how many solutions does the system of equations have?(1 point)
3x=-12y+15 and x+4y=5
A-one
B-two
C-infinitely many
D-none

Answers

Answer 1

Answer:

c

Step-by-step explanation:

First, I'll isolate the x in x+4y=5 to match with the other equation.

The new equation would be x= -4y+5

Next, we will multiply one equation by 3 and the other by -1 for both to match with the other.

-1(-12y + 15 = 3x )

3(-4y + 5 = x)

The new equations would be :

12y - 15 = -3x

-12y + 15 = 3x

Add the equations and you get

0 = 0

The equation has an infinite amount of solutions


Related Questions

ashley is baking a cake shaped as a right triangle. Two of the angles are measurement of 5x and 10x. What is the value of x?

Answers

Answer:

A. 6

Step-by-step explanation:

Since, cake is of right triangled shape, so measure of its one angle would be 90° and the sum of the measures of the remaining two angles will also be equal 90°.

Therefore,

5x +10x = 90

15x = 90

x = 90/15

x = 6

the answer is 6 or a hope it helps

Does the graph below show a proportional
relationship? Why or why not?

Answers

Answer:

No! This graph is non-linear therefore not proportional.

Step-by-step explanation:

Hope this helps!

~Pumpkin

You might need: Calculator
The following data points represent the volume of gas in each race car driver's tank (in liters).
4, 5, 13, ?
If the mean of the data set is 7 L. find the missing volume of gas.
L
Show Calculator
Stuck? Watch a video or use a hint.
Report roben

Answers

Answer:

The missing value is 6!

Step-by-Step Explanation:

First, we know that there are 4 values in total, so we must multiply the mean, 7, by 4 to get the total sum of all the values. (7*4=28)

Now, we can write this as a function, where we can represent the missing value as 'x'.

[tex]4+5+13+x=28[/tex]

In order to get the missing value, we must solve the equation.

Step 1: Simplify.

[tex]4+5+13+x=28\\22+x=28[/tex]

Step 2: Subtract 22 from both sides.

[tex]22+x=28\\22+x-22=28-22\\x=6[/tex]

x is equal to 6, which means the missing volume of gas is 6!

I am stuck on this question please help me:)

Answers

Answer:

Step-by-step explanation:

the answer is 270

hope this helps

Answer:

c 270

Step-by-step explanation:

it just flips around the center

Oak Street and Elm Street run parallel to each other. When Main Street
intersects them, it forms interior 26, measuring 70°. What is the measure of
24?

Answers

Answer:

110°

Step-by-step explanation:

The consecutive interior angles theorem states that when two parallel lines are cut by a transversal, the pair of angles formed which lie inside the parallel lines  on the same side of the transversal are known as consecutive interior angles. This consecutive interior angles are supplementary (that is add up to 180°).

Therefore:

∠4 and ∠6 are consecutive interior angles. Hence:

∠4 + ∠6 = 180° (sum of co-interior angles)

∠4 + 70 = 180

∠4 = 180 - 70

∠4 = 110°

Answer:

110°

Step-by-step explanation:

a p e x

Which expression is equivalent to 5/6c + 76c, if c+ 0?

Answers

Answer:

0

Step-by-step explanation:

If c=0

that expression also equals 0

What is the surface area of the cylinder with height 8ft and radius 5ft ? Round your answer to the nearest thousandth.​

Answers

Answer:

answer:A=408.41ft2 ur welcome

Step-by-step explanation:

2n -1 | 18
n?
please fast!

Answers

Answer:

Step-by-step explanation:

2n-1=18n

18n-2n=16m

-1/16=16n

So what is the answer to this question

Answers

Plug in -10 for x
|-10+4| = |-6| = 6
The answer is 6

Answer:

-6

Step-by-step explanation:

SOMEONE PLS HELP THIS IS DUE SOON

Answers

Answer:

8.5

Step-by-step explanation:

since it is the same as ABC, 2x-1=16

add the 1 to both sides which gives you 2x=17

then divide each side by 2 which gives you x=8.5

now go submit!

Classify this triangle by its sides and angles.
-obtuse and isosceles-
-right and isosceles-
-obtuse and scalene-
right and scalene-

Answers

Answer:

Right and isosceles

Step-by-step explanation:

Classification by sides: Isosceles  because two sides are equal.

Classification by angles : Right angled triangle  because one angle is 90°.

Answer:

Right and Isosceles i think

Step-by-step explanation:

Because there is a right angle and there is 2 equal sides

what is 14=4xb+3
-------------------------------

Answers

Answer:

Step-by-step explanation:

Evaluate |-15| - |-9|

Answers

Answer:

6

Step-by-step explanation:

|-15| - |-9|

15 - 9 = 6

The expression is an illustration of absolute values and signs.

The result of evaluating |-15| - |-9| is 6

Given

[tex]|-15| - |-9|[/tex]

Remove absolute brackets

[tex]|-15| - |-9| = 15 - 9[/tex]

Evaluate the expression 15 - 9

[tex]|-15| - |-9| = 6[/tex]

Hence, the evaluation of |-15| - |-9| is 6

Read more about absolute values at:

https://brainly.com/question/1301718

(7v - 9) - (6v + 9) plz help me

Answers

Answer:

v - 18 i THINK

Step-by-step explanation:

can someone help simplify the following expression. 7t -3t + 4
A 4t + 4
B 7t - 1
D 10t + 4
C10 + 4

Answers

The answer is b I did this before

Onny wants to buy a guitar that costs $600. He makes $2 per day. How many days will it take Onny to save enough money to buy the guitar? HELP PLS DIS DUE TODAY

Answers

Answer:

300 days of work.

Step-by-step explanation:

He needs to work for 300 days for 2 dollars a day to get 600 dollars:

300 x 2 = 600

Answer:

Onny will have to save for 300 days or 9 months And 3 weeks

Does the following table represent a FUNCTION?
X
y
-6
13
-4
18
-2
25
0
34
2
45
4
58

Answers

Answer:

19239 847463626161615 u 12234432485757

Step-by-step explanation:

por eso es 25

SUPER EASY MATH! Help plz! Will give Brainliest! What is C?

Answers

Answer:

C = 35

Step-by-step explanation:

Column 2 = Column 1 * Column 3

C = 5*7 = 35D = 10*7 = 70
35!! C equals thirty five.

Jasmine is taking out a small business loan for her floral shop. She plans to apply for a $30,000 loan with a 5-year term and a 3.75% interest rate. She is unsure of her expected monthly profits, so she wants to know the benefit of a smaller loan. Using the loan amortization formula, how much money would Jasmine save over the life of the loan if she were to borrow $10,000 less?

Answers

Answer:

Monthly pay = int. rate / 12 months * cost of car after downpayment / (1-(1+ int. rate/12 months)^( - term length of loan )

Step-by-step explanation:

Just plug in your numbers:

M = 0.0375/12 * 30000/(1-(1+.0375/12)^60)

since 5 years is 60 months

IF U GOOD AT MATH PLSS HELP?? Algebra II

Answers

Answer:

The answer is B

This is the answer

Please help help help!!!

A parabola has vertex (4,3).If one x-intercept is 1, find the other x-intercept.ASAP!!!!!

Answers

Step-by-step explanation:

The x-intercept(s) of a quadratic function are equidistant from the vertex. (if any x-intercept exists)

The vertex has x-value 4. Since one of the x-intercepts is 1, the other must be 7.

(7 - 4 = 3, 4 - 1 = 3)

Teresa is going with her family to watch

professional barrel racers. Her family

buys 6 tickets. They have a coupon for

$1.50 off each ticket. They pay $52.50

altogether for their tickets. Write an

equation that you could use to represent

the situation. What is the price of a ticket

before using the coupon?

Answers

Answer:

6 * (x - 1.50) = 52.50 ; 10.25

Step-by-step explanation:

Given that :

Number of tickets purchased = 6

Coupon off per ticket = 1.50

Total Amount paid for tickets = $52.50

Let x = initial price of ticket :

Number of tickets purchased * (Initial ticket price - coupon) = total amount paid

6 * (x - 1.50) = 52.50

6x - 9 = 52.50

6x = 52.50 + 9

6x = 61.50

x = 61.50 / 6

x = 10.25

Hence, initial price of ticket = $10.25

pls help i need it badly ​

Answers

Answer:

Area=42.25 square inches

if a cube, total area=253.5 square inches

Step-by-step explanation:

Area= (side)(side)

Area=6.5"x6.5"=42.25 in^2

if a cube (6 sides)

42.25X6=253.5in^2

John's family visited his grandmother over the weekend. the drive to her house was 2 hours at their usual speed. the trip back took 15 min longer because traffic was bad and they had to drive 5 mph slower. how many miles away is Johns's grandmother's house?

Answers

The distance to Johns's grandmother's house is 90 miles.

Speed

Speed is the ratio of total distance to total time taken, it is given by:

Speed = distance / time

Let x represent the speed that John used and d represent the distance, hence:

x = d/2

Also when taken 15 minute longer (0.25 hours):

x - 5 = d/(2 + 0.25)

x = d/2.25 + 5

Equating:

d/2 = d/2.25 + 5

d = 90 miles

The distance to Johns's grandmother's house is 90 miles.

Find out more on speed at: https://brainly.com/question/4931057

Answer:

The distance to Johns's grandmother's house is 90 miles.

Speed

Speed is the ratio of total distance to total time taken, it is given by:

Speed = distance / time

Let x represent the speed that John used and d represent the distance, hence:

x = d/2

Also when taken 15 minute longer (0.25 hours):

x - 5 = d/(2 + 0.25)

x = d/2.25 + 5

Equating:

d/2 = d/2.25 + 5

d = 90 miles

The distance to Johns's grandmother's house is 90 miles.

pls help I need it badly ​

Answers

Answer:

3.6

Step-by-step explanation:

(HELP PLS) A triangle has the coordinates
A(4, -1), B(3,-3), and C(0, 2).
Reflect the triangle over the y-axis and find the coordinates of its image.
A(4, -1) - AC
B(3,-3) - B'(
C(0,2) - C'

Answers

A(-4, -1)
B(-3, -3)
C(0, 2)

Find an example of a function relation in your everyday activity. State the input and output and rate of change.

Answers

Answer:

gogleeee

Step-by-step explanation:

I think it would be something like selling Candy bars you could go to the store and buy candy bars and then sell them the way I see it is that you rely on the candy bars so you can make money from selling them I’m sorry if this doesn’t make sense to you I was never really good at explaining things and I’m still new to Brainly

Point S lies between points R and T on Line segment R T. A line contains points R, S, T. The space between R and S is 2 x. The space between S and T is 3 x. If RT is 10 centimeters long, what is ST? 2 centimeters 4 centimeters 6 centimeters 8 centimeters

Answers

Answer:

6 cm

Step-by-step explanation:

Given that:

A line that contains the points R, S and T.

Distance between R and S = [tex]2x[/tex]

Distance between S and T = [tex]3x[/tex]

To find:

The distance between S and T = ?

Solution:

The given situation and dimensions can be represented in the form of a diagram as shown in the attached diagram.

As per given statement and in the diagram, we can deduce that the sum of distance between R and S, S and T is equal to distance between R and T.

i.e. RS + ST = RT

[tex]2x + 3x = 10\\\Rightarrow 5x=10\\\Rightarrow x = 2[/tex]

ST = 3[tex]x[/tex] = 3 [tex]\times[/tex] 2 = 6 cm

Therefore, the answer is:

Distance between S and T is 6 cm.

If the space between R and S is 2x, the space between S and T is 3x, and RT is 10 centimeters long, then ST is 6 centimeters

Point S lies between points R and T on Line segment RT

RT   =  RS   +  ST

The space between R and S is 2x

That is, RS  =  2x

The space between S and T is 3x

That is, ST  =  3x

RT is 10 centimeters long

RT  =  10cm

Substitute RT = 10, ST = 3x and RS = 2x into the equation RT = RS + ST

10  =  2x  +  3x

10   =  5x

x  =  10/5

x   =  2

If x = 2, then

ST  =  3x

ST = 3(2)

ST =  6 centimeters

Learn more here: https://brainly.com/question/20418953

21x-3+20x+3=180
Solve for x

Answers

Answer:

x=4.39024390244

Step-by-step explanation:

21x-3+20x+3=180

group up like terms

41x+0=180

41x=180

/41    /41

x=4.39024390244

simplify if needed

fraction form: 180/41

1.Who is the youngest child?2.Who is the eldest child?
3.Whois older, Bianca or Dianne?
4.What is the reletionship of Mae's age to Reys age?
5.List down all the math keywords you have seen on the problem?​

Answers

Answer:

Where's the story???

Step-by-step explanation:

Can you please report it so that we can help you?!

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