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Algebra

The use of letters to substitute unknown numbers to form an equation. Solve the equation to get the unknown number using different methods such as simultaneous equations and more.

227,579 Questions

How many feet is a yard?

3 feet = 1 yard.

Here is the Imperial Table of Linear Measure.

12 inches = 1 foot

3 feet = 1 yard

22 yards = 1 chain ( The length of a cricket pitch between 'creases'.)

10 chains = 1 furling ( furlong' means 'furrows length' (ploughing).

8 furlongs = 1 mile.

What equals 3 feet?

three feet is the same as one yard. A yard equals thirty six inches and three feet equals to thirty six inches too

What is the inverse reciprocal of 0.01?

The inverse reciprocal of a number is calculated by taking the reciprocal and then finding its inverse. For 0.01, the reciprocal is 1/0.01, which equals 100. The inverse of 100 is -100. Therefore, the inverse reciprocal of 0.01 is -100.

How do you determine the equation for the emf induced in one turn and its rms value?

The induced electromotive force (emf) in one turn of a coil can be determined using Faraday's law of electromagnetic induction, which states that the induced emf (ε) is equal to the negative rate of change of magnetic flux (Φ) through the coil: ( ε = -\frac{dΦ}{dt} ). For a sinusoidal magnetic field, the rms value of the induced emf can be calculated as ( ε{rms} = \frac{ε{peak}}{\sqrt{2}} ), where ( ε_{peak} ) is the maximum induced emf. This is derived from the relationship between peak and rms values in alternating current (AC) circuits.

What is the year of manufactor for a topper M48 serial number I 119561?

from b.goforth on the gunbroker forums:

"the model 48 was actually introduced in 1943 and discontinued in 1954. it was produced in limited numbers during wwII. letter codes are as follows; 1943=D, 1944=E, 1945=F, 1946=G, 1947=H, 1948=I, 1949=J, 1950=K, 1951=L, 1952=M, 1953= N, 1954=P. the letter o was not used"

How many sides does a hexagons and pentagon have?

Oh, dude, a hexagon has six sides, hence the "hex" in the name, and a pentagon has five sides, like a pentagram without the evil connotations. So, like, a hexagon is like a cool six-sided shape, and a pentagon is like a chill five-sided shape. Easy peasy.

How do you graph 0.03 equals 0.3?

To graph the equation (0.03 = 0.3), first note that this statement is incorrect; (0.03) is not equal to (0.3). If you want to graph the two values on a number line, you would place a point at (0.03) and another point at (0.3), showing that they are distinct and separate values. The graph will illustrate that (0.3) is to the right of (0.03), indicating that (0.3) is greater than (0.03).

What is the function of mortas and pestle?

A mortar and pestle is a traditional tool used for grinding and mixing substances. The mortar is a bowl, typically made of hard materials like stone or ceramic, while the pestle is a heavy, club-shaped object used to crush and grind the contents. This tool is commonly utilized in cooking to prepare spices, herbs, and pastes, as well as in pharmaceuticals for grinding medications. Its design allows for effective blending and extraction of flavors and essential oils.

Find the x and y intercepts by using the cover up method of standard form 2x-5y20?

To find the x-intercept using the cover-up method for the equation (2x - 5y = 20), set (y = 0): (2x = 20) gives (x = 10). For the y-intercept, set (x = 0): (-5y = 20) leads to (y = -4). Thus, the x-intercept is (10, 0) and the y-intercept is (0, -4).

What is the circumference of a 30 foot circle?

What does the '30 foot' define???? Is it the radius or diameter??? Please clarify/

What is the square root to 16 over 81?

The square root of a fraction is found by taking the square root of the numerator and the denominator separately. The square root of 16 is 4, and the square root of 81 is 9. Therefore, the square root of ( \frac{16}{81} ) is ( \frac{4}{9} ).

What is the circumference of a 12 foot Diameter tank?

I am going to assume you have a cylindrical tank. The base of a cylindical tank is a circle. The circumference of a circle is 2*Pi*r or Pi*d. So, the circumference of your tank would be Pi*12 ~= 37.7'

What 6 numbers have a range 4 mean 9 median 9 mode 7 and add to 56?

MEAN

[x(1) + x(2) + x(3) + x(4) + x(5) + x(6] / 6 = 9

Hence

[x(1) + x(2) + x(3) + x(4) + x(5) + x(6] = 54

RANGE ; x(6) - x(1) = 4

x(6) = 4 + x(1)

MEDIAN ; (x(3)+ x(4)) / 2 = 9

Hence x(3) + x(4) = 18

Substitute

[x(1) + x(2) + 18 + x(5) + x(1) + 4 ] = 54

2x(1) + x(2) + x(5) = 32

Assume x(2) = x(5) for Mode.

Then by substitution

2x(1) + 2x(2) = 32

2(x)1) + x(2)+ = 32

x(1) + x(2) = 16

So x)1) + x(2) = 6 + 10 (max. range) 7+9 or 8+8

Hence

x(1) = 7

x(2) = 9

x(3) = 9

x(4) = 9

x(5) = 10

x(6) = 10

What is the equation of the line with a y-intercept of 75 and a rate of 75?

The equation of a line can be expressed in slope-intercept form as ( y = mx + b ), where ( m ) is the slope and ( b ) is the y-intercept. Given a y-intercept of 75 and a slope (rate) of 75, the equation of the line is ( y = 75x + 75 ).

What is the square root of 3 greater than?

The square root of 3 is greater than 1.7 but less than 1.8. Specifically, its approximate value is about 1.732. Therefore, the square root of 3 is greater than any number less than 1.732.

What is the median of 63 65 66 and 75?

Rearrange the terms into their rank order.

Already done!!! 63,65,66,75

For an EVEN number of terms; there are four terms here, and four is an even number.

You take the middle two terms, which are ,65, & 66. and find the mid-point between them, Which is 65.5

Hence ' 65.5 ' is the MEDIAN term.

NB If you have an ODD number of terms, 5 in this case, e,g, 63,65,66,66,75. Then you select the absolute middle term, which is ' 66 '.

What is the answer to page 14.4 in Punchline Algebra book B?

I'm sorry, but I cannot access specific pages from books, including the Punchline Algebra book B. However, I can help with algebra concepts or problems if you provide more details or context!

How many ounces of a 13 alcohol solution and a 42 alcohol solution must be combined to obtain 58 ounces of a 15 solution?

To solve this problem, let ( x ) be the ounces of the 13% alcohol solution and ( y ) be the ounces of the 42% alcohol solution. We have two equations:

  1. ( x + y = 58 ) (total volume)
  2. ( 0.13x + 0.42y = 0.15(58) ) (total alcohol content)

Solving these equations, we find ( x = 24 ) ounces of the 13% solution and ( y = 34 ) ounces of the 42% solution.

What is x to the third power times x to the fifth power?

x^(3) X x^(5) = x^(3+5) = x^(8)

Remember the coefficient 'x' MUST remain the same for both numbers.

NNB

x^(3) X y(5) is NOT allowed , because the coefficients 'x' & 'y' are different.

This multiplication is expressed as x^(3)y^(5). The indices are NOT added.

What is 8 to the power of a third?

The power of '1/3' is another way of expressing the 'cube root'.

Hence 8^(1/3) = 2

Remember

2x2x2 = 8 .

2^(3) 8

Hence

8^(1/3) = 2

What is negative one fourth to the third power?

(-1/4)^(3) =

-1/4 x -1/4 x -1/4 =

(+)1/16 x -1/4 = -1/64 = -0.015625

What is negative 4 to the fourth power?

(-4)^(4) = (+)256

-4x-4x-4x-4 = (+)16X (+)16 = 256

Cube root of 256 to the fourth power?

(256^(1/3))^(4) =

256^(4/3) =

256^(1.3333...... =

1625.498674..... ( The answer)

NB 256 raised to the power of 1/3 , means the 'cube root'. The answer is then raised to the fourth power.

However, under the rules for indices you can muktiply the indices together.

NNB Here are the indices rules.

a^(n) X a^(m) = a^(n+m)

a^(n) / a^(m) = a^(n - m)

(a^( n ))^(m) = a^(nm)

In all cases THE COEFFICIENT 'a' must be the same.

Fourth root of 256?

256^(1/4) = '4'

Remember

4x4x4x4 = 256

Hence the fourth root is '4'.

What is 3v plus x equals w?

The equation (3v + x = w) represents a linear relationship between the variables (v), (x), and (w). In this equation, (w) is the sum of three times the variable (v) and the variable (x). To isolate any variable, you can rearrange the equation accordingly, such as solving for (x) by subtracting (3v) from both sides, giving (x = w - 3v).