# Grade - examples - page 168

- Skiing

Ski gondola starts at a distance of 975 m from the top and is 389 meters long. I went to the bottom station to the top station. How many meters I must go to the top of hill? - Minimum of sum

Find a positive number that the sum of the number and its inverted value was minimal. - Trapezium

The area of trapezium is 35 cm^{2}. Find its altitude if the bases are 6cm and 8 cm. - Broken tree

The tree is broken at 4 meters above the ground and the top of the tree touches the ground at a distance of 5 from the trunk. Calculate the original height of the tree. - Study

For 7 hours study, she scored a 75 so if she made 93 how many hours would she need to study? - Savings 2

Jozef and Michael saved 46 euros together. Michael saved 22 euros more than Jozef. How much did save each of them? - Slope

Find the slope of the line: x=t and y=1+t. - Cacao

Cacao contains 34% filling. How many grams of filling are in 130 g cacao. - Imaginary numbers

Find two imaginary numbers whose sum is a real number. How are the two imaginary numbers related? What is its sum? - Circle chord

Calculate the length of the chord of the circle with radius r = 10 cm, length of which is equal to the distance from the center of the circle. - Variation equation

Solve combinatorics equation: V(2, x+8)=72 - Storm

So far, a storm has traveled 35 miles in 1/2 hour in direction straight to observer. If it is currently 5:00 p. m. and the storm is 105 miles away from you, at what time will the storm reach you? Explain how you solved the problem. - Car parking

The car park has 80 cars when 53 cars leaves. How many car are there? - Bakery and flour

The bakery tray for flour was filled to 3/4 volume. After removing 875 kg of flour, it was filled to only 2/5 of the volume. How many tons of flour is in the full tray? - Garden

The garden grows 312 roses and 389 tulips. Which flowers are more? How many? - The rope

A 68 centimetre long rope is used to make a rhombus on the ground. The distance between a pair of opposite side corners is 16 centimetres what is the distance between the other two corners? - On the tree

15 squids and sparrows sat on the tree. Sparrows were 8 less than squids. How many sparrows were sitting at the tree? - Classroom

There are eighty more girls in the class than boys. Boys are 40 percent and girls are 60 percent. How many are boys and how many girls? - Book

Jitka read on holidays book that has 180 pages. In the first week read 45 pages. In the second week she read 15 pages more than the first week. How many pages left to read it yet? - Series and sequences

Find a fraction equivalent to the recurring decimal? 0.435643564356

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