Question

Номер 609 1)3/8 • (-4) + 5​

Answer 1

3/8 · (-4) + 5 = 3 целых 1/2 = 3,5.

1) 3/8 · (-4) = - 3/2 = - 1 целая 1/2

2) - 1 целая 1/2 + 5 = 5 - 1 целая 1/2 = 3 целых 1/2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1) 3/8 · (-4) = - 3/2 = - 1,5

2) - 1,5 + 5 = 5 - 1,5 = 3,5 - в десятичных дробях

Answer 2

To evaluate the expression, we can follow the order of operations (also known as PEMDAS/BODMAS) which stands for Parentheses/Brackets, Exponents/Orders, Multiplication/Division, and Addition/Subtraction.

Given expression: (3/8) * (-4) + 5

First, we perform the multiplication: (3/8) * (-4) = -12/8 = -3/2

Now, we can simplify the expression further: -3/2 + 5

To add fractions, we need to have a common denominator. In this case, the common denominator is 2.

Converting 5 into a fraction with a denominator of 2: 5 = 10/2

Now we can add the fractions: -3/2 + 10/2 = 7/2

Therefore, the simplified value of the expression is 7/2 or 3.5.