Answer:
A
Step-by-step explanation:
The total amount equals 40 when added together and the yellow is 5. 40 divided by 5 is 8 which makes 1/8
Answer:
There will be 4 blue marbles
Step-by-step explanation:
Yellow to blue marbles is in a ratio of:
5:10
the representative sample is:
2:x
simplee cross multiplication can be aplied
5x = 2*10
5x = 20
divide both sides by 5
x = 4
there should be four blue marbles
Answer:

or
5.32cm correct to 2 decimal places
Step-by-step explanation:
This is a right angled triangle from what I know so we have to apply pythagoras theorem.

we need to rearrange this to find a²


This can either be written as a fraction or decimal.

OR

correct to 2 decimal places
Answer:
-38
Step-by-step explanation:
1. Isolate y to one side.
y+12=-26
subtract 12 to both sides
y=-38