

Answers

Answer:

The answer is 42ft ^3 (42 ft units cubed)

Step-by-step explanation:

To find the volume for a rectangular prism, first of all you need to know the formula. The formula is V=lwh (volume= length x width x height)

The formmula for this problem is V= 7ft x 2ft x 3ft= 42ft

Which of the following points( X,Y) lies on the graph of 8X + 2Y = 24

Answers

Step-by-step explanation:

don't see any points to pick from however the following would lie on the graph

(0,12)

(1,8)

(2,4)

(3,0)

(4,-4)

Find the x- and y-intercepts of the graph of x + 3y = 33. State your answers as
whole numbers or as improper fractions in simplest form.

Answers

Answer:

x intercept is (33,0)

y intercept is (0, 11)

Step-by-step explanation:

x-intercepts are found when y=0

x + 3(0)=33,,, x=33

y-intercepts are found when x=0

0 + 3y= 33,,, y=11

5 = w + 1.5

whats the answer

Answers

Answer:

w = 3.5

Step-by-step explanation:

5 = w + 1.5

5- 1.5 = 3.5

quick mathz

Two numbers total 51 and have a difference of 23. Find the two numbers?

Answers

Answer:

14 and 37

I just kept checking all the pairs I could think of until I got to this answer.

Answers please and explain

Answers

To get the answer you have to fill in the 14 for r because that is the radius. Then multiply 14 by it self to get 196 then multiply that by pie to get your answer of 615.75216.

So the answer is 615.75216

Last year, Lien earned $1,600 more than her husband. Together they earned $51,000. How much did each of them earn?

Answers

Answer:

Lien: $26300 Her husband: $24700

Step-by-step explanation:

x+(x+1600)=51000

2x+1600=51000

2x=49400

x=24700

Her husband earned 24700

24700+1600=26300

Lien earned 26300

GIVING OUT BRAINLIEST TO WHOEVER CAN PROVIDE THE CORRECT ANSWER !! Asap

Answers

it is d, because if you use the rule sine is soa, so it is just the opposite and adjacent angles

According to a candy company, packages of a certain candy contain 21% orange candies.
Find the approximate probability that the random sample of 500 candies will contain 22% or more orange candies.
Using a normal approximation, what is the probability that at least 22% of 500 randomly sampled candies will be orange?

Answers

Answer:

vvvvvvvvvvvvvvvvvvvvvvv v v v v

A penny is dropped from the observation deck at the top of The Willis Tower in Chicago, IL. The height of the penny at any time is given by the equation H = 1450 – 16t2, where H is the height of the penny in feet and t is the time measured in seconds. How long will it take for the penny to hit the ground? Round your answer to the hundredths place.

Answers

Answer:B

Step-by-step explanation:because you need to add

If $18 is 45% what is 100%

Answers

Answer:

$40

Step-by-step explanation:

45% = 45/100 = 0.45

0.45x = 18x = 18/0.45x = 40

100% is $40

Answer:

solution given;

let total be X

45% of X=$18

X=$18×100/45=$40

So.100% is $40.

Solve each inequality. Then check each number that is a solution

I Don't know how to solve this. as nothing has helped so far.

Answers

Answer:

3, 6, 4, 5

Step-by-step explanation:

First of all we have to multiply 2 by 2x and -9 and we obtain

4x -18 ≤ 6

now we have to move -18 on the right side of the minor or equal and change its sign

4x ≤ 6 + 18

now we have to added up 6 and 18

4x ≤ 24

At least we have to divide the the two members by 4

x ≤ 6

We have to find the numbers ≤ 6

so the answer is : 3, 6, 4, 5

Answer:

click on 3,6,4,5 are less than or equal to 6

Step-by-step explanation:

2(2×3-9)= -6

2(2×6-9)= 6

2(2×4-9)= -2

2(2×5-9)= 2

2(2×7-9)= 10

An expression is shown below:

f(x) = 2x^2 − x − 10

Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)

Part B: Is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answers and show your work. (3 points)

Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph. (5 points)

Answers

Yo I got my phone call and wow

is this a function? please help

Answers

Where’s the photo. Display a photo or type out the problem.

here's the question ​

Answers

The answer is 2 because to find the area you multiple the base and hight then divide it by 2
The answer is 2 , hope this helps

Solve each equation.
1.5(n - 4) = -60
2.-3t+-8 = 25
3.7p - 8 = -22
4. (+40) = -4
5.4(w + 1) = -6

Answers

Answer:

1. n= -8

2. t= -11

3. p= -2

4. Not quite sure thats a proper equation.

5. w= -2.5 if thats the actual equation. if youre missing a 0 on 6 then its -15

Pls help asapppppp!!!!!

Answers

answer : a or 10

explanation :
f(4)=4^2 - 6
4f=4^2 - 6
4f=16 - 6
4f=10

1- “Dados provenientes de 2.783 homens e 5.018 mulheres maiores de 65 anos de idade da Pesquisa Nacional de Saúde dos Estados Unidos de 1990 determinaram a prevalência de atividade física regular, que naquele estudo foi definida como a participação em atividades físicas no tempo livre por três ou mais vezes por semana e por mais de 30 minutos nas últimas duas semanas. Com esses parâmetros os autores encontraram uma prevalência de atividade física regular de 37% no sexo masculino e 24% no sexo feminino.” Quantos idosos do sexo masculino e do sexo feminino praticam atividade física regular?

Answers

Answer:

no hable spanish

Step-by-step explanation:

The table below shows the number of people, y, who ride a roller coaster at a theme park over a certain number of hours, x, during a day. Write an equation that represents the relationship between the number of people that ride a roller coaster in terms of the time, in hours, as shown in the table. Use the on-screen keyboard to type the correct equation in the box.

Answers

Answer:

y = 350x

Step-by-step explanation:

To find the equation of the chart, we simply find the slope and then follow the slope-intercept equation.

Points on the chart: (0, 0) and (1.5, 525)

Slope:

m=(y2-y1)/(x2-x1)

m=(525-0)/(1.5-0)

m=525/1.5

m = 350

Slope-intercept:

y - y1 = m(x - x1)

y - 0 = 350(x - 0)

y - 0 = 350x

y = 350x

What is the measure of ZBAC?​

Answers

Step-by-step explanation:

50°+50°+θ=180°

θ=180°-100°

θ=80°

Answer:

80 or b....................................

There were 650 fruit in a fruit stall. 62% of the fruit were sold. How many fruit were left?

Answers

Answer:

62/100 multiplied by 650 which is 403 fruits left

There will be 247 fruits left
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