The sum of two numbers is 51.

The difference of the same two numbers is 9.

What are the two numbers?

Answers

Answer 1

Answer:

21 and 30

Step-by-step explanation:

x + y = 51

x - y = 9

add the two equations and y's will cancel out

2x = 42  divide by 2

x = 21   so put 21 in for x in the top equation and solve

21 + y = 51

y = 30


Related Questions

HELP FAST

WILL MAKE BRAINLIEST

Answers

Answer:

x = 0.357143

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

-1.6 - 2x = 5x + 0.9

Step 2: Solve for x

Add 2x on both sides:                    -1.6 = 7x + 0.9Subtract 0.9 on both sides:           2.5 = 7xDivide 7 on both sides:                  0.357143 = xRewrite:                                           x = 0.357143

7.4D
The number of cupcakes in a case decreased from 140 to 120. What is the percent
decrease of the number of cupcakes in the case? Round to the nearest whole number.
A. 12%
B. 14%
C. 13%
D. 10%

Answers

D


- Harvard university professor

Molly earns a rebate each month on her movie tickets and books. She earns $0.25 for each movie ticket and $2 for each book. Last month Molly purchased 4 movie tickets
and earned $17.
Part A: Create an equation that will determine the number of books she purchased. (3 points)
Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points)
Part C: How many books did Molly purchase last month? (1 point)

Answers

Answer:

Step-by-step explanation:

A

lets say   t is each ticket

and b is each book

0.25t + 2b = 17 that is for both

for just books

2b = 17

A car travels 9km southwards, followed by another 5km southwards. What is the magnitude of its distance and displacement?*

Select one:
a. Distance: 14 km Displacement: 14 km
b. Distance: 14 km Displacement: 4 km
c. Distance: 4 km Displacement: 14 km
d. Distance: 4 km Displacement: 4 km

Answers

I think answer should be d. Please give me brainlest let me know if it’s correct or not okay thanks bye


Which system of equations would have no
solution?
A x + y = 4 and y = -x + 4
B y = 3x + 2 and y=-3x - 2
Х
2x + y = 10 and y = -2x + 10
D 3x + y = 8 and 3x + y = 9

Answers

Answer:

hi it's

Easy B

Step-by-step explanation:

No Problem

a hotel at your vacation destination quotes you a rate of $200/night. you find a similar hotel in town for 25 percent less. if you select the less expensive hotel, how much will you pay for a three-night stay?

Answers

Answer: $450

Step-by-step explanation:

Since the similar hotel in town goes for 25 percent less, that means that (100.- 25) = 75% would be paid. This will be:

= 75% × $200.

= 75/100 × $200.

= $150

The amount paid for a three-night stay will be:

= $150 × 3

= $450

Simplify,
-11c+2+11c

Answers

Answer:

2

Step-by-step explanation:

+11c and -11c cancel each other out so you only have the 2 left

Answer:

2

+11c and -11c cancel each other out so you only have the 2 left

Step-by-step explanation:

i think it's the answer from other brainly

-6x + 5 = 17
What’s the answer

Answers

Answer:

x = -2

Step-by-step explanation:

-6x + 5 = 17

First, combine the constants by subtracting 5 from each side.

-6x = 17 - 5

-6x = 12

Now you want x by itself, so divide both sides by -6.

x = -2

Check your answer by plugging x = -2 into the original equation.

-6(-2) + 5 = 17

12 + 5 = 17

17 = 17

Your answer is correct.

Answer:

-2

Step-by-step explanation:

-6x + 5 = 17

-6x = 17 - 5

-6x = 12

-6x = 12

6 6

-x = 2

-x = 2

-1 -1

x = -2

Can you help me with this pls

Answers

Answer:

D

Step-by-step explanation:

To subtract a negative is basically adding because the negatives cancel out.

What is the product of -25and -0.8? Select all that apply.

Answers

Answer:

The product of -25 and -0.8 is 20

Answer:

There’s no select but I’ll give you the answer

The answer is 20

Step-by-step explanation:

Wehn multiplying by 2 negatives it’ll be positive

negative*negative=positive

positive*positive=positive

negative*positive=negative

So then jsut multiply normally

Move the decimal place when done

Point V lies between points U and W on Line segment U W.
If UW = 9x – 9, what is UW in units?

Answers

Answer:

See Below

Step-by-step explanation:

2x - 4 + 4x + 10 = 9x - 9

6x + 6 = 9x - 9

3x = 15  

x = 5  

UW = 9x-9 = 9*5-9  

UW = 36 units

Answer:

36

Step-by-step explanation:

UW = UV + VW

9x - 9 = 2x - 4 + 4x + 10

9x - 2x - 4x = -4 + 10 + 9

3x = 15

x = 5

UW = 9x - 9 = 9(5) - 9 = 45 - 9 = 36

Bart is selling popcorn and candles to buy a new
skateboard. Popcorn sells for $6 per bag and candles
sell $18 each. A total of 888 items were sold and $6960
was raised. How many of each item was sold?

Answers

Answer:

Bart sold 290

Step-by-step explanation:

if i did my math correctly it would be 290, i hope this helps

have a great day!

______________________________

290 Items Were Sold

$18 + $6= $24= $6,960 ÷ $24= 290

_______________________________

Select the TWO numbers that have a 4 in the thousandths place. *

Answers

Answer:

54,436.004 and 247,892.984

Step-by-step explanation:

Answer:

third and fourth

Step-by-step explanation:

Please help me......!

Answers

the answer would be 100 pounds of chicken and 30 pounds of beef

i need to find the slope from two points i don’t know how to do this!show work please!!

Answers

The slope is -7/4.
To find the slope you can first subtract the two ys. and get -7. Because the y is negative it means the slope will be negative. You can then subtract the xs and get -4. You can make a fraction from these two numbers, always putting the y on top, and the x on the bottom.

please help what is 3x + 2 = 11

Answers

3x = 11 -2

3x = 9

x = 3

just make X the subject of the formula and you will get to ur final answer. Easy.

Answer:

x=3

Step-by-step explanation:

3x+2=11 minus 2 on both sides

3x=9

divide both sides by 3

x=3

The terminal side of Ø is in quadrant IV and cos Ø + 5/13, what is sin Ø?

A. -5/12
B. -12/13
C. 12/13
D. 5/12

Answers

Answer:

It’s -12/13

Step-by-step explanation:

The value of the sin Ø is -12/13 because sin is negative in IV option (B) is correct.

What is the trigonometric ratio?

The trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.

We have:

The terminal side of Ø is in quadrant IV quadrant

cosØ = 5/13

sin²Ø = 1 - cos²Ø

sin²Ø  = 1 - (5/13)²

sinØ = √(144/169)

sinØ = -12/13 (negative in IV)

Thus, the value of the sin Ø is -12/13 because sin is negative in IV option (B) is correct.

Learn more about trigonometry here:

brainly.com/question/26719838

#SPJ5

A third line intersects two lines (A transversal). Which condition would always make the two lines parallel?

A) Vertical angles are congruent.
B) Alternate interior angles are congruent.
C) Corresponding angles are supplementary.
D) Same-side interior angles are complementary.

Answers

It is c corresponding

the bill is 87.00 you leave a 12% tip what is the amount of the tip?

Answers

Answer:

$10.44

Step-by-step explanation:

..I think it’s 10.44

i will give brainlyest if you help me with this

Answers

Answer:

no ,Alex

Step-by-step explanation:

yes E has more but 9 out of 25 so she was supposed do even more than Alex she missed 16,alex got 8 out of 20 so he only  missed 12 of his shots and has fewer chances to make more.

No you have to also consider the number of attempts, not just the number of shots made. 9 out 1000 isn’t better than 9 out 10.

9/25 = 36%
8/20 = 40% alex is better.

12 13 & 14
please help. due soon

Answers

Answer:

(12) The perimeter of the four shaped figure is 12x - 10

(13) The perimeter of the rectangle is 18x + 10

(14) The perimeter of the hexagon is 24x

Step-by-step explanation:

(12) The perimeter of the four shaped figure is calculated as;

P = (x )  +   (3x + 2)    +  (6x - 17)   +  (2x + 5)

Collect like terms together, in order to simplify the expression

P = (x + 3x + 6x + 2x) + (2 - 17 + 5)

P = 12x - 10

(13) The perimeter of the rectangle is calculated as;

P = 2( L + B)

P = 2L + 2B

Where;

L is length of the rectangle

B is the breadth of the rectangle

P = 2 (6x + 5) + 2(3x)

P = 12x + 10  + 6x

P = 18x + 10

(14) The perimeter of the hexagon is calculated as;

P = 6L

Where;

L is length of each side

P = 6 (4x)

P = 24x

please help me please will give brainliest to anyone who is good

show your work ​

Answers

Answer:

B

45 loaves x 5 cups/loaf = 225 cups

225 cups ÷ 4 cups/pound = 56.25 pounds

Can someone please help me with this. Thanks! :)

Answers

Answer:

7

Step-by-step explanation:

I'm pretty sure it's just asking for the volume of a sandbox

The equation for this is easy to memorize

it's

L*W*H

L=Length

W=Width

H=Height

So we just multiply everything together and get

7/3*1.5*2=7

help please asap will mark crown

Answers

Answer:

d

Step-by-step explanation:

Answer:

a) 4√ 10

Step-by-step explanation:

We know that, diagonal of a rectangle = √ ( length ^2+width ^2)

So, diagonal= √ (12^2+4^2)

=√ 160

=4√ 10

Given the graph below, what is the zero(s)?

Answers

Answer:

-2 and 2

Step-by-step explanation:

The term 'zeros' refers to the roots/x-intercepts of the function. In this instance, the zeros of the function are -2 and 2.

Sonny has $200. Each game he buys online costs $.99. After buying some games he has $178.22 left. How many games did he buy?

Answers

he bought 22 games. 200-178.22=21.78 and if you divide that 21.78 by .99 you get 22 games

Find the slope of the line : (0, 0), (3, 3)

Answers

Answer:

m=1

Step-by-step explanation:

calculate slope (m) with this formula: (y2-y1)/(x2-x1)

here are the given points: (0,0) and (3,3)

label the points

x1=0

y1=0

x2=3

y2=3

now substitute into the equation

m=(3-0)/(3-0)

m=3/3

m=1

the slope is therefore 1

hope this helps :)


Stella is making a juice-mix that uses apple juice and pomegranate juice in a 5:8 ratio. Which all of the following
options describe how Stella should buy apple juice and pomegranate juice? Select all that apply.
A For every 8 liters of pomegranate juice Stella buys, she buys 5 liters of apple juice.
B The difference between the amount of pomegranate juice and apple juice Stella buys must be 3 liters.
For every 5 cups of apple juice Stella buys, she buys 8 liters of pomegranate juice.
D Stella must buy exactly 5 bottles of apple juice and 8 bottles of pomegranate juice.
E For every 13 liters of juice Stella buys, 8 of them are pomegranate juice.

Answers

The options that apply are:

For every 8 liters of pomegranate juice stella buys, she buys 5 liters of apple juice.

The difference between the amount of pomegranate juice and apple juice must be 3 liters.

What is ratio?

Ratio shows  the number of times a given quantity exceeds the other when sharing takes place.

Analysis:

ratio 5:8 states that out of x liters of total juice stella needed she would get 8 litters of pomegranate for every 5 liters of apple juice she gets.

Learn more about ratio: brainly.com/question/2328454

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WILL GIVE BRAINLIEST ​

Answers

Answer:

HARAMBE KNOWS THE ANSWER!!!!!!!!!!!!!!1111Write an essay of at least 250 words that summarizes the main points of the essay by Langston Hughes. Use the information you gathered from your literary analysis to help with your summary. Be sure to create an outline and structure your essay with a thesis statement and supporting details..

Step-by-step explanation:

PLEASE HELP!!!
I don't understand it at all :(

Answers

1.
The x intercept is where the line hits or crosses the x axis (lower line). In this graph, Mark, (the right graph) the x intercept hits the number 10

So it is (0,10)

2.

The answer for this one is (0,10) because (x,y)

Hope this helps!! If you can, please give me brainlist :)
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