how do you know how many solutions are possible for a system of equations

Answers

Answer 1

Answer:

Step-by-step explanation:

If the slopes are the same but the y-intercepts are different, the system has no solution.

If the slopes are different, the system has one solution.

If the slopes are the same and the y-intercepts are the same, the system has infinitely many solutions.

Answer 2

Answer:

Step-by-step explanation:

If you mean linear systems. If lines have a different slope there will be one solution. If they have the same slope (parallel) and a different y intercept there are zero solutions. If they have same slope and y intercept than they are the same line and have an infinite number of solutions.


Related Questions

5. Which equation will solve the following word problem? The professor has 390 books that he wants to display in his office. Each shelf can hold 65 books. How many shelves will he need?


A)390s = 65


b)390(65) = s


c)s/390 = 65


d)390 = 65s

Answers

Answer:

[tex]65s = 390[/tex]

Step-by-step explanation:

Given

[tex]Books = 390[/tex]

[tex]Shelf = 65[/tex]

Required

Write an expression for the scenario

1 shelf can hold 65 books.

s shelves can hold 65s books.

So:

[tex]s\ shelves - 390[/tex]

Substitute 390 for s shelf

[tex]65s = 390[/tex]

Choose a random number between 1 and 25. What is the probability that it is an even number

Answers

Answer:

6/25

Step-by-step explanation:

its a probability  out of all the odd numbers such as 1,3,5,7,9,11,13,15,17,19,21,23,25

1. Sen 495° debo o sea evaluarlas las funciones trigonométricas para ángulos que no se encuentra en círculos unitarios y me pide explicar y desmontar ​

Answers

Answer:

which language is this???

Please help! Thank you!

Answers

Answer:

here are some websites you can use:

mathpapa .com

desmos .com (scientific calculator)

calculatorsoup .com

A 13.5 m fire truck ladder is leaning against a wall.
Find the distance the ladder goes up the wall if it
makes an angle of 43.8° with the ground.

Answers

To solve this problem you must apply the proccedure shown below:

1. You have the the 13.5​-m fire truck ladder is leaning against a wall and the ladder makes an angle of 39 degrees 45 ' with the horizontal.

2. Then you have:

39 degrees 45'=39.75°

Sin(39.75°)=d/13.5

d=13.5xSin(39.75°)

d=8.63

A. because if it is leaning against the wall you’ll find the distance of the ladder which will make an angle of 43.8°

-4x - 9 = 19

Find x please! (Please explain how you did it too)​

Answers

Answer:

x= - 7

Step-by-step explanation:

-4x= 28

x=28/-4

Kate had $140. She spent
2/5 of it. What amount did she spend?

Answers

2/5*140
= 56
So Kate spent $56

The amount Kate spent $ 56 of the $ 140 she had.

To find out how much Kate spent, we need to calculate 2 / 5 of the total amount she had, which was $ 140.By multiplying fractions we mean the product of a fraction with another number or a fraction. The product of such multiplication could be a fraction or a whole.

To do this, we can multiply $ 140 by the fraction 2 / 5:

= $ 140 * 2 / 5

= $280 / 5

= $ 56

Therefore, Kate spent $ 56 of the $ 140 she had.

To know more about amount  click here :

https://brainly.com/question/13540705

#SPJ2

Draw a model that shows 3 items being divided equally for 4 people. How much will each person have?

Answers

Answer:

Each person will get 3 pieces

Step-by-step explanation:

First you separate each item in 4 pieces. Then you get 12 pieces. Since 12 divided with 4 is 3, the answer is 3.

We want to draw a model that shows 3 items being divided equally for 4 people, we will see that each person receives 0.75 of an item.

Drawing the model.

Here you just need to create an area that represents 3 elements, then replicate that area but this time with 4 sections, so we can see how much each of the 4 sections takes from the 3 elements.

The model can be seen below. (this is just an example, you should do it with a ruler to have a proper model).

Now to see how much each person haves we just take the quotient:

3/4 = 0.75

Each person receives 0.75 of an item.

If you want to learn more about divisions, you can read:

https://brainly.com/question/7068223

GIVING ALOT OF BRAINS FAST!

Brendon is building a clubhouse where 11 inch on the plans is equivalent to 88 inches on the actual clubhouse.




If the clubhouse is to be 160 inches wide, what will the width be on the plans?




Round answer to the nearest hundredth if necessary.

Answers

20

160/8=20

88/8=11

i hope this one helps !!

Answer:

20,020 in. on the plans

Step-by-step explanation:

To get from 11 in. to 88 in. (from plans to real life), you multiply by 8.

Therefore, to get from 160,160 to ?? (from real-life to plans), you would divide by 8.

160,160 / 8 = 20,020

To check, you can multiply 20,020 by 8 to go from plans to real-life measurements; 20,020 • 8 = 160,160)

The Rodriguez
family is on a
vacation. They
started with $1,875.
They have spent
$140 each day and
have $895 left for the
rest of their vacation.
Write and solve an
equation to find how
many days have they
been on their
vacation already?

Answers

1,875 - 895 = 980 dollars they spent. 980 divided by 140 equals 7. They have been on their vacation for 7 days.

g(x)=-7x+6. Solve g(x)=-17

Answers

Answer:

23/7

Step-by-step explanation:

-7x+6=-17

-7x=-17-6

-7x=-23

7x=23

x=23/7

130 3x + 67 degrees
please please please please please please please help​

Answers

Answer:

x=21

Step-by-step explanation:

Since the angle is the same size it is equal to 130 degrees.

subtract 67 from both sides and then dived by 3x and that gets you x=21

A poker hand consists of 5 cards. If the cards have distinct consecutive values and are not all of the same suit, we say that the hand is a straight. For instance, a hand consisting of the five of spades, six of spades, seven of spades, eight of spades, and nine of hearts is a straight. What is the probability that one is dealt a straight

Answers

Answer:

The answer is blah blah blah blah

Find the number that makes the ratio equivalent to 11:1.
?:4

Answers

Answer:

The unknown is 44

Step-by-step explanation:

We need to solve for x in the proportion given by :

11 / 1 = x / 4

multiply both sides by 4 to isolate x

11 * 4 / 1 = x

x = 44

Help please and thank you ❤

Answers

Answer:

In the pictures below

Step-by-step explanation:

The radius of a circle is 9.6 in. Find the circumference to the nearest tenth.

Answers

Answer:

19.2

Step-by-step explanation:

9.6*2=19.2

An employee at a company that assembles chandeliers is packing boxes for shipping. In the first box, he packed 5 small chandeliers and 3 large chandeliers, which weighed a total of 308 pounds. In the second box, he packed 5 small chandeliers and 5 large chandeliers, which had a weight of 430 pounds. Assuming the weight of the box isn't included in the shipping weight, how much does each size of chandelier weigh?

Answers

Small chandelier be xlarge chandelier be y5x+3y=308--(1)5x+5y=430--(2)

Subtracting eq(2) from eq(1)

[tex]\\ \tt\hookrightarrow -2y=-122[/tex]

[tex]\\ \tt\hookrightarrow y=61[/tex]

Put in eq(1)

[tex]\\ \tt\hookrightarrow 5x+3(61)=308[/tex]

[tex]\\ \tt\hookrightarrow 5x+183=308[/tex]

[tex]\\ \tt\hookrightarrow 5x=308-183[/tex]

[tex]\\ \tt\hookrightarrow 5x=125[/tex]

[tex]\\ \tt\hookrightarrow x=25[/tex]

Zoey's dog has a water bowl with a diameter of 6 inches. Sam's
dog has a water bowl with a diameter of 10 inches. What is the
approximate difference in the circumference (distance around)
ut of the two water bowls?

Answers

Answer:

12.56 inches

Step-by-step explanation:

Circumference: C = 2*pi*r

I will be using 3.14 in place of pi

Divide the diameters by 2, so 3 for Zoey and 5 for Sam

Multiply (2*3.14*3) and (2*3.14*5)

For Zoey you get 18.84 and for Sam you get 31.4

31.4-18.84= 12.56 in difference

PLEASE HELP I WILL MAKE YOU BRAINLIEST!!!!! A rectangular prism has a volume of 198 cm³. A rectangular pyramid has the same height as the rectangular prism and a base that is congruent to the base of the rectangular prism.

What is the relationship between the volume of the rectangular prism and the rectangular pyramid?


(A) The volume of a rectangular pyramid is 2 times the volume of a rectangular prism. The volume of the rectangular pyramid is 396 cm3.

(B) The volume of a rectangular pyramid is 13 the volume of a rectangular prism. The volume of the rectangular pyramid is 66 cm3.

(C) The volume of a rectangular pyramid is 3 times the volume of a rectangular prism. The volume of the rectangular pyramid is 594 cm3.

(D) The volume of a rectangular pyramid is 12 the volume of a rectangular prism. The volume of the rectangular pyramid is 99 cm3.

Answers

Answer:

(B) The volume of a rectangular pyramid is 1/3 the volume of a rectangular prism. The volume of the rectangular pyramid is 66 cm3.

Step-by-step explanation:

Volume of a rectangular prism:

The volume of a rectangular prism is given by:

[tex]V_R = A_{b}*h[/tex]

In which [tex]A_b[/tex] is the base area and h is the height.

Volume of a pyramid:

[tex]V_P = \frac{A_{b}*h}{3}[/tex]

Relation:

From this, given the same base and the same height, the volume of the pyramid will be a third of the rectangular prism.

A rectangular prism has a volume of 198 cm³

So the volume of the pyramid is 1/3 of this, that is, 198/3 = 66 cubic centimers.

The correct answer is given by option B.

10/11 x 7/9 x 1/2 help meh!

Answers

Answer:

35/99 or .35 repeating

Step-by-step explanation:

just multiply

Answer:

35/99

Step-by-step explanation:

Multiply and you'll get 35/99 0.35 with a line above 35 which means repeating

How do I solve this question?

Answers

Answer:

The correct answer is given by option a.

Step-by-step explanation:

Rational roots theorem:

In the rational roots theorem, we take the leading coefficient(which multiplies the term of x with the highest exponent) and the independent term(which does not multiply any value of x).

The possible roots have the format p/q, in which p are the factors of the independent term, and q are the factors of the leading coefficient.

In this question:

Leading coefficient: 3

Independent term: 15

Factors of the independent term: {1, 3, 5, 15} -> p

Factors of the leading coefficient: {1,3} -> q

Possible roots:

All possible values, positive or negative, in which p is divided by q. So

[tex]\pm \frac{1}{1}, \pm \frac{1}{3}, \pm \frac{3}{1}, \pm \frac{3}{3}, \pm \frac{5}{1}, \pm \frac{5}{3}, \pm \frac{15}{1}, \pm \frac{15}{3}[/tex]

So, without the repeated terms, they are:

[tex]\pm \frac{1}{3}, \pm \frac{5}{3}, \pm 1, \pm 3, \pm 5, \pm 15[/tex]

The correct answer is given by option a.

PLEASE HELP ME ANSWER The probability that Scott will be late for work is 0.15. In a year Scott works for 240 days. Work out the expected number of days that he will be late......

Answers

Answer:

36 days

Step-by-step explanation:

Given

[tex]p = 0.15[/tex] -- probability of coming late to work

[tex]n = 240[/tex] -- number of days

Required

Determine the expected number of days of coming late (E(x))

This is calculated using:

[tex]E(x) = np[/tex]

[tex]E(x) = 240 * 0.15[/tex]

[tex]E(x) = 36[/tex]

The expected number of days is 36

If x=5 then what is 3x+(2-4x). P.S. standard form

Answers

Answer:

-3

Step-by-step explanation:

3x+(2-4x)

3*5+(2-4*5)

3*5+(2-20)

3*5+(-18)

3*5-18

15-18

-3

3x + 2 - 4x
3x - 4x + 2
-1x + 2
-1(5) + 2

what is the answer to the equation -5+15>-30

Answers

Your answer is going to be -20.

hey!! plz answer this question correctly plz plz plz im on a very tight time crunch thanks besties

Answers

Answer:

b is the answer I choose because it is going in-5

Answer:

B

Step-by-step explanation:

Pleaseeeeeeeee answer if you do your the best at life!!!!!

Answers

x+(-8)= -12

x-8= -12

x= -12+8

x=-4

-3 + x = 10

x=10+3

x=13

-2+x= -5

x=-5+2

x=-3

Answer:

x+(-8)= -12

x-8= -12

x= -12+8

x=-4

-3 + x = 10

x=10+3

x=13

-2+x= -5

x=-5+2

x=-3

Step-by-step explanation:

can someone help me plz?!

Answers

It would be y=-2x-2...I’m pretty sure it is that one.

describe the transformations needed to translate the graph y=1/x to the graph of y=1/x+3 -4

Answers

i cant describe but i put y=1/x+3 -4 on the graph hope this helps

Answer:

to the left 3 and down 4

Step-by-step explanation:



The nth term of a different sequence is 2n2 - 4
Find the 3rd term of this sequence.

Answers

3^2 is 9 9x2 is 18
18-4 is 14
Its 14

What is the y-intercept of the following equation? y=2x+5

Answers

5 because y=mx+c or y=mx+b if your american the c is the y intercept
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