Question

Дистанция всего - 55кмБег- ?кмПлавание-?км, составляет 25% от бегаВелокросс- ?км, в 1целую 1/3 длиннее бегасрочно плизззз

Answer 1

Х  км - бег
0,25х  км - плавание
1 1/3 х  км - велокросс
Всего 55 км

х+0,25х+1 1/3 х=55
х+1/4 х+4/3 х=55
3*4х+3х+4*4х=55*3*4
12х+3х+16х=660
31х=660
х=660 : 31
х=21 9/31(км) - дистанция бега
21 9/31 * 1/4=165/31=5 10/31(км) - плавание
55 - 21 9/31 - 5 10/31=28 12/31(км) - велокросс

Answer 2

Distance Calculation

To calculate the distances for running, swimming, and cycling, let's start by assigning variables to the distances for each activity.

Let's denote: - Running distance as R km - Swimming distance as S km - Cycling distance as C km

Given information: - The total distance is 55 km. - Swimming constitutes 25% of the running distance. - The cycling distance is 1 and 1/3 times longer than the running distance.

Calculating the Running Distance

Let's start by calculating the running distance.

We know that the total distance is 55 km, and the swimming distance is 25% of the running distance. This can be represented as:

S = 0.25R

Calculating the Cycling Distance

The cycling distance is 1 and 1/3 times longer than the running distance. This can be represented as:

C = R + (1 + 1/3)R

Solving for C:

C = R + 4/3R

C = 7/3R

Total Distance Equation

We also know that the total distance is 55 km:

R + S + C = 55

Substitute the values of S and C:

R + 0.25R + 7/3R = 55

Solving for R:

R + 0.25R + 7/3R = 55

R(1 + 0.25 + 7/3) = 55

R(1 + 0.25 + 2.33) = 55

R(3.58) = 55

R ≈ 15.36 km

Calculating Swimming and Cycling Distances

Now that we have the running distance, we can calculate the swimming and cycling distances.

S = 0.25 * 15.36 ≈ 3.84 km

C = 7/3 * 15.36 ≈ 40.32 km

So, the distances are approximately: - Running distance: 15.36 km - Swimming distance: 3.84 km - Cycling distance: 40.32 km