Question: Jlm has a total of 77 red and blue marbles. The number of blue marbles is five more than twice the number of red marbles.
a. Write a pair of linear equations to represent the information Be sure to state what the variables represent. b. Explain the substitution method of solving this pair of equations Solve the equations to find the number of red marbles. Show your work​

Answers

Answer 1

Answer:

24 red and 53 blue

Step-by-step explanation:

Red marbles = rBlue marbles = b

Required equations:

r + b = 77b = 2r + 5

Substitute b into first equation:

r + 2r + 5 = 773r = 72r = 24

Find b:

b = 2*24 + 5 = 53

Related Questions

Can someone explain to me how to answer this question? Thank you!

Answers

Answer:

y<13/2

Step-by-step explanation:

5y+4<3y+17

5y-3y<17-4

2y<13

y<13/2

Answer:

y < [tex]\frac{13}{2}[/tex]

Step-by-step explanation:

Given

5y + 4 < 3y + 17 ( subtract 3y from both sides )

2y + 4 < 17 ( subtract 4 from both sides )

2y < 13 ( divide both sides by 2 )

y < [tex]\frac{13}{2}[/tex]

HELP ME WITH THESE PROBLEMSS PLEASE

Answers

Help yourself

Yeaaaaaaaaaaaaa

The ratio of cats to dogs was 3 to 7. If there were 300 cats and dogs in all, how many were cats?

Answers

Answer:

700

Step-by-step explanation:

The ratio of cats to dogs was 3:7

Divide 300 by 3

=100

multiply 100 and 7

=700

Step-by-step explanation:

let common ratio be x

3x + 7x = 300

10 x = 300

x = 300/10= 30

there common ratio x is 30

3 x 30 =90 cats

7 x 30 = 210 dogs

h e l p
will give brainiest

Answers

Answer:

Step-by-step explanation:

3 × (4 + 5) - 6 = 21

4 × (3 + 2) - 8 = 12

Which expression is equal to "four times the sum of twelve and a
number"?
a) 4x 12+n
b) (4x12) +n
c) 4x (12+ n)
d) 4+ (12 x n)

NEED A ANSWER ASAP

Answers

Step-by-step explanation:

a) 4x 12+n = There are no like terms )

b) (4x12) +n = There are no like terms )

c) 4x (12+ n)  = 4nx+48x

d) 4+ (12 x n) =12nx+4

( I hope this was helpful ) >;D

Carol ate 25% of the candies in the bag. If Carol ate 24 candies, how many candies were there total in the bag?

Answers

Answer:

6

Step-by-step explanation:

100/4 = 25%

24/4 = 6

To purchase $14,500 worth of restaurant equipment for his business, Hans made a down payment of $1800 and took out a business loan for the rest. After years of paying monthly payments of $562.88. , he finally paid off the loan.

Answers

Answer:

hello your question is incomplete below is the complete question

To purchase $14,500 worth of restaurant equipment for his business, Hans made a down payment of $1800 and took out a business loan for the rest. After 2 years of paying monthly payments of $562.88. , he finally paid off the loan. What was the total amount  Dean ended up paying for the equipment ( including the down payment and monthly payments )

answer: $15309.12

Step-by-step explanation:

Initial cost of equipment = $14500

Down payment = $1800

cost of equipment = 14500 - 1800 = $12700

Monthly payment = $562.88

Therefore payment made after 2 years = ( 562.88 * 24 ) = $13509.12

Total amount paid by Dean for the equipment

= down payment + monthly payments

= $1800 + $13509.12

= $15309.12

Work out the mean of these three numbers

Answers

Answer:

110

Step-by-step explanation:

Let the three numbers be 100, 110 and 120

100 + 110 + 120 = 330

Total numbers = 3

[tex]mean = \frac{330}{3} = 110 \\ [/tex]

measure of one angle of a parallelogram is 40 degree more than the other.find the angles.​

Answers

Answer:

Below in bold.

Step-by-step explanation:

If one angle is x then the other is x+40 degrees.

These angles sum to 180 as we have a parallelogram, so

x + x + 40 = 180

2x = 140

x = 70.

So the angles are 70 and 110

Answer:

110 ,70,110,70 are the angles

EXPLANATION:

Let's say that angle 1 is x

This means another angle will be x - 40

The sum of all 4 angles is 360

The sum of two angles 180

x + x - 40 = 180

2x = 220

x = 110

180 - 110 = 70 meaning that each side has an angle measuring 110 degrees and an angle measuring 70. And 110 - 70 = 40 like you mentioned

MARK ME BRAINLIEST IF MY ANSWER HELPED

Anna went to the store to buy a new dress. The dress she chose was 30% off the original price. What was the original price of the dress that was marked down dollars 13.95?

Answers

Answer:

$46.5

Step-by-step explanation:

Let X be the original price.

0.3X=13.95, X=13.95/0.3, X=46.5.

Answer:

18.135

Step-by-step explanation:

13.95×30/100=4.185

13.95+4.185=18.135

Six more than the quotient of a number be in 30 is greater than three

Answers

Answer: 14



Step-by-step explanation: To get this answer you would first of all 6 more means we're adding.

Quotient means division. What we're dividing is an unknown quantity -- x -- and 3.

The final total says 14. That gives us the following:

6 + x/3 = 14

Enter the area of a square with a diagonal of 18 feet. *Round to the nearest whole*

Answers

Answer:

Since it's passed down on the X chromosome, red-green color blindness is more common in men. This is because: Males have only 1 X chromosome, from their mother. If that X chromosome has the gene for red-green color blindness (instead of a normal X chromosome), they will have red-green color blindness.

Answer: 162

Step-by-step explanation: The formula is 1/2d^2

1/2 = 0.5 18^2 = 324 324 x 0.5 = 162

Rhonda has an extra credit project to make a rectangular prism with the volume of at least 24 in3 . If the area of her base is 6 in2, which inequality would represent all the possible heights, h, of her prism in order to meet her teacher’s requirements?

A h ≥ 4

B. h ≥ 8

C h ≤ 4

D. h ≤ 8

Answers

The answer would be c

Answer:

c

Step-by-step explanation:

Which graph does not represent a function'

Answers

Answer:

D

Step-by-step explanation:

Hey There!

In order for it to be a function the x value cannot repeat

In the last graph the x value repeats multiple times therefore it is not a function

3 over 5 (2^) + 4 x 3 - 2 =

Answers

Answer:

tis equation is invalid..

Step-by-step explanation:

3 over 5 (2^) + 4 x 3 - 2 =

(2^) ??

The top of a ladder rests at a height of 13 feet against the side of a house. If 1 point
the base of the ladder is 5 feet from the house, what is the length of the
ladder? Round to the nearest tenth.

Help please, and help me answer the other ones Ive posted if you can, don’t comments just for points please, I really need help and a explanation m.

Answers

Answer:

Step-by-step explanation:

the Pythagorean Theorem.

A^2 + B^2 = C^2

In this case, A = 13 and B = 5. C = length of ladder.

13^2 + 5 ^2 = c^2

169 + 25 = 194

194 = c^2

square root both sides and you get:

c = 13.9

HELP NOW I BEEN STRESSING OUT​

Answers

Answer:

(0,-3)

Step-by-step explanation:

the y intercept is when x =0

Identify whether the figure is a polygon. If it is a polygon, name it by the number of its sides.

Answers

Answer:

not a polygon

Step-by-step explanation:

The given figure is not a polygon.

What is a polygon?

A polygon is a closed plane figure formed by three or more line segments that meet at points called vertices.

Given is figure,

We know that, a polygon is made up of straight lines connected with each other in a close circuit.

Here, in the figure, there is no polygon, but two polygons joined by a vertex.

Hence, we can say that the given figure is not a polygon.

For more references on polygons, click;

https://brainly.com/question/24464711

#SPJ2

Kim finished a race in 48.47 seconds. This is 9.7 seconds faster than her practice time. What was Kim's practice time? A 38.77 seconds B 47.50 seconds C 49.44 seconds D 58.17 seconds

Answers

Answer:

58.17 seconds

Step-by-step explanation:

48.47 + 9.7 = 58.17

Answer:

38.77 seconds

Step-by-step explanation:

Given that,

Kim finished a race in 48.47 seconds.

This is 9.7 seconds faster than her practice time.

We need to find Kim's practice time.

Finished time =  9.7 + (practice time)

i.e.

Practice time = (Finished time-9.7)

= 48.47 - 9.7

= 38.77 seconds

Hence, the practice time is 38.77 seconds.

What is the answer I need help please

Answers

Answer:

7 rides

Step-by-step explanation:

38 - 10 (entrance fee) = $28 to spend on rides

if it's $4 per ride, we can divide the remaining money ($28) by the cost of each ride ($4)

28 / 4 = 7

Therefore, she can ride 7 rides

7 walks and a ticket

I'm from Mexico

Solve the equation x2 = 36. Write the solution(s) in two forms: as an integer, and with a root
symbol (0)

Answers

Answer:

x = ±6 or [tex]\sqrt{36}[/tex]

you just take the square root of 36 to find one x

What is the approximate distance between the points (-5, 4) and (2, 8)? Round to the
nearest tenth.

Answers

Answer:

Step-by-step explanation:

Factor the following polynomial by determining a greatest common factor 20a^2b-8ab

Answers

Answer:

20a²b-8ab= 4ab(5a -2b)


Martha sells custom painted square canvases. She determined that the amount of tissue paper she'll need to wrap each canvas can be represented by
y= x^2 + 2x + 1, where y is the total square inches of tissue paper and x is the side length of the canvas in inches. Write and solve an equation to determine the side length of the canvas is Martha needs 49 square inches of tissue paper.

Answers

Given:

The equation is

[tex]y=x^2+2x+1[/tex]

where y is the total square inches of tissue paper and x is the side length of the canvas in inches.

To find:

The side length of the canvas is Martha needs 49 square inches of tissue paper.

Solution:

We have,

[tex]y=x^2+2x+1[/tex]

Putting y=49, we get

[tex]49=x^2+2x+1[/tex]

[tex]0=x^2+2x+1-49[/tex]

[tex]0=x^2+2x-48[/tex]

Splitting the middle term, we get

[tex]0=x^2+8x-6x-48[/tex]

[tex]0=x(x+8)-6(x+8)[/tex]

[tex]0=(x+8)(x-6)[/tex]

Using zero product property, we get

[tex]x+8=0[/tex] and [tex]x-6=0[/tex]

[tex]x=-8[/tex] and [tex]x=6[/tex]

Side length cannot be negative. So, only possible value of x is 6.

Therefore, Martha needs 6 inches side length of the canvas for 49 square inches of tissue paper.

#7: Five containers, each weighing the same amount, were placed on a 30-pound

platform. The platform and containers were lifted onto a train car. The maximum weight

that can be lifted by the cable is 780 pounds. Which inequality represents the possible

weight of one container, x, on the platform?

A. x < 130

B. x < 150

C. x < 156

D. x < 162

Answers

Answer:

Option (B)

Step-by-step explanation:

Let the weight of one container = x pounds

Therefore, weight of 5 containers = 5x pounds

Weight of the platform = 30 pounds

Total weight of the platform and containers = (5x + 30) pounds

If the maximum weight that can be lifted by the cable = 780 pounds

Inequality representing this situation will be,

(5x + 30) < 780

5x < 780 - 30

5x < 750

x < 150

Therefore, Option (B) is the answer.

40
30
Total Cost ($)
20
10
+
o
2 4 6 8
Games
Slope:
Meaning of slope:
Y-intercept:
funtction

Answers

Answer : 70

Step-by-step explanation: because  40 +30 and the biggest number in the chart  is 7 just add a 0 and it becomes 70

A group of friends goes out to dinner. The total bill, without tax, is $63. If tax on the meal is 6% and if an 18% tip is left on the $63 total billwhat is the total amount paid?

Answers

Answer: $78.12

Step-by-step explanation:

First find the tip to be paid on the pretax amount:

= 63 * 18%

= $11.34

Then find the tax to be paid:

= 63 * 6%

= $3.78

Add the tip and the tax to the pretax bill:

= 63 + 11.34 + 3.78

= $78.12

PLZZZZZZZZZZZZZZZZZZZZZ:( PLZZZZZZZZ

Answers

Answer:

12.57

Step-by-step explanation:

The answer is 12.57 pls mark Brainliest

Salary: $59,438
Starting age: 24
Ending age: 67

Answers

Answer:

2.6 million

have a good day!

If (44)x = 432, what is the value of xIf (44)x = 432, what is the value of x?

4
7
8
28

Answers

Answer:

x = 8

Step-by-step explanation:

44x = 432

divide both sides by 44

[tex]\frac{44x}{44} = \frac{432}{44}[/tex]

x = 9.8

since 8 is the closest number, that would be your answer

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