Question

7,4 × 15/37 + 19 и (-2,97+3,07)×20

Answer 1

Ответ:

$7,4 * \frac{15}{37} + 19 = \frac{74}{10} * \frac{15}{37} + 19 = \frac{74*15}{10*37} + 19 = \frac{2*3}{2} = 3$

$(-2,97+3,07) * 20 = 0,1 * 20 = \frac{1*20}{10} = 2$

Answer 2

Let's solve the expression step-by-step:

1. 7.4 × 15/37 To multiply 7.4 by 15 and then divide the result by 37: 7.4 × 15 = 111 111 ÷ 37 ≈ 3

2. (-2.97 + 3.07) × 20 First, add -2.97 and 3.07: -2.97 + 3.07 = 0.1 Now, multiply the result by 20: 0.1 × 20 = 2

Now, let's add the results from the two parts of the expression:

3 + 2 = 5

So, the final result is 5.