Question

PLEASE HELP!! WILL MARK BRAINLIEST!!

Answer 1

Answer:

if u have any doubts feel free to ask :)

Step-by-step explanation:

Sum of ratio : 9 + 7 + 4 = 20

a)

Adele share :

                   $\frac{9}{20} \times 680 = 9 \times 34 = \ 306$

b)

Barbara share :

                    $\frac{7}{20} \times 680 = 7 \times 34 =\ 238$

Collette share :

                     $\frac{4}{20} \times 680 = 4 \times 34 = \ 136$

c)

    $            €

 1.125           1

 306            x

    $\frac{1.125}{306} = \frac{1}{x}$          [cross multiply]

$x =\frac{ 306} {1.125}$

x = €272

Adele receives = €272

d)

Apple        Cost

 1 kg         2.69

 5 kg          y

y = 2.69 x 5 = $13.45

Cost of 5kg of apples = $13.45

Cost of 3 kg bananas = 17.56 - 13.45 = $4.11

Banana             Cost

  3kg                 4.11

   1 kg                 z

   

  $z = \frac{4.11}{3}$

z = $1.37

Cost per kilogram of banana = $1.37

e) Collette share = $136

Half of it on clothes = (1/2) x 136 = $68

(1/5) of her share on books = (1/5) x 136 = 27.20

Balance amount with her = 136 - 27.20 - 68 = $ 40.80