Question

please tell me the answer​

Answer 1

Answer:

1 ans is 7/15

2 ans is 2

3 ans is 35

Answer 2

1) To find the reciprocal of $2\frac{1}{7}$ we need to convert it to improper fraction.

$2\frac{1}{7} = \frac{15}{7}$

So the reciprocal of $\frac{15}{7}$ is $\frac{7}{15}$.

2)  -2 + (-8) ÷ (-4)

BODMAS ⇒ Division

(-8) ÷ (-4) = 2

Negative integer divided by another negative integer gives a positive integer. So thats why the answer here is 2.

BODMAS ⇒ Addition

-2 + (-2) = 0

3) x ÷ (-7) = (-5)

x = (-5) × (-7)

x = 35

4) 0.8 - 0.13

0.80 - 0.13 = 0.67