Mathematics High School

Find the value of each variable
X=
Y=

Find The Value Of Each Variable X=Y=

Answers

Answer 1
x equals 7
y equal 7 square root 3

Related Questions

Find the surface area of the figure .

Answers

Answer:

356.4

r =4

h =12

just put it in this formula

2 pie r ( r + h )

GOOD LUCK FOR THE FUTURE! :)

if h (x) = |5x - 17|, find h(3)

Answers

Answer:

2

Step-by-step explanation:

5x - 17

5(3) - 17 = 15 - 17 = -2

let me know if its right or wrong

Simplify the expression (please)

Answers

Answer:

9(v-8)

[line]

v+6

Step-by-step explanation:

the width if a rectangular room is 1 less than twice the length if the perimeter is 196 feet how long is the length

Answers

Answer:

l = 33 feet

Step-by-step explanation:

Let length be l.

Width, b = 2l-1

Perimeter of the room, P = 196

We know that the perimeter of the rectangle is given by :

P = 2(l+b)

196=2(l+2l-1)

98=3l-1

Adding 1 both sides.

98+1=3l-1+1

3l=99

l = 33 feet

So, the length of the room is 33 feet.

7th grade please solve the problem above. Write a paragraph explaining how you found the solution you must include each step for solving please!!! ​

Answers

Answer:

x=0

Step-by-step explanation:

You must isolate the variable to solve for it, so subtracting 14 from the left is the first thing to do. This can be supported by using PEMDAS, whereas we are doing the inverse here to solve for something in the equation. This gives us 2x=0. Next, we have to divide by 2, which gives us x=0.

EXPLAIN when |−x| = x would be true.
HINT: If you are stuck, try substituting each of x = -1, x = 0, and x = 1 into the equation. Then, interpret your results.

Answers

Answer:

It's true when x = a positive number.

Step-by-step explanation:

I don't know how to explain this, so here we go.

The definition of absolute value is the distance a number is away from 0.

In other words, all numbers are now positive or 0.

If |-x| = x, it means x would have to be positive because, well, to prove that, we have to see what it couldn't be a negative number

if x was a negative number (-1), this is what we would get

|-(-1)| = -1

|1| = -1

1 = -1

That's not right!

And this happens in any negative number you do.

Because the absolute value of something cannot be negative

I cannot stress that enough

Since it is the absolute value of -x, x has to be positive, if it isn't, then there is no solution for x.

Any number greater than or equal to zero is a possible answer for the absolute value of something, but the absolute value of something cannot be a negative number

I hope this helps, let me know if you have any questions.

You use it when dealing with absolute value. Those lines around the x represent absolute value. AV essentially means that whatever is in the lines equals that number, but positive. AV by definition means the distance from 0.

So, 7 and -7 are both 7 (absolute value) from 0.

Hope that helps!

Dion ran 3.75 kilometers each day to prepare for a race. What was the number of kilometers that Dion ran during 28 days?

Answers

Answer:

Dion ran 105 kilometers in 28 days.

Step-by-step explanation:

3.75*28= 105

Dion ran 105 kilometers in 28 days.

Answer:

105 Kilometers

Step-by-step explanation:

3.75 times 28 equals 105.

Find the marked prices of the following , given the percentage discount and the sale prices: part a: 12% discount , and the sale price $77
part b : 25% discount , and the sale price $123

Answers

Answer:

A) $87.5

B) $164

Step-by-step explanation:

A) Marked Price (Original Price)

= [tex]\frac{Sale Price}{1 -Discount}[/tex]

=[tex]\frac{77}{1-0.12}[/tex]

=87.5

B) Marked Price (Original Price)

=[tex]\frac{Sale Price}{1 -Discount}[/tex]

=[tex]\frac{123}{1-0.25}[/tex]

=164

will someone plz help me

Answers

the answer is none the right answer would be x>= -37/3
All you have to do is put in one of the numbers given and put it in the inequality as x. For example, in the picture you can see that I put in each of the numbers as x for the equations and checked which ones came out as false or true. The ones that came out as true are the correct answer. So the answer is 8 and 2.

2t + 9 + 4 + 3t = 23
full answer no word

Answers

Answer:

t = 2

Step-by-step explanation:

Find the solution of the system of the equation 4x+10y=-24
-2x+y=-24

Answers

Answer:

4x+10y=-24

-2x+y=-24

2x+11y=-48

48+2x=0

48+11y =0

48=2x

48=11y

48/2 =2x/2

48/11=11y/11

x=24

y= 48/11

2.5( 2 + 2) x (2^2 + 2^2) =

Answers

Answer:

80

Step-by-step explanation:

2.5(2+2) x (2^2+2^2)

2.5(4) x (4+4)

10 x 8

80

your answer is 80 :)

Answer:

80

Hope this helps :3

help me please!!!!!!!!!!!!!!!!

Answers

Answer:

The second store is cheaper

1st store is $290 and the 2nd is $257

Heather wants to purchase an electronic guitar. The price of the guitar with tax is $2,420. If she can save $90 per month, how long will it take her to save up for the guitar?

Answers

Answer:

About 27 months with additional days

Step-by-step explanation: 2420/90 is 26.888888888888888888888888888889

Find the area of the
triangle.

Answers

Answer:

472.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Base (b) = 30 yd

height (h) = 31.5 yd

Area of the triangle

= 1/2 * b * h

= 1/2 * 30* 31.5

=472.5 yd²

what the value of 4 in 0.487
​

Answers

Tenths place ??? I dunno

Answer:

It is its tenth value

Step-by-step explanation:

The 4 in .487 is the tenths value

what is a linear equation​

Answers

Answer:

A linear equation is an algebraic equation of the form y=mx+b. Where m is the slope and b is the y-intercept. A linear equation most times is called a "linear equation of two variables," where y and x are the variables.

Step-by-step explanation:

What is the equation in slope-intercept form

( y = mx + b)?

A. y =13x -3/2

B.y = -3/2x + 13

Answers

Answer:

B

Step-by-step explanation:

Slope is rise/run, so the fraction would be more likely to be the correct answer.

solve the system using the any method:

x+3y=9
2x+5y=14

pls explain-

Answers

-3,4 is your answer
Sorry photo messed up and bad quality

How to tell the difference between multiplication and division word problems?

Answers

Answer:

Multiplication is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction and division. The result of a multiplication operation is called a product. And division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication

multiplication word problems would usually have- by, product, times, triple, double, groups of

division word problems what are usually have- equal parts, divide, Half of, ratio, quotient, out of



hope this helps :)

PLEASE HELP ME I WILL DO ANYTHING

Answers

Answer:

we can tell if line ac is straight

Step-by-step explanation:

Is this a function?






Help me plz and i will give you the brainlest

Answers

Answer:

It is a function because the input values are different.

The perimeter of a square is given as 8x+20. Write two different expressions for the perimeter. Use factoring to write one of the expressoins. Are the expressions equivalen? Explain

Answers

Answer:

P = 4(2x + 5)

P = (2x + 5)+(2x + 5)+(2x + 5)+(2x + 5)

Step-by-step explanation:

Given that:

Perimeter of square = 4 * s

Where s = side length

If perimeter, P = 8x + 20

Then,

4s = 8x + 20

Divide both sides by 4

4s / 4 = (8x + 20) / 4

s = 2x + 5

P = 4s

P = 4(2x + 5)

Or

P = 2x + 5 in 4 places

P = (2x + 5)+(2x + 5)+(2x + 5)+(2x + 5)

Andre and Elena are each saving money. Andre starts with $100 in his savings account and adds $5 per week. Elena starts with $10 in her savings account and adds $20 each week.

Answers

Answer:

6 weeks

Step-by-step explanation:

You need to write an equation for each.

For Andre, he has 100 dollars, and every week gets 5 dollars more. You add the 5 dollars, and Since you don't know how many weeks it has been, use a variable.

For Elena, she has 10 dollars, and gets 20 each week.

Now that you know that it has been 4 weeks, you can plug in 4 for the variable for weeks.

Andrew:100+5(4)=100+20+120

Elena: 10+20(4)=10+80=90

Andrew has more money in this time.

To find when they have the same amount, equal their expressions to each other. This means that they will have the same amount (because they are equalled) and you can solve to find the variable, which means the weeks that they are equal at.

Bring the like terms to each side by canceling them out. Since you have positive 10, then subtract 10 to each side. You have 5w, so subtract 5w to each side.

100+5w=10+20w

90+5w=20w

90=15w

90 divided by 15=6

w=6

Rhonda and Shalene live together in an apartment, so they combine their income each week to pay for their rent and bills. Rhonda's paycheck is modeled by the function r(x)=22x+50,r(x)=22x+50, where xx is the number of hours worked. Shalene's paycheck is modeled by the function s(x)=30x−25,s(x)=30x−25, where xx is the number of hours worked. Which function represents their household income if they work the same number of hours?

Answers

Answer:

(r+s)(x)=52x+25

Step-by-step explanation:

i dont know how to explain but this is what I choose and it was right.

Find the value of x.

Answers

The value of x is would be A

HElppppppppppp
I don’t get it

Answers

Answer:

You have to use a cacolator. 5 boxes and its 9 pounds of beans in each. 5x9 is 45 pounds. Rice should be the 80 pounds hope that helps

Step-by-step explanation:

14.Find the value of <A in the following figure.
​

Answers

Given:

The figure of triangle ABC.

To find:

The measure of angle A.

Solution:

From the given figure, we get

[tex]\angle ABC+120^\circ=180^\circ[/tex]                 (Linear pair)

[tex]\angle ABC=180^\circ-120^\circ[/tex]

[tex]\angle ABC=60^\circ[/tex]

According to the exterior angle theorem, the exterior angle of a triangle is equal to the sum of two opposite interior angles.

[tex]\angle A+\angle ABC=105^\circ[/tex]          (Exterior angle theorem)

[tex]\angle A+60^\circ=105^\circ[/tex]

[tex]\angle A=105^\circ-60^\circ[/tex]

[tex]\angle A=45^\circ[/tex]

Therefore, the measure of angle A is 45 degrees.

How many solutions does 5x + 4y=6 have

Answers

Answer:

Error....

.

.

.

.

.

At least 2 equation needed for the solution of two variables

What is X for brainliest

Answers

Answer:

the value of x is 2

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

Given 3 parallel lines intersected by 2 transversals then the parallel lines divide the transversals proportionally, that is

[tex]\frac{3x}{4}[/tex] = [tex]\frac{7.5}{2.5x}[/tex] ( cross- multiply )

7.5x² = 30 ( divide both sides by 7.5 )

x² = 4 ( take the square root of both sides )

x = [tex]\sqrt{4}[/tex] = 2

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