What is three less than twice a number is at least negative one?
Three less refers to the negative 3, twice a number refers to 2x, and at least negative one is > 1.
What number increased by 3 is equal to 3 less than twice the number?
The answer is 3. Three Less: subtract 3 from 2n. x = 3. 3 times 2 is 6.
What does one less than twice a number mean?
One less than twice a number is seventeen. 2x – 1 = 17. Twelve is the product of a number and three. 12 = 3x. Half of a number is twenty.
What is twice a number divided by 6 is 42?
6n + 15 = 42.. Twice a number divided by 6 is 42. 2n/6 = 42.. Four less than a number, multiplied by 6, is 25.
Is 10 less than twice?
Pretty simple. take the number given, multiply it by 2, then subtract 10 from the answer. If N is 7, then “10 less than twice the number” is 2*7 – 10 = 14 – 10 = 4.
What does 1 more than twice mean?
1. ‘More than twice as much’ means ‘more than double’ but not exactly. If something was downloaded 1,000 times ‘more than double’ would be anything between 2,001 and 2,999 (although 2,999 would be better described as almost three times as much!)
What does twice a number mean?
First, let’s call “a number”: n. Next, “twice a number” means to multiply the number by 2 giving: 2×n or 2⋅n or 2n.
How do you write 4 less than twice a number?
We need to rearrange the word problem a little. When they are saying “4 less than twice a number”, that’s the same as saying “twice a number minus 4”. When you are asking for less than something, that indicates subtraction! We’ll abbreviate number to n .
What does 4 less than a number mean?
To be clear, “four less than (the unknown)” in English means “(the unknown), less four” in algebra. If you’re not sure of this, plug numbers in. If you get four dollars less an hour than (an unknown worker), you wouldn’t subtract that worker’s pay from 4; instead, you’d subtract 4 from that worker’s pay: p – 4.
What is 3 less than twice the width?
If the width (w) of a rectangle is 3 less than twice its length (l), then that translates into an equation: w=2l−3. We also know that w⋅l=131.
How do we write the expression the ratio of two less than thrice a number and four in symbols?
(2-3x)/4.
What equation is used to find width?
To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.
What equation can be used to find the length and width of a rectangle?
To calculate the length and width of a rectangle first, calculate the value of width ‘w’ by using the area of rectangle formula that is, ‘w = A/l’.
How do you find the length when you have the area and width?
A = L * W, where A is the area, L is the length, W is the width or breadth. NOTE: When multiplying the length by the width, always ensure you work in the same unit of length.
How do you find the length of an area?
Because a square has four sides of equal length, the area is given by A = L2. If you know the area, you can immediately determine the length of each side, because it’s the square root of the area. The length of each side of the square is the square root of 20, which is 4.47 meters.
What is the formula for area and perimeter?
Formula for geometrical figures
| Perimeter formula | |
|---|---|
| Square | 4 × side |
| Area formula | |
| Square | side2 |
| Rectangle | length × width |
What are two ways to find area?
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
How do you find the missing area of a rectangle?
Correct answer: To find the area of a rectangle, multiply its width by its height. If we know two sides of the rectangle that are different lengths, then we have both the height and the width.
What is the relationship between the area of the rectangle and it’s sides?
The area of the rectangle is actually the product of its sides of its length and width. Thus, the formula in computing the area of the rectangle is A = l x w or A = lw.
What is the relationship between length and area?
Length is the size of a line segment (see distance formulas), area is the size of a closed region in a plane, and volume is the size of a solid. Formulas for area and volume are based on lengths.
What is the perimeter and area of a rectangle?
The perimeter P of a rectangle is given by the formula, P=2l+2w , where l is the length and w is the width of the rectangle. The area A of a rectangle is given by the formula, A=lw , where l is the length and w is the width.
What is a the area of a rectangle?
In other words, the area of a rectangle is the product of its length and width. That is, A = l x w where l is the length and w is the width of the rectangle. For example, the area of a rectangle of length 35 m and width 25 m is 35 times 25 or 875 square meters.
How do you convert the perimeter and area of a rectangle?
Perimeter of a Rectangle
- Remember the formula for perimeter and area of a rectangle. The area of a rectangle is a = length * width, while the perimeter is p = (2 * length) + (2 * width)
- Substitute the known values into the area formula. 36 = 4 * w.
- Substitute values for length and width into the perimeter formula.