Question

Ваня стреляет в тире. Он заплатил за 10 выстрелов. За каждое попадание в мишень Ваня получает право на 2 дополнительных выстрела. Ему удалось сделать 20 выстрелов. Сколько раз Ваня попал в мишень?

Answer 1

Пусть Х количество попаданий из 20 выстрелов. Значит общее количество сделанных Ваней выстрелов должно равняться 10 +х*2. Следовательно, должно быть 10 + х*2 = 20,найдем х.
Решение
10+x*2=20
x*2=20-10
x*2=10
x=10:2
x=5
ответ: 5 попаданий в мишень

Answer 2

Problem Analysis

Vanya is shooting at a shooting range and has paid for 10 shots. For each hit on the target, Vanya earns the right to take 2 additional shots. In total, Vanya managed to take 20 shots. We need to determine how many times Vanya hit the target.

Solution

Let's assume that Vanya hit the target x times. Since each hit earns him 2 additional shots, the total number of shots he took can be expressed as:

Total shots = 10 (initial shots) + 2x (additional shots)

According to the problem, the total number of shots Vanya took is 20. Therefore, we can set up the equation:

10 + 2x = 20

Solving this equation will give us the value of x, which represents the number of times Vanya hit the target.

Calculation

Let's solve the equation:

10 + 2x = 20

Subtracting 10 from both sides:

2x = 10

Dividing both sides by 2:

x = 5

Answer

Vanya hit the target 5 times.

Explanation

Vanya initially paid for 10 shots. For each hit on the target, he earned the right to take 2 additional shots. Since he managed to take a total of 20 shots, it means that he hit the target 5 times.