20 men can make a road for 50 km in 10 days in hown many days can 15 men make a road for 7km

1.87 days

Step-by-step explanation:

If it takes 20 men can make a road for 50 km in 10 days, by the unitary method,  1 man can make 50 km/20 in 10 days.

So 1 man can make 2.5 km in 10 days.

We then calculate for 15 men by multiplying the expression by 15

So, for 15 men, 15 × 1 man can make 2.5 km × 15 in 10 days/

So, 15 men can make 37.5 km in 10 days.

Since 15 men can make 37.5 km in 10 days, 15 men will make 1 km in 10/37.5 days.

So multiplying by 7,

15 men will make 7 × 1 km in 7 × 10/37.5 days

Thus 15 men will make 7 km in 1.87 days

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: