David, Malachy and Paul share some sweets in the ratio 5:4:1. David gets 20 more sweets than Paul. How many sweets does Malachy get?

16

Step-by-step explanation:

ratio is 5:4:1

David: Malachy: Paul

David gets 20 (that is 4 times more than the original ration. so need to multiply everything by 4)

4*4=16

1*4=4

new ration- 20:16:4

So David gets 20

Malachy gets 16

Paul gets 4

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: