3. а) Составь задачу по краткой записи и схеме. - 5 шт.
- 2 шт., в 2 раза больше
?
б) Измени вопрос так, чтобы задачи решались в два
- 5 шт.
?
-
2 шт., в 2 раза больше
?
тот по рисунками схемам.​

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.