The ratio of a number to 0.4 is equal to the ratio of 12.5 to 20 Write the scale
0.25:0.4=12.5:20
75% of a number is more than two fifths 35. What's the number
Let's set this digit X
0.75x-0.4x=35
So x = 100
An isosceles triangle is five sixths of a meter long and two fifths of a meter long. What is the circumference of the triangle
5 / 6 × 2 + 2 / 5 = 31 / 15 (m)
31 / 15 △ 10 = 62 / 3 (decimeter)
A: the perimeter of this triangle is 62 / 3 decimeters
Two fifths of a meter: the ratio of two fifths of a meter is (), and the simplest integer ratio is ()
The ratio is 0.1 and the simplest integer ratio is 1:10