If3r + 5y = 13 and 6r + 7 y = 20, find the value of

Answers

Answer 1

Answer:

Step-by-step explanation:


Related Questions

what is the answer to 12 divided by 51.6??? can i have an explanation to please if you guys don't mind??

Answers

Answer:

will u give the brainliest?

Combine the like terms to create an equivalent expression:

2
k

(

5
)
+
1

Answers

Answer:

-2k + 6

Step-by-step explanation:

We start out with the expression -2k - (-5) + 1. We should first distribute the negative outside of (-5), which gets us to 5: -2k + 5 + 1. Now, we can combine like terms with 5 and 1 to get 6, giving us a final answer of -2k + 6. We can't simplify any further since there aren't any like terms.

If you have any questions or need clarification on anything, let me know!

ASAP Lots of points!! 100 points!! Which expression is equivalent to 2^4 ⋅ 2^−7?
(Remember 2 to the power of 4 x 2 to the power of -7 = 0.125)
1 over 2 to the power 11
1 over 2 to the power 3
2 to the power of 3
2 to the power of 11
you can cancel out 2^11 and 2^3

Answers

Answer:

the answer for this is:

subtract 7 from 4 to get -3

you then have 2^-3

remove the negative exponent by rewriting as 1/(2^3)

Step-by-step explanation:

48 cookies; 50% increase​

Answers

Answer:

72

Step-by-step explanation:

48÷2= 24

48+24= 72

Hope this helps! :)

Answer:

its 72.00

Step-by-step explanation:

48.00 increased by 50% is 72.00

The increase is 24.00

45 to 60 using percent of change unit.

Answers

Answer:

A change from 45 to 60 represents a positive change (increase) of 33.3333333333%

Step-by-step explanation:

Percent change = 60 - 45

45

× 100 = 33.333333333333 % (increase)

Answer:

33.3% increase

Step-by-step explanation:

Percent of Change =

[tex] \frac{change}{original} [/tex]

The change would be 15:

60 - 45 = 15

So the percent of change would be:

15/45 = 1/3 = 33.3% increase

Hope this helps! Brainliest would be appreciated!

Are constants like terms

Answers

Step-by-step explanation:

yes , all constant are like terms.

A survey was given to 321 people asking whether people like dogs and/or cats.
136 said they like dogs
187 said they like cats
41 said they don't like cats or dogs.
How many said they liked both cats and dogs?
232
people liked both cats and dogs.
Submit Question

Answers

Answer:

o lawd somebody get Steve Harvey

Step-by-step explanation:

Members of a softball team raised $1319.25 to go to a tournament. They rented a bus
for $776.50 and budgeted $41.75 per player for meals. Write and solve an equation
which can be used to determine p, the number of players the team can bring to the
tournament. Giving 100 points please help

Answers

Answer:

13 players

Step-by-step explanation:

Money Raised=RentedBus+Meals

1319.25=776.50+41.75p (p is for the number of players)(Now we solve for x)

Subtract 776.50 from both sides:   542.75=41.75x

Divide both sides by 41.75:   13=x

Remember that x is for the number of players so there'll be 13 players going to the tournament.

Answer:

1319.25=776.50+41.75p

13 players

Step-by-step explanation:

Given matrices A and B shown below, find (−4)A+(−9)B.

Answers

see the answer in the attached picture.

Please help guys this is hard for my 3rd grader Brain

Answers

Answer:

Add/multiply the exponents first.

Step-by-step explanation:

Find the volume of the composite solid.

Answers

Answer:

volume

________

7 ft 8 ft 7.5 ft 7 ft

10 cm 10 cm 30 cm. 14.1 cm​

Answers

answer; you

Step-by-step explanation:

I dont know

sssooooooorrrrrrrrrryyyyyyyyyyyy

(02.05 MC)
Graph g(x), where f(x) = 4x - 2 and g(x) = f(x + 1).

Answers

[tex]\\ \sf\longmapsto f(x+1)[/tex]

[tex]\\ \sf\longmapsto 4(x+1)-2[/tex]

[tex]\\ \sf\longmapsto 4x+4-2[/tex]

[tex]\\ \sf\longmapsto 4x+2[/tex]

g(x)=4x+2

A company makes pens. They sell each pen for $9. Their revenue is represented by R = 9 x. The cost to make the pens is $3 each with a one time start up cost of $6500. Their cost is represented by C = 3 x + 6500. a) Find the profit, P, (P = R - C) when the company sells 1000 pens. 15500 0-500 O 9000 0-3500 0-9000​

Answers

Answer:

-$500

Step-by-step explanation:

C = 3(1000) + 6500

C = 3000 + 6500

C = 9500

R = 9(1000)

R = 9000

P = 9000 - 9500

P = -500

HELP ME SOLVE THIS PLSS

Answers

no solution,

48x+43=47x+43

     -43         -43

48x=47x

if x= 1

48 is not equal to 1

B

Answer:

B

Step-by-step explanation:

It's impossible to let these 2 equation have same answer!

7. A fundraising group charges $0.25 per cookie and has a daily expense of $18. Which of the
following describes the steps that need to be taken, in order to calculate the daily profit,
when selling 49 cookies? Please just tell me how to answer it not the answer

Answers

Answer:

Look below

Step-by-step explanation:

To answer the question, you have to find out how much 49 sold cookies amounts to, so multiply 49 by however much it is per cookie.

Then, subtract the daily expense, $18, by the number you got from the total amount earned from the cookies sold, and that number would show the daily profit earned by selling 49 cookies.

Hope this helps :)

The picture shows a sandwich box:

A sandwich box is shown with a right triangle side. The right triangle has hypotenuse 14 cm and base 12 cm.

What is the approximate minimum height of a shelf in which this box can fit in the position shown in the pi

Answers

Answer:

the answer is 7.2 cm

Step-by-step explanation:

14^2 is 196

12^2 is 144

196 - 144 = 52

square root of 52 = 7.2

also i did FLVS & got it right lol

Emily is 4 times as old as Tiffany. In ten years time, Emily will be twice as old as Tiffany . Find their ages.​

Answers

Question:

Emily is 4 times as old as Tiffany. In ten years time, Emily will be twice as old as Tiffany. Find their ages.

Solution:Let the age of Tiffany be x years.Then, the age of Emily = 4x years.After 10 years, the age of Tiffany will be (x+10) years.After 10 years, the age of Emily will be (4x+10) years.Therefore, by the problem

[tex]4x + 10 = 2(x + 10) \\ = 4x + 10 = 2x + 20 \\ = > 4x - 2x = 20 - 10 \\ = > 2x = 10 \\ = > x = \frac{10}{2} \\ = > x = 5[/tex]

So, Tiffany's present age = 5 years.Emily's present age = (4×5) years = 20 years.Answer:

Emily's age is 20 years and Tiffany's age is 5 years.

Hope it helps!


Suppose two trains leave a certain station, at the same time, traveling in opposite directions. One train travels 30 mph faster than the other. In 2.5 hours, the trains are 205 miles apart. Find the speed of each train


Answers

9514 1404 393

Answer:

  56 mph, 26 mph

Step-by-step explanation:

The trains are separating at the rate of (205 mi)/(2.5 h) = 82 mi/h. If we let s represent the speed of the slower train, then that sum of their speeds is ...

  s + (s+30) = 82

  2s = 52 . . . . . . . . . . subtract 30

  s = 26 . . . . . . . . . divide by 2

  s +30 = 56 . . . the speed of the other train

The speeds of the two trains are 56 mph and 26 mph.

what is the value of p(x)=4x+15 ?

Answers

Answer:

The answer is 10x

Step-by-step explanation:

10.com
Leg, width
and height

Answers

Answer:

420 cm^3

Step-by-step explanation:

1. The volume of a rectangular prism is [tex]l * w * h[/tex], where l = length, w = width, and h = height.

2. (Solving)

[tex]6*7*10[/tex] [tex]42*10[/tex] [tex]420[/tex] 420 cm^3

Therefore, the volume is 420 cm^3.

the 4.1 m of concrete is made into the shape of a cylinder. The base has radios 0.5 metres. work out the height of the cylinder ( photo attached)

Answers

Answer:

5.22m

Step-by-step explanation:

Rearrange the formula - volume = π × r² × h:

h = volume ÷ (π × r²)

volume = 4.1m³r = 0.5

Plug in the numbers:

h = 4.1 ÷ (π × 0.5²)

h = 5.22028... ≈ 5.22m

Hope this helps!

A class of 40 students took a test 20 students had an average score of 65. the other students had an average score of 52. what is the average score of the whole class?

At a health club, 28% of the members are men, the rest are women. If the average man is 33 years old, and the average woman is 38 years old, what is the average age of all the members?​

Answers

Answer:

One: 58.5

Two 36.6

Step-by-step explanation:

One

20 students * 65 = 1300 This is the total score of all 20 students. They may not all get 65, but 1300 is what their average total is.

20 students * 52 = 1040

The total score of all 40 students was 1300 + 1040 = 2340

The average for the entire class was 2340 / 40 = 58.5

Two

This question is done almost the same way.

Supposes the total number of members is 100. That means that 28 of them are men

28 * 33 = 924     This is the total age for the men

100 - 28 = 72        Out of 100, 72 of the people there are women.

72 * 38 = 2736

The total number of years of all of the members is

924 + 2736 = 3660      

The average age of all members is 3660/100 = 36.6

Why did I pick 100 as the total membership? It is because a percentage is number out of 100. Am I allowed to invent things like that? Sure. I'm just using the definition of a percentage.

The average will make it come out the same.

How do I write a percent as a fraction in simplest form? Please explain step by step to get marked

Answers

Step-by-step explanation:

Divide the percentage by 100. E.g 74%=64/100

Then simplify the newly made fraction,

Find the common factors,

E.g 64/100

Both can be divided by 2

32\50

Repeat simplifying step...

16\25

Till there are no more common factors

and that's the final answer...

Hope you understand, if not leave a comment and I'm ready to help, please mark BRAINLIEST.

A meter is a unit of length approximately equal to 39.37 inches. If someone is 77 meters​ tall, what is his or her approximate height in​ inches?

Answers

Answer:

It is 3031.49 Inches.

Step-by-step explanation:

77 times 39.37

= 3031.49

4x^2y^7(-7x^6z^9+2y^3+6z^3)

Answers

Answer:

-28x⁸y⁷z⁹ + 8x² y ¹⁰ + 24x²y⁷z³

Step-by-step explanation:

1) Distribute

4x²y⁷(-7x⁶z⁹ + 2y³ + 6z³)

-28x⁸y⁷z⁹ + 8x² y ¹⁰ + 24x²y⁷z³

Answer:

-28x^8y^7z^9 + 8x^2y^10 + 24x^2y^7z^3.

Step-by-step explanation:

4x^2y^7(-7x^6z^9+2y^3+6z^3)

Expanding:

= -28x^8y^7z^9 + 8x^2y^10 + 24x^2y^7z^3.

Bobby is in an office manager at a weekly newspaper. He earns $22.50 per hour. How many hours per week does Bobby work if he earns $522 per week? Show Work please.

Answers

Divide total pay by hourly rate:

522 / 22.50 = 23.2 hours

Answer: 23.2 hours

1. What reasons did the members of the Constitutional Convention have for creating the Electoral College?
2. How have voters in America changed since the Constitution was created?

3. Should the Electoral College continue to be used? Why or why not? Use examples from your research to support your answer.

Please help me~!!

Answers

Answer:

Non veg se mujhe Run movie ka kawuaa biryaani yaad aa gya

Step-by-step explanation:

Accha bhai koi mujhe batao  

Pahle murgi ya anda  

Wait your answer

4. Which values are solutions of
2x – 1= 7? Select all that apply.
A) X=-4
(B) x = -3
C=3
D= 4

Answers

Answer:

D. x = 4

Step-by-step explanation:

2x – 1= 7

add 1 to both sides:

2x=8

divide both sides by 2:

x=4

One solution.

What’s the LCM of 9 and 6

Answers

Answer:18

Step-by-step explanation:

6 : 6,12,18

9: 9,18

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

LCM (9,6): 18

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\text{Multiples of 6: }6,12,\textbf{18},24\\\\\text{Multiples of 9: } 9,\textbf{18}, 27, 36\\\\\\\text{Since 18 is the first common multiple that appears, it is the LCM.}[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

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