Question

A+b=25. Найдите значение выражений 2a+2b+4

Answer 1

A+b=25
2a+2b+4=2(a+b)+4=2*25+4=50+4=54

Answer 2

A+B=25. Следовательно, на А и нa B приходится по 5 баллов отдельно.
значит, 2а+2b=10+10+4=24. скорее всего так, но могу и ошибаться

Answer 3

To find the value of the expression 2a + 2b + 4, we can use the given equation A + B = 25.

We can solve for A or B in terms of the other variable and substitute it into the expression.

Let's solve for A in terms of B:

A + B = 25

Subtracting B from both sides:

A = 25 - B

Now substitute this value of A into the expression:

2a + 2b + 4 = 2(25 - B) + 2B + 4

Simplifying:

2(25 - B) + 2B + 4 = 50 - 2B + 2B + 4

The B terms cancel out:

50 + 4 = 54

Therefore, the value of the expression 2a + 2b + 4 is 54.