Find x+y, if: 2x+3y=8 and 3x+5y=13

Answers

Answer 1
Answer is x = 1 & y = 2
the answer can be found using math-way

Related Questions

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

Yes

Step-by-step explanation:

Angle sum property=180°

The first triangle = 105°+40° = 145°= 180-145=35

The second triangle = 105°+35°=140°=180-140=40

So both are same

Try to find the third angle in both triangles and if the angles of both triangles are same, it means the triangles are similar

for every 5 red cars there are 8 black cars. If there are 24 more black cars than red cars how many total vehicles are there​

Answers

Answer:

15 red cars + 24 black cars = 38

The total vehicles are 104.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

For every 5 red cars there are 8 black cars.

And, There are 24 more black cars than red cars.

Here, For every 5 red cars there are 8 black cars.

Hence, Number of red cars = 5x

Then, Number of red cars = 8x

And, There are 24 more black cars than red cars.

Hence, We get;

⇒ 24 + 5x = 8x

Solve for x as;

⇒ 24 = 8x - 5x

⇒ 24 = 3x

⇒ x = 8

Thus, Number of total vehicles = 5x + 8x

                                                = 5×8 + 8×8

                                                = 40 + 64

                                                = 104

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ5

Yall, is this correct? And sorry for my bad handwriting for the answer btw-

Answers

Pretty sure it is (:

Find the product: (1.2) · (0.11)

Answers

Answer:

The answer is 0.132

Step-by-step explanation:

12/10*11/100

132/1000

=0.132

When solving, your product should have the answer, 7.868

in the table approximately how much gallons does an average household use every day for showers and for the toliet

Answers

Answer:

238 gallons

Step-by-step explanation:

81 + 60 + 53 + 44 = 238

134    Step-by-step explanation:

Find the area of the trapezoid shown and choose the appropriate result

Answers

Answer:

B:  13.5 in^2

Step-by-step explanation:

The average length of this trapezoid is (4 in + 5 in)/2, or 4.5 in.

The height is 3 in.

Thus, the area is A = (average length)(height) = (4.5 in)(3 in) = 13.5 in^2

what is 921-588? im in fifth grade but its too hard for me

Answers

Answer:

333 use a calculator LOL

easy question ill give brainliest

Answers

Answer:

Middle one

Step-by-step explanation:

Answer:

y=10xz

Step-by-step explanation:

Complete the square for 5x2 – 30x = 5.
O A. (x - 3)2 = 10
O B. (5x - 3)2 = 8
O C. (5x - 3)2 = 14
O D. (x + 3)2 = 10

Answers

By transforming the second order polynomial 5 · x² - 30 · x = 5 into its standard form, the polynomial is equivalent to (x - 3)² = 9.833. (Correct choice: A) #SPJ5

How to transfrom a given second order polynomial into its standard form

The standard form of a parabola is a synthetic form that brings useful information of the geometric locus. This form is derived by applying the method of completing a square, which is based on algebra properties to transform and reduce a part of a second order polynomial into a perfect square trinomial.

Now we proceed to show the procedure to obtain the expression equivalent to the polynomial described in the statement:

5 · x² - 30 · x = 5

x² - 6 · x = 5/6

x² - 6 · x + 9 = 59/6

(x - 3)² = 59/6

(x - 3)² = 9.833

By transforming the second order polynomial 5 · x² - 30 · x = 5 into its standard form, the polynomial is equivalent to (x - 3)² = 9.833. (Correct choice: A) #SPJ5

To learn more on completing the square, we kindly invite to check this verified question: https://brainly.com/question/4822356 #SPJ5

product of 2,4,6 please tell​

Answers

Answer:

Product of 2,4,6 is 48❤️❤️❤️❤️

2×4×6 ⇒ 8×6 ⇒ 48

I hope its clear for you

Maura runs 5 miles in 1.25 hours. Ava runs 3 miles in 50 minutes or 0.83 hour who runs faster

Answers

Answer:

Maura runs faster

Step-by-step explanation:

Set them up as fractions:

miles / hours, then divide to

compare the results:

Maura: 5 / 1.25 = 4 MPH

Ava: 3 / .83 = 3.6 MPH

Answer:

Maura.

Step-by-step explanation:

Maura:

5 miles/1.25 hours = 4 mph

 

Ava:

3 miles/(.83 hours) = 3.61 mph

Maura ran faster.

PLS HELP I DONT UNDERSTAND !

Answers

Answer:

I think the answer is 24

Step-by-step explanation:

hope its helpful

A
The length of Kathy's rectangular
garden is 4 feet more than the width. If
the perimeter of her garden is 40 feet,
what is the length of Kathy's garden?

Answers

Half the perimeter is the length + the width.

Let the width = x

The length is x + 4. ( 4 feet more than the width)

Now you have x + x + 4 = 20

Combine like terms:

2x + 4 = 20

Subtract 4 from both sides:

2x = 16

Divide both sides by 2:

X = 8

The width is 8 feet

The length is 8 + 4 = 12 feet

Answer:12

Step-by-step explanation:

because im smart

The store is offering a 15% discount .
The regular price of a hat is $18 , what is the discount price?

Answers

Answer:

$15.30

Step-by-step explanation:

You drive a car that holds 15 gallons of gasoline. Your car uses 0.03 gal per mile. Which equation best represents this information

Answers

Option B is the correct answer because you start with 15 gallons (y-intercept), and the car consumes or decreases at 0.03 gal/per mile (your slope or m).

which of the lines graphed has a slope of -2 and a y-intercept of 3

Answers

Answer:

I think b

Step-by-step explanation:

need a better quality photo

Answer:

B

Step-by-step explanation:

It's a little hard to see but I'm pretty sure it's B because we're looking for a graph that has a slope of -2 so it couldn't be A or D because they have positive slopes since they are pointing up. That leaves B and C. I can't really see but C doesn't look like it has a slope of -2, so I went with B because it has a y-intercept of 3 and looks like it has a slope of -2.

Tap on image above I need help please help! You don’t have to answer all just the ones you can do please and thank you

Answers

Answer

#8 is 17.7

Explanation:
13^2+12^2 = c^2
C = 17.7

Hello,

If you have noticed they are all right angles, which means you can use  Pythagorean theorm.

1. a^2 = 40^2 + 9^2

= a^2 + 1600 + 81

= 1681

a^2 = 1681

sovle for "a"

a = 41

hope this helps.

4(x+y) distributive property

Answers

I think it is:
4(x+y)
=4x+4y

Hopefully this helps :)

What is the 4th equivalent fraction to 1/3?​

Answers

1/3
2/6 - 1
3/9 - 2
4/12 - 3
5/15 - 4

Could anyone help me with this question please?

Answers

construction = divide the figure into two parts.

now we have triangle abd and bdc.

first calculate the area of abd.

area of triangle= 1/2×base ×height

area of triangle= 1/2×18×7.5

area of triangle=67.5cm²

second calculate area of bdc

area of triangle=1/2×15.6×11.7

area of triangle=91.26cm²

area of the figure=area of abd + area of bdc

area of the figure=67.5cm²+ 91.26cm²

area of figure=158.76 cm².

find the difference
1. 4-3/5
2.5-4/7
3.6-2/3
4.5-7/8
5.7-2/5​

Answers

1) with 3/5 as a fraction one whole number can be written as 5/5

so you could rewrite 4 as 3 and 5/5 now subtract 3/5 and you are left with

3 and 2/5

2) one whole number can be written as 7/7

Now you have 4 and 7/7 minus 4/7 to get 4 and 3/7

Using the same steps for the rest:

3) 5 and 3/3 -2/3 = 5 and 1/3

4) 4 and 8/8 - 7/8 = 4 and 1/8

5) 6 and 5/5 - 2/5 = 6 and 3/5

Find the product of (x2 -4xy + y2) (x – 2y) if x = 3 and y = 2​

Answers

Step-by-step explanation:

Please refer to the attachment

If a number is doubled and 12 is added to it. The result is 40 what's the number

Answers

40 - 12 = 28

28/2 = 14

Answer:

To solve for n, working backwards can help a lot.

Step-by-step explanation:

The last step we took to result in 40 was to add 12. Therefore, working backward would acquit us to subtract 12.

40 - 12 = 28

After we have done that, we need to observe the first step that we took. This was to double n. Similar, to the last order of operations we took in the previous step, we need to perform the opposite of doubling a number. Because the number is being doubled, it is being multiplied by itself. For example, if we double 4, we would receive 8. Likewise, 4² is 8. So, what is the opposite of multiplication? Well, it's division of course!

28 ÷ 2 is 14.

Therefore, n is 14.

anyone can answer this ill give brainliest

Answers

Answer:

15

Step-by-step explanation:

trust me

Answer: 5 plus 2 times 10=25

Step-by-step explanation:

Convert improper fractions to mixed numbers

Convert:

Answers

Answer:  

9   (5/12)

9  (1/2)

3   (3/5)

6   (1/4)

6  (1/4)

5   (1/5)

4  (1/3)

9   (3/4)

6   (4/5)

5   (2/5)

6   (5/8)

7   (1/5)

5   (1/2)

5   (5/8)

8   (2/5)

Step-by-step explanation:

I simplified the fractions too.

1. 9 5/12

2. 9 1/2

3. 3 3/5

4. 6 1/4

5. 6 1/4

6. 5 1/5

7. 4 1/3

8. 9 3/4

9. 6 4/5

10. 5 2/5

11. 6 5/8

12. 7 1/5

13. 5 1/2

14. 5 5/8

15. 8 2/5

the difference of products of a fraction with 5 whole 7/8 and 3 whole 3/4 is 11.Find the fraction.​

Answers

Answer:

88/17

Step-by-step explanation:

5x · 7/8 - 3x · 3/4 = 11

35x/8 - 18x/8 = 17x/8

17x/8 = 11

17x = 88

x = 88/17

the expression
17x + 50 - 12 x + 1

Answers

Answer:

5x+51

Step-by-step explanation:

17x + 50 - 12x + 1

= 17x - 12x + 50 + 1

= 5x + 51

PLEASE HELP I WILL MARK YOU BRAINLIEST The function h(t)=- 16t^2 +92t describes the height of a model rocket. Use technology to graph the
function and answer the questions below. Round your answers to the nearest hundredths (3 points)
a. At what times is the model rocket at a height of 100 feet?
b. For how long is the rocket in the air?

Answers

Answer:

Step-by-step explanation:

100 = -16t^2 + 92t

16t^2-92t + 100 = 0

4t^2 - 23t + 25 = 0

t = [23 ±√(23^2-4(4)(25))]/[2(8)] ≈ 1.5, 4.3

The rocket has altitude of 100 ft at 1.5 sec and 4.3 sec.

:::::

0 = 16t^2-92t = t(16t-92)

t = 0, 5.75

Rocket is in the air for 5.75 seconds

Ben and timothyshare some money in the ratio of 3:4. Ben got $21, how much does timothy
gets?​

Answers

Answer:

$28

Step-by-step explanation:

$21 is 3/7

1 part = $7

4x7=28

Josie wants to hang a “Happy Birthday” banner across the diagonal of a rectangular opening that has a width of 9 feet and a height of 12 feet.
How many inches long should the banner be?

Answers

If the answer is 29 then the correct formation of the equivalent answer would be 245

Length of banner is 15 feet

Given that;

Width of rectangle = 9 feet

Length of rectangle = 12 feet

Find:

Length of banner

Computation:

Length of banner = Length of diagonal

[tex]Length\ of\ diagonal = \sqrt{Length^2 + Width^2}\\\\ Length\ of\ diagonal = \sqrt{12^2 + 9^2}\\\\ Length\ of\ diagonal = \sqrt{144 + 81}\\\\ Length\ of\ diagonal = \sqrt{225}\\\\ Length\ of\ diagonal = 15 \ feet[/tex]

So,

Length of banner = 15 feet

Learn more:

https://brainly.com/question/16167300?referrer=searchResults

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