Pip and sara win some money and share it in the ratio 5: 4. pip gets £50. how much did they win in total?

90

Step-by-step explanation:

Write the ratio this way

Pip: Sara: Total

5    : 4 :      9

We multiply each by 10 to get Pip to 50  (5*10 = 50)

5*10: 4*10: 9*10

50  : 40 :  90

$90

Step-by-step explanation:

Given that the ratio of Pip: Sara is 5:4

This means :

Pip gets 5 parts

Sara gets 4 parts

Together they have 5 + 4 parts = 9 parts

Also given that Pip's 5 parts is equivalent to $50

Hence each 1 part is $50/5 = $10

if 1 part = $10

The total 9 parts = 9 x $10 = $90

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6