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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 do you solve 3log5 125 - log2 8 equals x?

Your calculator won't usually have a function to calculate logs in base 5 or base 8 directly, but this can easily be solved. For example:

log5125 = log 125 / log 5 (taking both logs in base 10, or both logs in base e)

In this particular case, you can also solve the equation mentally - you don't even need a calculator! Just use the definition of a log: "To what power must I raise 5 to get 125?" The answer to this is, by definition, log5125. Similarly with log28.

What is the answer of antilog of 15.59?

Antilog 15.59 is the number whose logarithm is equal to 15.59. If y is the number whose logarithm is 15.59, then log y = 15.59. This is equivalent to y = 10^15.59. So we have:

antilog 15.59 = 10^15.59 = 3.89045145E15

How do you write 3.9 in expanded form?

To write 3.9 in expanded form, you would break down the number into its individual place values. In this case, 3 represents the whole number part and 9 represents the decimal part. Therefore, 3.9 in expanded form is 3 + 9/10.

How many horizontal edges does a cube have?

Ah, a cube is a wonderful shape with 12 edges in total. Now, when we talk about horizontal edges specifically, we're looking at the edges that run parallel to the ground, and a cube has 4 of those lovely horizontal edges. Just imagine those edges catching the light and creating beautiful shadows as they sit so peacefully on the tabletop.

What is a ratio is equivalent to 12 to 10?

A ratio is equivalent to 12 to 10 when both numbers can be divided by the same factor to simplify the ratio. In this case, both 12 and 10 can be divided by 2 to get 6 and 5 respectively. Therefore, the equivalent ratio to 12 to 10 is 6 to 5. This means that for every 6 of one quantity, there are 5 of the other quantity.

How many times can 2 go into 48?

2 can go into 48 24 times, meaning that 48/2=24.

What is 8 minus x?

In the expression 8 - x, "8" is the minuend and "x" is the subtrahend. When you subtract x from 8, you are finding the difference between the two values. The result will vary depending on the value of x.

Is ginger extract effective in killing cockroaches?

Well, honey, ginger extract might make your stir-fry taste better, but it's not gonna do squat against those pesky cockroaches. If you want to get rid of those critters, stick to proven methods like traps, baits, or calling in the professionals. Ginger might spice up your life, but it won't spice up your cockroach-killing game.

What are some creative and engaging LEGO builds for kids that can help enhance their problem-solving skills and creativity?

Some creative and engaging LEGO builds for kids that can enhance problem-solving skills and creativity include building a maze, creating a mini city with different structures, designing a working catapult, constructing a bridge that can hold weight, and making a robot with moving parts. These builds encourage critical thinking, spatial reasoning, and imagination.

What is 3 sided shape with 1 pair of perpendicular lines?

A 3-sided shape with 1 pair of perpendicular lines is called a right triangle. In a right triangle, one of the angles is a right angle, which means it measures 90 degrees. The side opposite the right angle is called the hypotenuse, while the other two sides are called the legs. The perpendicular lines in a right triangle are formed by the legs meeting at a right angle.

What is the square root of 149 in radical form?

The square root of 149 in radical form is √149. This means that the number that, when multiplied by itself, equals 149 is the square root of 149. The square root of 149 is an irrational number, as it cannot be expressed as a simple fraction.

How do you turn 3.83333333333 into a fraction?

To turn a decimal like 3.83333333333 into a fraction, you first identify the repeating decimal pattern, which in this case is 3.83. Next, you count the number of decimal places in the repeating pattern, which is 2. Then, you place the repeating pattern over a denominator with the same number of nines as the decimal places, resulting in 383/100. Finally, simplify the fraction if possible by dividing both the numerator and denominator by their greatest common divisor, if any.

What is the algebraic expression for the product of 6 and s?

The algebraic expression for the product of 6 and s is 6s. In algebra, when two quantities are multiplied, we simply write them next to each other with no operation symbol in between. Therefore, 6 multiplied by s is represented as 6s.

The area of a rectangle is 243 cm2 The length is three times greater than the width What are the dimensions?

Let the length be 3x and the width be x:

3x*x = 243

3x2 = 243

Divide both sides by 3:

x2 = 81

Square root both sides:

x = 9

Therefore: length = 27 cm and width = 9 cm

How many yards of fabric for a sash?

Well, honey, it depends on the size of the sash. A general rule of thumb is about 1-2 yards for a standard sash, but if you want it extra long and dramatic, go ahead and splurge on 3 yards. Just remember, it's always better to have a little extra fabric than to come up short, trust me on that one.

Write a word problem that can be evaluated by algebraic expression y - 95 and evaluate it for y equals 125?

Sure! Here is a word problem that can be represented by the algebraic expression y - 95:

"Sarah had y dollars in her savings account. She spent $95 on a new dress. Write an expression to represent how much money she has left in her account."

If y equals 125, we can evaluate the expression y - 95 by substituting y with 125:

125 - 95 = 30

Therefore, Sarah has $30 left in her savings account after buying the dress.

What is 6.3333333 as a fraction?

To convert 6.3333333 to a fraction, we first note that the repeating decimal 0.3333333 can be represented as 3 repeating. Therefore, we can express 6.3333333 as 6 + 1/3. This can be further simplified to 19/3, making 6.3333333 as a fraction equal to 19/3.

What does x times y equal?

Oh, dude, x times y equals the product of x and y. It's like when you have x groups of y things, and you're too lazy to count them all out individually, so you just multiply them together and call it a day. Math, man, it's wild.

How many square foot in a circle that is 7 feet in diameter?

The area of a circle is the number pi multiplied by the square of the radius of the circle. The radius is half the diameter. Therefore, the area of the specified circle is pi(3.5)2 = 38 square feet, to the justified number of significant digits. The last digit in the answer is depressed because it may not be accurate within 1 unit, if the diameter of 7 is accurate to only one significant digit.

Pail and pale in a sentence?

Jack turned pale with anger when his brother threw a pail of water over him