Question

A/2=b/3=c/5 и a+b+c=30 если да, то найдите c.​

Answer 1

Ответ: а/2=ь/3 или 3*а=2*ь или ь=1,5*а.

а/2=с/5 или 5*а=2*с или с=2,5*а. Тогда а+ь+с=а*(1+1,5+2,5)=5*а=30 или а=6. Значение с=6*2,5=15.

Пошаговое объяснение:

Answer 2

To solve this problem, we can use the given equations:

1. A/2 = b/3 = c/5
2. a + b + c = 30

Let's find the value of c.

Since A/2 = b/3 = c/5, we can represent these fractions with a common variable k:

A/2 = k, b/3 = k, c/5 = k

Now, let's express A, b, and c in terms of k:

A = 2k, b = 3k, c = 5k

Substitute these values into the second equation (a + b + c = 30):

2k + 3k + 5k = 30

Now, combine like terms:

10k = 30

To solve for k, divide both sides by 10:

k = 30 / 10 k = 3

Now that we have the value of k, we can find the value of c:

c = 5k c = 5 * 3 c = 15

So, the value of c is 15.