The circumference of an isosceles triangle is 7 / 10 decimeters, and the length of one waist is 1 / 5 decimeters. What is the base of this triangle

3 / 10 decimeter
Because one waist is 1 / 5 decimeter, the other waist is also 1 / 5 decimeter
The perimeter is 7 / 10 decimeter
So the bottom is 7 / 10-1 / 5-1 / 5 = 3 / 10 decimeter

RELATED INFORMATIONS

1. The sum of the three numbers is 312, which can be divided by 7, 8 and 9 respectively, and the quotient is the same______ 、______ And______ ．
2. Twenty five out of twenty eight minus (two out of seven plus three out of four) is equal to?
3. Is 2 / x = 3 a linear equation with one variable
4. English translation Module 5 Unit2 of English text in Volume 1 of junior high school
5. All common factors of 16 and 20 are_________ The greatest common factor is________ ?
6. English articles on Chinese population
7. The number of chickens raised in the farm is 5 / 12 of the total number of chickens and ducks. 74 ducks were sold. At this time, the ratio of the number of chickens to the total number of chickens and ducks is 6:7. How many chickens were there? We need formula and diagram
8. A shop ordered a batch of glasses, 14 yuan each, 12 of which were damaged in transit. The unit price was 18 yuan when they were sold, and the total profit was 1160 yuan after they were sold out. How many glasses did the shop order?
9. Find the sum of the first 20 terms of sequence 1 / 2,2 / 4,3 / 8 / 4 / 16
10. If the equation KX + 14 = 3 (x-1) (1) With integer solution, find the value of integer k (2) without solution, find the value of K
11. Is 2 / x = 3 a linear equation with one variable? Why?
12. Is 3 / x = 4 a linear equation of one variable? It can be reduced to 4x = 3
13. Is x = 4 a linear equation with one variable
14. If the m-sup2; - 3 power of (m-2) x = 5 is a one variable equation of first degree, what is the value of M? If we calculate by M & sup2; - 3, m should be equal to 2, but it is contradictory to m-2 ≠ 0?
15. It is known that the absolute value of (K + 1) x ^ k - 5 = 7 is a linear equation of one variable about X, and the value of K is obtained
16. It is known that the solution of the linear equation 3kx + k = 8 with respect to X is x = 1
17. It is known that the M-1 power + 1 = 0 of X is a linear equation of one variable about X, and the equation MX = 2m-7x is solved I'm four ninths~
18. Given that the equation 2XM + 2 + 5 = 9 is a linear equation of one variable with respect to x, then M=______ ．
19. If 2x ^ (5n-4) - 3 = 0 is a linear equation of one variable with respect to x, then n=___ The solution of the equation is_____
20. If the 3-nth power of 2x - n = 0 is a linear equation of one variable with respect to x, then n=___