Fence and scale

The garden with 80 m of fencing is draw on plan as a square with a side length of 4 cm. At what scale is this plan made?

Result

M = (Correct answer is: 1:500) Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! Next similar examples:

1. Chords How many 4-tones chords (chord = at the same time sounding different tones) is possible to play within 7 tones?
2. Folded square ABCD is a square. The square is folded on the midpoint of AB and A is folded onto the fold, creating a shaded region. The perimiter of the shaded figure is 75. Find the area of square ABCD
3. Liters od milk The cylinder-shaped container contains 80 liters of milk. Milk level is 45 cm. How much milk will in the container, if level raise to height 72 cm?
4. Theorem prove We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
5. Resistance A resistor having an electrical resistance of 1.5 k ohms passes an electrical current of 0.1 A. Calculate what voltage is between the terminals of the resistor.
6. Powers Express the expression ? as the n-th power of the base 10.
7. Functions f,g Find g(1) if g(x) = 3x - x2 Find f(5) if f(x) = x + 1/2
8. Factory and divisions The factory consists of three auxiliary divisions total 2,406 employees. The second division has 76 employees less than 1st division and 3rd division has 212 employees more than the 2nd. How many employees has each division?
9. Nineteenth member Find the nineteenth member of the arithmetic sequence: a1=33 d=5 find a19
10. Linear system Solve a set of two equations of two unknowns: 1.5x+1.2y=0.6 0.8x-0.2y=2
11. First man What is the likelihood of a random event where are five men and seven women first will leave the man?
12. One half One half of ? is: ?
13. Trees A certain species of tree grows an average of 0.5 cm per week. Write an equation for the sequence that represents the weekly height of this tree in centimeters if the measurements begin when the tree is 200 centimeters tall.
14. Volleyball 8 girls wants to play volleyball against boys. On the field at one time can be six players per team. How many initial teams of this girls may trainer to choose?
15. 6 terms Find the first six terms of the sequence. a1 = 7, an = an-1 + 6
16. Two equations Solve equations (use adding and subtracting of linear equations): -4x+11y=5 6x-11y=-5
17. Trigonometry Is true equality? ?