Question

-3 1/3*(-1 2/7)*(-3)*(-7) СРОЧНО!!!

Answer 1

Ответ:

Пошаговое объяснение:

-3 1/3*(-3)=-10/3*(-3)=10

-1 2/7*(-7)=-9/7*(-7)=9

10*9=90

Answer 2

Переводим смешанные дроби в неправильные:

$-\frac{10}{3} * (-\frac{9}{7}) * (-3) * (-7) = 90$

1) $-\frac{10}{3} * (-\frac{9}{7}) = \frac{30}{7}$

2) $\frac{30}{7} * (-\frac{3}{1}) = -\frac{90}{7}$

3) $-\frac{90}{7} * (-\frac{7}{1}) = 90$

Answer 3

To solve the expression -3 1/3 * (-1 2/7) * (-3) * (-7), let's break it down step by step:

1. Convert the mixed numbers into improper fractions: -3 1/3 = -10/3 -1 2/7 = -9/7

2. Rewrite the expression using the fractions: -10/3 * (-9/7) * (-3) * (-7)

3. Simplify the expression by multiplying the numerators and denominators: (-10 * -9) / (3 * 7) * (-3) * (-7)

   Simplifying further, we have: (90 / 21) * (-3) * (-7)

4. Perform the division: (90 / 21) equals approximately 4.2857 (rounded to four decimal places).

5. Substitute the division result back into the expression: 4.2857 * (-3) * (-7)

6. Multiply the remaining numbers: 4.2857 * (-3) * (-7) equals approximately 90.0014 (rounded to four decimal places).

Therefore, the result of the expression -3 1/3 * (-1 2/7) * (-3) * (-7) is approximately 90.0014.