Question

●By what number should we multiply - 15 \ 28 so that the product may be -5\7?

●simplify
a)
$({3}^{2?} + {2}^{2?}) \times ( \frac{ {1}^{?3} }{2?})$
b)
$( {2}^{2} + {3}^{2} - {4}^{2} ) \div \frac{ {3}^{2} } {2?}$
c)
${3}^{ - 1} \times {4}^{ - 1} \times {5}^{ - 1}$
●Evaluate
a}
$\frac{8 - 1 \times {5}^{3} }{2 {}^{? - 4} ?}$
​

Answer 1

Answer:

4/3 is the answer

-15/28*4/3 = - 5/7

Answer 2

Answer:

$\frac{ - 15}{28} \times x = \frac{ - 5}{7}$

$x = \frac{ - 5}{7} \times \frac{ - 28}{15}$

$x = \frac{1}{1} \times \frac{4}{3}$

$x = \frac{4}{3}$

here is your answer (◕ᴗ◕✿)(◕ᴗ◕✿)( ╹▽╹ )