Answer:
$450
Step-by-step explanation:
Let E be the amount of money Ethan starts with, J be the amount Jun Wei starts with, and R be the amount Raj starts with. Let M be the total amount of money to start with.
To start:

This means Ethan has 5/20 of M, the money to start with. This reduces to 1/4 of M.
Afterwards:

This means Ethan has 3/13 of the remaining money (which is M-50!) after giving up 50. So
E = (M/4), or 4E = M
and

We know 4E = M, so we can substitute that in:

That's how much money Ethan had to start with. But we're asked how much he has AFTER giving $50 away, so that's $450.
Answer:
V= 18.75 cm^3
Step-by-step explanation:
- The formula for finding the volume for <em>any</em> given shape is V = L x W x H.
- So, multiply 2 1/2 cm x 2 1/2 cm x 3 cm.
- This gives you 18.75 cm^3
There is 14 green marbles because
2/5 = 16 blue marbles
1/4 = 10 red marbles so 16+10= 26 & 40-26=14
Answer:
25
Step-by-step explanation:
if four is the ratio of blue to five then divide four by 20 blue because thats the number your finding and you get 5 so then you multiply 5 by 5 and you get 25
126.56 feet
This can be found by finding the vertex of the parabola. You can find the t value using -b/2a and then plug that in to find the h value.