Question

А:(-7/5)=15/7:(-10)​

Answer 1

$\frac{a}{ \frac { - 7}{5} } = \frac{ \frac{15}{7} }{ - 10} \\ \frac{5a}{7} = \frac{3}{14} \\ 70a = 21 \\ a = \frac{3}{10}$

Answer 2

To solve the equation, let's first simplify each side step by step.

Step 1: Simplify the right-hand side of the equation. 15/7 ÷ (-10) = 15/7 × (-1/10) (When dividing by a number, it's the same as multiplying by its reciprocal) = (15 × (-1)) / (7 × 10) (Multiply the numerators and denominators) = -15/70 = -3/14 (Divide both the numerator and denominator by their greatest common divisor, which is 5)

So, the equation becomes: A: (-7/5) = -3/14

Now, to find the value of A, we'll solve for it. Let's cross-multiply.

(-7/5) × 14 = A × (-3) (Cross-multiply) -98/5 = -3A

Now, isolate A by dividing both sides by -3.

A = (-98/5) ÷ (-3) A = (98/5) ÷ 3 A = (98/5) × (1/3) (When dividing by a number, it's the same as multiplying by its reciprocal) A = 98/15

So the value of A is 98/15.