Question

ТЕРМІНОВО!!!!!!!Обчисли найзручнішим способом. 1,3*3,7+1,3*1,6+1,7*4,1+1,7*1,2

Answer 1

Ответ:

1,3*3,7+1,3*1,6+1,7*4,1+1,7*1,2=1,3*(3,7+1,3)+1,7*(1,2+4,1)=1,3*5+1,7*5,3=15,51

Пошаговое объяснение:

Answer 2

I can help you with your math problem. The most convenient way to calculate this expression is to use the distributive property of multiplication over addition. That is, a*(b+c) = a*b + a*c. Applying this property, we get:

$$1,3*3,7+1,3*1,6+1,7*4,1+1,7*1,2 = 1,3*(3,7+1,6)+1,7*(4,1+1,2)$$

Now we can simplify the parentheses by adding the numbers inside:

$$1,3*(3,7+1,6)+1,7*(4,1+1,2) = 1,3*5,3+1,7*5,3$$

Next, we can multiply the numbers by using the rule for multiplying decimals. We move the decimal point two places to the right for each factor, multiply the resulting integers, and then move the decimal point four places to the left for the product. For example:

$$1,3*5,3 = 13*53 = 689 \Rightarrow 6,89$$

Using this rule, we get:

$$1,3*5,3+1,7*5,3 = 6,89+8,99$$

Finally, we can add the numbers by aligning the decimal points and adding the digits in each column:

$$6,89+8,99 = 15,88$$

Therefore, the value of the expression is 15,88. You can also check your answer by using an online algebra problem solver. I hope this helps you understand the solution. Have a nice day!