Two times as many. Example: 8 is twice 4. Or happening two times. Example: "He asked her twice, but she didn't hear either time"
Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x.
Parts of an EquationIt is usually a letter like x or y. A number on its own is called a Constant. A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a coefficient)
more Bigger. The symbol > means greater than (the symbol < means less than). Example: 5 > 3 shows that 5 is greater than 3.
'Per' generally means 'for each' when using the word in math. An example is: 'There are 100 centimeters per meter,' which means that there are 100 centimeters for each meter.
Addition-sum, altogether, all, in all, together, total, total number, add, increase, increased by, more than. Subtraction-minus, greater than, take away, fewer than, less than, subtract, decreased by. Multiplication-product, multiply, multiplied by, times.
3 times of 4 is 12. 12 is the answer. The answer is 12.
This is because 9+9=18 or 9x2=18.
Ten times as much or as many; tenfold. adjective. 0. 0. An amount ten times as much or as many.
200% is twice as much as 100%.
1. The same number of. For example, He changed jobs four times in as many years means he changed jobs four times in four years. [
"As much as" means that quantities are being compared - "much" is an adjective referring to quantity. So "60% as much as" means "for every hundred units of quantity in $30, the answer has sixty such units." So we could solve this as. "$30 is thirty times a hundred cents, so the answer is thirty times sixty cents"
16 is 8 times as many as 2.
Y means "Why?" and "You or Yours".
In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept (that is, the point where the line crosses the vertical y-axis). This useful form of the line equation is sensibly named the "slope-intercept form".
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
The difference between 3 and 9 on a number line is 6 units. 2. The difference between -3 and 9 on a number line is 12 units.
The number (x) in: "3 more than twice a number is 7" is what we are solving here. In other words, you are looking for a number (x) that if you multiply it by two (same as twice) and then add 3, you get 7. The answer above is correct, because twice 2 is 4, and 3 more than 4 is in fact 7.
Remember, 5 less than y converts to minus 5. In other words, the order is reversed. +5 +5 Add 5 to both sides to isolate the y. So your answer is 15!
Hence to write the difference between 7 and n , we can write it as |n−7| , the absolute value of #n-7.
Answer: The number is 4 if the sum of twice the number and half the number is 10.
In arithmetic and algebra, the cube of a number n is its third power, that is, the result of multiplying three instances of n together. The cube of a number or any other mathematical expression is denoted by a superscript 3, for example 23 = 8 or (x + 1)3.
To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number.
2 Answers By Expert TutorsWhen you see "twice" that means 2 *. so now we have 2 * x. The other number being multiplied is 2. Let's put all that together. the product of twice a number and two is the same as the difference of three times the number and 7 over 9.
