Please anybody help please

Please Anybody Help Please

Answers

Answer 1

Answer:

x= -3 and y = 6

Step-by-step explanation:

so basically what you are trying to do is reduce into finding x and y

what you do is you want to find a number to multiply one of the equations in order to get the same x or y value does not matter which

so,...

we can do

either 20x or 15y

we will go with the smallest 15y

so for both equations multiply the whole thing by 5 for the first equation and by 3 for the second

5 x 5x+3y=3 --> 1

3 x 4x+5y=18 --> 2

we then get

25x+15y = 15 -->1

12x + 15y = 54 -->2

then now that you have the same Y values you can subtract ! which cancels out both the 15y

25x+15y = 15 -->1

- 12x + 15y = 54 -->2

13x =-39

so now x=-3 and all you have to do with x = -3 is sub this into either one of the equations that you started with  !

x = -3

5(-3) +3y =3

-15 + 3y = 3

3y = 3+15

3y=18

y = 6!


Related Questions

write an equation for the line above

Answers

Answer:

y= -3x/5

Step-by-step explanation:

y=mx+b where m is the slope and b is the y-intercept

m= rise/run = -3/5 (go from one point to the other on the graph)

y-intercept is (0,0)

Marching Bands: In how many ways can four marching bands and three floats line up for a paradeif two bands cannot march next to one another?

Answers

Answer:

There's 6 ways the boats can line up for the parade.

Step-by-step explanation:

Feel free to give brainliest.

Have an outstanding day!

A box contains 300 raffle tickets. Only 15 tickets are winning tickets. What is the
probability the first ticket drawn at random from the box is a winning ticket?

Answers

Answer:

5%

Step-by-step explanation:

15/300 = 0.05

5%

when a number i added to its square , the result is 6 what is the number

Answers

Answer:

2

Step-by-step explanation:

2 ² is 4. If you add 2 to 4, you get 6. Therefore, the answer is 2.

Solving using factorization method, the unknown number is either -3 or 2.

What is a square of a number?

The square of a number is the product win a number is multiplied by itself.

Let the unknown number be a.

Square of a = a × a

The number is added to its square:

[tex]a + a^{2}= 6[/tex]

[tex]a^{2} \: + a - 6 = 0[/tex]

solving by factorization:

a = -3 or 2

Therefore, the unknown number is either -3 or 2.

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Which is the correct decimal representation of 13/40

Answers

Answer:

.325

Step-by-step explanation:

Answer:

0.325 is a decimal

Step-by-step explanation:

In the equation y = 2π^x, 2 is the ______ and π is the ______.

Answers

Answer:

pi(π) is the constant and x is the variable since pi is a numerical value and x can change according to the equation given.

Step-by-step explanation:

NEED HELP ASAP. WILL GIVE BRAINLIEST

Which statement describes the equivalent vectors?

The magnitudes are 10, and the direction angles are about 18º

The magnitudes are 10, and the direction angles are about 162°

The magnitudes are 100, and the direction angles are about 18°

The magnitudes are 100, and the direction angles are about 162º.​

Answers

Answer:

A) The magnitudes are 10, and the direction angles are about 18º

Step-by-step explanation:

got it right on edge :)

The statement describes the equivalent vector is A) The magnitudes are 10, and the direction angles are about 18º.

How to find the cross product of two vectors?

Suppose that two vectors in consideration are u and v, then their cross product is evaluated as:

[tex]u \times v = |u|.|v|.sin(\theta)\hat{n}[/tex]

where

the normal unit vector whose direction is decided by right hand thumb rule, and theta is the angle between u and v vector.

The two bars around a vector represents the magnitude of that vector.

Cross product returns the result as a vector itself.

From the given graph we can conclude that the magnitudes are 10, and the direction angles are about 18º.

The statement describes the equivalent vector is A) The magnitudes are 10, and the direction angles are about 18º.

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Help!!!
Find the total cost to the nearest cent. $18 breakfast; 7% tax

Answers

Answer:

19.26

Step-by-step explanation:

please help me asap​

Answers

Answer:

1\2.

Step-by-step explanation:

change in y over change in x. so 13 - 11 over 6 - 2. 2/4 --.> 1\2.

Solve for x: x+ 1/6 = 5/12

Answers

Answer:

x=3/12 or 1/4

Step-by-step explanation:

x + 1/6 = 5/12

x + 2/12 = 5/12

x = 3/12

converts to 1/4

Answer:

x= 1/4

Step-by-step explanation:

5/12- 1/6 = 1/4

HELP!!BRAINLIEST AND 10 POINTS !! <3 ALSO THIS SAYS -X SO PLEASE HELP WITH THAT !! THANK YOU

Answers

I think it’s -3,1 I’m not sure though!

Justin and his children went into a grocery store and he bought $18 worth of bananas and mangos. Each banana costs $0.60 and each mango costs $1.50. He bought 2 more bananas than mangos. Graphically solve a system of equations to determine the number of bananas, x, and the number of mangos, y, that Justin bought.

Write an answer in y=mx+b form, please.
Two equations.

Answers

Answer:

x=10 and y= 8.

Step-by-step explanation:

Given that the cost of 1 banana = $0.60

Cost of 1 mango = $1.50.

Total cost= $ 18  

Here, x be the number of bananas and y be the numbers of mangos,

As the number of bananas is 2 more than the number of mangos,

So, x=y+2

[tex]\Rightarrow y=x-2 \cdots(i)[/tex]

Cost of x bananas [tex]=\$ 0.60 \times x[/tex]

Cost of y mangos [tex]=\$ 1.50 \times y[/tex]

Total cost = 0.6x+1.5y

[tex]\Rightarrow 18 = 0.6x+1.5y\\\\\Rightarrow 1.5y=18-0.6x\\\\\Rightarrow y= 12 - 0.4 x \cdots(ii).[/tex]

Solving both the equations (i) as well as (ii), graphically as shown in the figure by plotting both the graphs.

Both the graphs intersect at the point (10,8) as shown in the graph.

So, the solution of both the equations is, (x,y)=(10,8). i.e

The number of bananas = x= 10 and

the number of mangos = y = 8.

Jeremy find the cost by adding the percents. 25% off of $60 is equal to 15% off of $60, then subtracting 10% from that cost is equal to . The two total costs are

Answers

Answer:

a. 25% off of $60 is equal to $45.

b. 15% off of $60, then subtracting 10% from that cost is equal to $45.

c. The two total costs are $45 and $45, and their addition is equal to $90 (i.e. $45 + $45 = $90).

Step-by-step explanation:

These can be determined as follows:

a. Calculation of the first total cost, i.e. 25% off of $60

25% of 60 = 25% * $60 = 15

First total cost = 25% off of $60 = $60 - (25% of $60) = $60 - $15 = $45

Therefore, 25% off of $60 is equal to $45.

b. Calculation of the second total cost, i.e. 15% off of $60, then subtracting 10% from that cost

15% of $60 = $9

10% of $60 = $6

Cost = 15% off of $60 = $60 - (15% of $60) = $60 - $9 = $51

Second total cost = Cost - (10% of $60) = $51 - $6 = $45

Therefore, 15% off of $60, then subtracting 10% from that cost is equal to $45.

c. The two total costs

The two total costs are 25% off of $60 which is equal to $45 and 15% off of $60, then subtracting 10% from that cost which is also equal to $45. The addition of the two costs is $90 (i.e. $45 + $45 = $90).

Therefore, the two total costs are $45 and $45, and their addition is equal to $90 (i.e. $45 + $45 = $90).

What are some reasons to live I could use them right now

Answers

Answer:

mom will be sad

Step-by-step explanation:

YOU ARE A BEATIFUL AND AMAZING PERSON DONT DIE ON ME LIKE THIS

Mike had 180 blue and red pencils. He had 45 blue. What percentage of his pencils are red.

Answers

Answer:

First divide 180 by 45, 180/45=4. So 25% of his pencils are blue, which means 75% of his pencils are red.

The percentage of red pencils Mike had is 75%.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, Mike had 180 blue and red pencils and 45 were blue.

So, The number of red pencils is,

= (180 - 45).

= 135.

Therefore, The percentage of red pencils is,

= (135/180)×100%.

= 75%.

Some other concept related to percentage is percentage change,  

The net amount change will now be divided by the original sum and multiplied by 100%, giving us the percentage change, which is,

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Solve the formula for the specified variable.

f=m+n+p/2
pls hurry I need help
ill give brainliest

Answers

Answer:Given equation as

x-2/2=m+n

1) x=2(m+n)+2

2)h=2A/b

3) 23

4)-81

5) 17/7

6) 8

7) 4 hours

8) width is 4.5 length is 7.5

9)  got wrong didn't answer

10)  got wrong picked never true

11) two points I only got 1 I picked you overdrew on the account by 36.00 so I guess the other is the acount has a balance less than

Step-by-step explanation:

In this we have to isolate x. So for this firstly we will multiply both side of equation by 2.

Now we can add 2 in both side

I love you. You are worth it.

Answers

Answer:

Thanks

Step-by-step explanation:

Can someone pretty please help me and answer these questions??!?!!!?

Answers

Answer:

Step-by-step explanation:

you seee i would nut I need points right now I'm sorry

Determine and state an equation of the line perpendicular to the line 4x – 5y = 10 and passing through the point (-4, -2).

Answers

fortnite stroyline haja
Answer is 5x+4y+27=0

Joseph deposits $950 every month into an account earning a monthly interest rate of 0.5%. How much would he have in the account after 19 months, to the nearest dollar?

Answers

Answer:

I think, 18,058 dollars.

Step-by-step explanation:

A grocery store clerk can scan 1 product every
1/2
of a second. At what rate can she scan products?

Answers

She can scan 2 products per second

The height reached by a model rocket can be calculated using the equation h= -16t2 + vt +
where t is the time the rocket is in flight, vis the rocket's velocity, and n is the rocket's beginning
height.
Calculate the height, h at 3 seconds given that the rocket travels 85 feet per second and starts on a
launch pad 15 feet off the ground.
Knowns:
t = 3 seconds
v = 85 feet per second
n = 15 feet
If we plug all those values in, our Formula becomes h= (–16.32) + (85.3) + (15).
Solve for h

Answers

Answer:

Step-by-step explanation:

9.0

The height (h) reached by model rocket will be equal to 126 ft.

It is given that the height reached by a model rocket can be calculated using the equation h = - 16 [tex]t^{2}[/tex] + ( v × t ) + n

We have to calculate the height (h) at 3 seconds.

What is algebra ?

Algebra is the branch of mathematics that deals with various symbols and the arithmetic operations such as multiplication , division , etc.

As per the question ;

h = - 16 [tex]t^{2}[/tex] + ( v × t ) + n   ---------- Equation 1

t = time rocket is in flight = 3 seconds

  v = velocity at which rocket travels = 85 ft. per second

  n = height of rocket at beginning = 15 ft

Putting these values in equation 1 , we get.

h = - 16 × ( 3² ) + (85) × (3) + 15

h = - 16 × 9 + 255 + 15

h = -144 + 270

h = 126 ft.

Thus , the height (h) reached by model rocket will be equal to 126 ft.

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The product of the ages of two adults is 572. Find their ages.

Answers

Answer:

?

Step-by-step explanation:

If you divide 572 by 2 you get 286...

Answer:286

Step-by-step explanation: thats a real big number but half of 572 is 286 and you can figure that out by diving by 2

Slope intercept form
WILL MARK BRAINLIST

Answers

answer : y= -10/1 x - 30

Guys, I need help ASAP!!
The standard deviation of the following data set is 0.31. 95% of the data would fall in which range?
4.3, 5.1, 3.9, 4.5, 4.4, 4.9, 5.0, 4.7, 4.1, 4.6, 4.4, 4.3, 4.8, 4.4, 4.2, 4.5, 4.4
Pr (3.88 ≤ X ≤ 5.12)
Pr (2.67 ≤ X ≤ 5.33)
Pr (4.19 ≤ X ≤ 4.81)
Pr (3.57 ≤ X ≤ 5.43)

Answers

Answer:

Step-by-step explanation:

Answer is "B"

what number should be added to both sides of the equation to complete the square?

Answers

-4 is what you put on both sides Bc it’s half of b

Evaluate the expression below if x = -2, y=3, and z= -4
8xy

Answers

Answer:64

Step-by-step explanation:8(-2)(-4)

64

In a survey of 1,500 people who owned a certain type of​ car, 300 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car?

Answers

Answer:

20%

Step-by-step explanation:

Step one:

total number of people surveyed= 1500

we are told that 300 people would buy that car again,

this implies that they like the car and are satisfied with it

Step two:

the percent of people satisfied can be computed as

=300/1500*100

=3/15*100

=1/5*100

=0.2*100

=20%

The people surveyed were satisfied with the​ car are 20%

can someone help me with these questions I want to make sure I got them right ​

Answers

9514 1404 393

Answer:

14/9-3.65/411/2, 7/8, 5/18

Step-by-step explanation:

1. n = (11/6 -2/3)(4/3) = (7/6)(4/3) = 14/9

__

2. x = (9.82 -28.18)/5.1 = -3.6

__

3. y = 3/2 -1/4 = 5/4

__

4a. t = 2(3 -1/4) = 11/2

4b. y = (1/5 +1/2)(5/4) = ((2+5)/10)(5/4) = 7/8

4c. x = (11/3 -2)/6 = (5/3)(1/6) = 5/18

The radius of a circle is 8 in. Find its area in terms of \piπ.

Answers

Answer:

201.06 in

Step-by-step explanation:

I'm guessing you meant πr² because that's what you use to find the area of a circle.

Anyways, we know what the radius is, it's 8, so now we just need to plug it in.

π8² = 201.06

or you can do

3.14(8²) = 200.96

Using π just makes it more exact.

Answer:

201.1 in (approx.)

Explanation:

ok x so first I will multiply 8^2 by pi, that gives me an infinite decimal.. but after rounding it up to 1d.p, we get 201.1 inches which is your answer

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