Flowerbed

On the flowerbed were planted 280 flowers - pansies and crayons during the first week, wilts quarter of pansies and an eighth crayons, which is 20% of all flowers.

How many pansies were planted on the flowerbed?

Correct answer:

x =  168

Step-by-step explanation:

x+y=280 41x+81y=10020280

x+y=280
1/4·x+1/8·y = 20/100·280

x+y = 280
50x+25y = 11200

Pivot: Row 1 ↔ Row 2
50x+25y = 11200
x+y = 280

Row 2 - 1/50 · Row 1 → Row 2
50x+25y = 11200
0.5y = 56


y = 56/0.5 = 112
x = 11200-25y/50 = 11200-25 · 112/50 = 168

x = 168
y = 112

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: