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

Answers

Answer 1

Answer:

Step-by-step explanation:


Related Questions

There are 32 students in the 6th grade at Garden Valley Middle School. Eight of them have freckles. What is the ratio of 6th graders with freckles to the total number of 6th graders?
A.
1:4
B.
4:1
C.
1:3
D.
3:1

Answers

Answer:

A. 1:4 is the answer of this question

Answer:

a

Step-by-step explanation:

there's a pattern that goes along with the 32 students in the 6th grade. since 8 is a factor (or multiple?) of 32, and 8x4 is 32, we can simplify.

so, 8 is the first multiple of 32 and 32 is the fourth. if we simplify that, we get 1:4.

the answer is 1:4.

19. As part of a cookie recipe, you mix cup of chocolate chips for every 1 cups of
sugar. How much chocolate chips do you need if you use a whole cup of sugar?

Answers

Answer: 1 cup

Step-by-step explanation: they have a 1:1 ratio

Answer:

1

Step-by-step explanation:

If you have 1 cup of chocolate chips for every 1 cup of sugar, that is a 1:1 ratio

A whole cup of sugar is equal to 1 cup of sugar

Therefore, you will have 1 cup of choloate chips for the whole cup of sugar

A train travels at 100 miles per hour. Write an equation that compares the time (t) with the distance (d).

t = 100d

d = 100t

d = t + 100

t = d + 100

Answers

Answer: d = 100t

Hope this helps!

Answer:

d = 100 * t

Step-by-step explanation:

    d

------------

S    l    t

distance = d

time = t

speed = 100miles/h

d = 100 * t

4/8 x 4/8 i dont care if you answer want to be fwen :)​

Answers

Answer:

1/4

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

4/8×4/8

16/64

6. Find the missing lengths of the sides.

Answers

Answer: D

30 60 90 trinagle rules

a=8

b=a sqaure root of 3 or 8square root of 3

c=2a or 2*8 or c=16

Step-by-step explanation:

Step-by-step explanation:

sin30°=8/c

1/2=8/c

8×2=c

16=c

tan30°=8/b

[tex] \frac{1}{ \sqrt{3} } = \frac{8}{b} \\ 8 \sqrt{3} = b[/tex]

option. d

solve pls brainliest

Answers

In coordinates, the first number is the x and the second one is y. In (4,2), 4 is the x and 2 is the y. The x axis goes from left to right and the y axis goes from up to down.

what is the solution to this inequality?
3n > 45.


A. n>15
B. n>42
C. n>48
D. n>135​

Answers

Answer:

the answer to your problem is c

Calculate the state income tax per year in PA on a salary of $55,000 *
1 point
$1688.50
$200.00
$700.00

Answers

Answer:

If you make $55,000 a year living in the region of Pennsylvania, USA, you will be taxed $11,017. That means that your net pay will be $43,984 per year, or $3,665 per month. Your average tax rate is 20.0% and your marginal tax rate is 32.8%.

Step-by-step explanation:

7+ За = 12 + 2а

Can anyone give the answer quick!

Answers

Answer:

A=5

Step-by-step explanation:

Answer:

A=5

Step-by-step explanation:

7+3a=12+2a

-2a -2a

7+a=12

-7 -7

a=5

please help with geometry homework

Answers

It’s the last option -> If a person is not in Japan, then the person does not live in Tokyo.

A living room is a compound shape made of two rectangles like the one
below. How many square feet of carpet would you need to cover the entire room?

Answers

Answer:

Step-by-step explanation:

702

the world population in 2016 was estimated to be 7.4 billion people and it is increasing by about 1.1% per year. assume that this percentage growth rate remains constant through 2030 explain why the population is an exponential function of time. what would you expect the world population to be in 2030

Answers

Answer:

1

Step-by-step explanation: i guessed

Question 25
Multiply two or more consecutive integers to obtain a six-digit palindrome whose first two digits are “47”. What is the sum of these consecutive integers?
(A palindrome is a number that reads the same backwards as forwards)

Answers

Answer:

234

Step-by-step explanation:

The number is in the form of:

47AA74

This is divisible by 2, can be divisible by 3 but not divisible by 4 as 74 is not divisible by 4.

So possible number of integers is 2 or 3.

Two consecutive integersThere is no possible product ending with 4 (test it yourself)Three consecutive integers

The numbers are x - 1, x and x + 1

The product is between 470074 and 479974

Their product is between:

(x - 1)³ < x³ < (x + 1)³470074 ≤ x³ ≤ 479974∛470074 ≤ x ≤ ∛47997477.75 ≤ x ≤ 78.29x = 78 is the only integer within this interval

Lets test:

77*78*79 = 474474

Sum of these:

77 + 78 + 79 = 234

I keep getting D wrong

Answers

Yeah d is wrong

:((( don’t know what it is supposed to be.

The cost of 6 sandwiches and 4 drinks is $53. The cost of 4 sandwiches and 6 drinks is $47.
How much does one sandwich cost?

A. $5.30
B. $3.50
C. $4.50
D. $6.50

Answers

D each sandwich coast $6.50

Answer:

look at the photo..........

Let p and q represent the following simple statements:

Answers

symbolic representation is .........p v q read as p conjunction q .

Plz mark me brainest .

Premier Consulting’s two consultants, Avery and Baker, can be scheduled to work for clients up to a maximum of 160 hours each over the next four weeks. A third consultant, Campbell, has some administrative assignments already planned and is available for clients up to a maximum of 140 hours over the next four weeks. The company has four clients with projects in process. The estimated hourly requirements for each of the clients over the four-week period are as follows:
Client Hours
A1 180
B2 75
C3 100
D4 85
Hourly rates vary for the consultant–client combination and are based on several factors, including project type and the consultant’s experience. The rates (dollars per hour) for each consultant–client combination are as follows:
Client
Consultant A B C D
Avery1 100 125 115 100
Baker2 120 135 115 120
Campbell3 155 150 140 130
a. Develop a network representation of the problem.
b. Formulate the problem as a linear program, with the optimal solution providing the hours each consultant should be scheduled for each client to maximize the consulting firm’s billings. What is the schedule and what is the total billing?
c. New information shows that Avery doesn’t have the experience to be scheduled for client B. If this consulting assignment is not permitted, what impact does it have on total billings? What is the revised schedule?

Answers

Answer:

The correct network diagram is the first one.

Step-by-step explanation:

Max 100 x 11 + 115 x 23 + 125 x 12 + 120 x 24 + 1 x 12 + 120 x 21 + 140 x 33 + 135 x 22 + 130 x 34 + 115 x 13 + 155 x 31 + 1

Excel formulation:

А B с D E F G H 1 1 2 2 3 4 5 6 7 Flow RHS Avery =SUM(C3:06) 160 Baker =SUM(C7:C10) 160 Campbell =SUM(C11:C14) 140 A =SUM(C3,

Solver inputs:

Set Objective: $D$15 To: Max Min O Value Of: 0 By Changing Variable Cells: $C$3:$C$14 + Subject to the Constraints: $G$3:$G$5

Solution:

Amount Billing

Avery-Client A 0 0

Avery-Client B 40 5000

Avery-Client C 100 11500

Avery-Client D 0 0

Baker-Client A 40 4800

Baker-Client B 35 4725

Baker-Client C 0 0

Baker-Client D 85 10200

Campbell-Client A 140 21700

Campbell-Client B 0 0

Campbell-Client C 0 0

Campbell-Client D 0 0

Total Billing  57925

Make 'Avery to B' zero in the solver entry and run the model again:

Amount Billing

Avery-Client A 0 0

Avery-Client B 0 0

Avery-Client C 100 11500

Avery-Client D 40 4000

Baker-Client A 40 4800

Baker-Client B 75 10125

Baker-Client C 0 0

Baker-Client D 45 5400

Campbell-Client A 140 21700

Campbell-Client B 0 0

Campbell-Client C 0 0

Campbell-Client D 0 0

Total Billing  57525

When converted to a household measurement, 9 kilograms is approximately equal to a

Answers

Answer: About 317.4 oz or 19 lbs! Pls Brainly Thx :D

Answer:

D) 19.8 lbs

Explanation:

1kg in household measurement is equal to 35.274 ounces. 35.274*9=317.466 ounces.

1kg is also equal to 2.205 lbs. 9*2.205=19.8416

9 kg is also equal to 9000 grams, but grams are not a part of the household measurement system

a) 9000 grams. b) 9000 ounces. c) 19.8 ounces. d) 19.8 pounds.

This leaves us with 19.8 lbs

The next model of a sports car will cost 6.3% less than the current model. The current model costs $45,000. How much will the price decrease in dollars? What will be the price of the next model?

Answers

Answer:fevagria un 30% de dinero

Step-by-step explanation:

Which math expression means "the quotient of an unknown number and 18"?

A. x ÷ 18

B. 18 • x

C. x – 18

D. x + 18

Answers

Answer:

[tex]option \: b.[/tex][tex]18•x[/tex]

Answer:

Step-by-step explanation:

34-18-(-23) write as a single number

Answers

Answer: 39

Step-by-step explanation: 34-18=16+23=39. Remember, 2 negatives equals a positive.

Answer: 39 cus 34-18=16+23=39

Step-by-step explanation:

Can you please answer this question?
R = E / I solve for I

Answers

I = E/R

Step-by-step explanation:

r = E/I

IF the bottom number of a fraction is multiplied the it's whole number version, the bottom of the fraction is gone and the letter moves to the other side

I*r = E/I * I

IR = E

divide both sides by R to get I by itself

IR/R = E/R

I = E/R

how do you determine volume?

Answers

Answer:   V = πr 2 h

Step-by-step explanation:

To calculate the volume of a cylinder, you must know its height and the radius of the circular base (the distance from the center of the circle to its edge) at the top and bottom. The formula is V = πr 2 h, where V is the Volume, r is the radius of the circular base, h is the height, and π is the constant pi.

solve plsw brainliest

Answers

Answer:

40%

Step-by-step explanation:

2/5 = 40/100 or 40%

Lucy brought 4 of her scarves to a secondhand store to sell. She was paid the same amount
of cash for each scarf. Before she left, Lucy spent $10.50 of her earnings on a used sweater.
She had $7.50 remaining. What was the value of each scarf?

Answers

The value of each scarf from the sales will be $4.50.

Since Lucy spent $10.50 of her earnings on a used sweater and she had $7.50 remaining, the total amount that she made from the sales will be:

= $10.50 + $7.50

= $18.00

Since she sold 4 scarves, the cost of each scarf will be:

= $18.00 / 4

= $4.50

Therefore, the value of each scarf will be $4.50.

Read related link on:

https://brainly.com/question/25225698

If 6 things cost $1000, how much does 1 cost?​

Answers

Answer:

$166.66

Step-by-step explanation:

if 6 items =$1000

1 item= ?

1item×$1000/6items

=$166.66

81 x

3y + 72x
2y
2 + 16xy
3

Answers

Answer:

Step 1 :Equation at the end of step 1

 ((81•(x4))-((72•(x2))•(y2)))+24y4

Step 2 :

Equation at the end of step 2 :

 ((81 • (x4)) -  ((23•32x2) • y2)) +  24y4

Step 3 :

Equation at the end of step 3 :

 (34x4 -  (23•32x2y2)) +  24y4

Step 4 :Trying to factor a multi variable polynomial

4.1    Factoring    81x4 - 72x2y2 + 16y4

Try to factor this multi-variable trinomial using trial and error

Found a factorization  :  (9x2 - 4y2)•(9x2 - 4y2)

Detecting a perfect square :

4.2    81x4  -72x2y2  +16y4  is a perfect square

It factors into  (9x2-4y2)•(9x2-4y2)

which is another way of writing  (9x2-4y2)2

How to recognize a perfect square trinomial:  

• It has three terms  

• Two of its terms are perfect squares themselves  

• The remaining term is twice the product of the square roots of the other two terms

Trying to factor as a Difference of Squares:

4.3      Factoring:  9x2-4y2

Put the exponent aside, try to factor  9x2-4y2

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  9  is the square of  3

Check : 4 is the square of 2

Check :  x2  is the square of  x1

Check :  y2  is the square of  y1

Factorization is :       (3x + 2y)  •  (3x - 2y)

Raise to the exponent which was put aside

Factorization becomes :   (3x + 2y)2   •  (3x - 2y)2  

Final result :

 (3x + 2y)2 • (3x - 2y)2

Step-by-step explanation:

Answer:

81x+16y

should be the correct one

A scientist drops a probe in the water. The depth of the probe changes −1 1/2 feet every second. How many seconds will it take for the probe to reach the bottom at a depth of −114 feet? ​

Answers

When converted to a household measurement, 9 kilograms is approximately equal to a

I need help I don't understand.

Answers

Answer:

x=6

Step-by-step explanation:

PLEASE HELP ME
The unit claims that you can increase the challenge of your workouts by using Newton’s first law of motion. We are given the example of running on sand or biking on gravel. What are some other ways that you can use Newton’s first law to create a more challenging workout? When you change the terrain, what is that force called?

Answers

Answer: Use Newton's first rule of motion to make your workout more difficult.

This rule says that until acted upon by an external force, a body continues in motion.

By altering the ground on which you exercise, you may reduce the influence of inertia on your exercises, as inertia maintains you going forward.

Workout on materials that slow it down your upward motion, requiring you to expend more energy to keep going ahead.

Run on sand rather than tarmac, or do aerobic exercises on rubber mats rather than wood flooring.

Happy To Help ;)

Step-by-step explanation:

Other Questions
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