Answer:
Number of Starbursts= 66
Step-by-step explanation:
Method:
The first step in working out the number of Starbursts in the bowl is to add the the ratios of 3 and 4, this gives you 7.
The next step is to divide the total number of sweets which is 154 by the value of 7, this gives you 22. This is because we are trying to find out the value of one in the ratio.
The final step would be to work out the number of Starbursts in the bowl. This can be done by multiplying 22 by the ratio for Starbursts which is 3, this gives you 66. This means that out of 154 sweets 66 of them were starbursts.
Set by step:
1) Add 3 and 4.
2) Divide 154 by 7.

3) Multiply 22 by 3.

Answer: 40km/h
Step-by-step explanation:
distance = 20km
time = 30 min conver to hours. 
velocity = ?


Answer:
Below in bold.
Step-by-step explanation:
No repetition.
There are a total of 7 numbers.
For the number to be even it must end in 0, 2 or 8.
The other 3 numbers will be the number of permutations of 3 from the 6 other numbers.
Number of 4 digit numbers ending in 0
= 6P3 = 6! / 6-3!
= 120.
Now the number could also end in 2 or 8,
so there are 3*120 = 360 4-digit even numbers (no repetition).
With repetition.
There are 3 * 7^3 = 1029 with repetition.
-5 is the answer to your question.