Question

Jodie spent 25% less buying her English reading book than Claudia. Gianna spent 9% less than Claudia. Gianna spent more than Jodie by what percent

Answer 1

Step-by-step explanation:

Given : 1/16 ÷ 1/81 + - 1/8

To find: multiplicative inverse

Solution:

a multiplicative inverse is basically a reciprocal

Multiplicative inverse of number is the number which if multiplied by original number result in 1

1/16 ÷ 1/81 + -1/8

1/16 ÷ 1/81 = 81/16

+ - 1/8 = - 1/8

81/16 - 1/8

= 81/16 - 2/16

= (81 - 2)/16

= 79/16

Multiplicative inverse = 16/79

Answer 2

Step-by-step explanation:

If a chemical reaction happens in a container where one or more of the reactants or products can escape, you have an open system.