# Save trees

25 tons of old paper will save 1,600 trees. How many tons of paper is needed to save the 32 trees in the park?

Correct result:

x =  0.5 t

#### Solution:

$x=\dfrac{ 32 }{ 1600 } \cdot \ 25=\dfrac{ 1 }{ 2 }=0.5 \ \text{t}$

Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

Tips to related online calculators
Check out our ratio calculator.
Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

## Next similar math problems:

• Donuts
Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8
• Sugar production
From 1 ton of beet, 150 kg of sugar is produced. To clean 1 ton of sugar 450 kg of lime is consumed. Calculate how many kgs of lime is consumed when processing 1 ton of sugar beet?
• Two machines
Performances of two machines are in a ratio of 7:12. A machine with less power produced 406 pieces of products per shift. a) How many pieces produced per shift second machine? b) How many pieces produced two machines together for five shifts?
• Arble bag
A marble bag sold by Rachel's Marble Company contains 5 orange marbles for every 6 green marbles. If a bag has 35 orange marbles, how many green marbles does it contain?
• Simplify 2
Simplify expression: 5ab-7+3ba-9
• Unknown number 24
f we add 20, we get 50% of its triple. What is this unknown number?
• Simple equations
Solve system of equations: 5x+3y=5 5x+7y=25
• Greg and Bill
Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill?
• Two numbers
Find two numbers whose difference and ratio is 2.
• 1.5 divided
1.5 divided by 1 = w divided by 4
• Weights
Marry and John together weighing 49 kg. Their weights are in ratio 1:6. Determine their weights.
• The piglet
The weight of the piglet grew regularly by five kilograms for four months. Determine the proportion by weight of the piglet in each month, if the first weighed 35 kg.
• Six percents
6% of the base is 21. How much is 28% of this base?
• Pigs
Pigs are feed by beet.Beet feed containing 12% dry solids, which is 0.72% of digestible crude protein. How much beet must beconsumed in one month (30 days), if the weight of digestible crude protein contained in a daily dose of beet was 0.912 kg?
• Weightlifter
Weightlifter lifted 75% of its weight. Determine how much weight lifted when he weighs 132 kg.
• Diver and pressure
Determine what pressures is exposed diver without a suit at a depth of 15 meters, with a small space suit at a depth of 25 meters and a massive suit at a depth of 70 m in water.