Question

A)3kg÷20 + 5kg÷20=b)150m÷(3dm +22dm)!решите примеры пожалуйста ​

Answer 1

Пошаговое объяснение:

1 кг = 1000 г

1 м = 10 дм

a) 3 кг : 20 + 5 кг : 20 = 150 кг + 250 кг = 400 кг

3 кг : 20 = 3*1000:20 = 150 кг

5 кг : 20 = 5*1000:20 = 250 кг

b) 150 м : (3 дм + 22 дм) = 1500 дм : (3 дм + 22 дм) = 1500 дм : 25 дм = 60

150 м = 150*10 = 1500 дм

Answer 2

Sure, let's solve the given expressions step-by-step:

A) $3 \text{ kg} \div 20 + 5 \text{ kg} \div 20$

Step 1: Convert kilograms (kg) to grams (g) since we're dividing by 20. 1 kg = 1000 g

So, the expression becomes: $3000 \text{ g} \div 20 + 5000 \text{ g} \div 20$

Step 2: Perform the division. $150 \text{ g} + 250 \text{ g}$

Step 3: Add the two results. $150 \text{ g} + 250 \text{ g} = 400 \text{ g}$

So, $3 \text{ kg} \div 20 + 5 \text{ kg} \div 20 = 400 \text{ g}$

B) $150 \text{ m} \div (3 \text{ dm} + 22 \text{ dm})$

Step 1: Convert decimeters (dm) to meters (m) since the denominator is in meters. 1 dm = 0.1 m

So, the expression becomes: $150 \text{ m} \div (0.3 \text{ m} + 2.2 \text{ m})$

Step 2: Perform the addition in the denominator. $150 \text{ m} \div 2.5 \text{ m}$

Step 3: Perform the division. $60$

So, $150 \text{ m} \div (3 \text{ dm} + 22 \text{ dm}) = 60$ meters.

Therefore, the solutions are:

A) $3 \text{ kg} \div 20 + 5 \text{ kg} \div 20 = 400 \text{ g}$

B) $150 \text{ m} \div (3 \text{ dm} + 22 \text{ dm}) = 60 \text{ m}$