Answer:
£121
Step-by-step explanation:
5/12 of the total coins = 5/12 x 96 = 40 ⇒ 40 coins are £2 coins
26 of the coins are £1 coins
Number of 50p coins = 96 - 40 - 26 = 30 ⇒ 30 of the coins are 50p coins
Total money collected = 40 x £2 + 26 x £1 + 30 x £0.50 = £121
(rememberinf to convert 50p into £s)
You substitute in an expression by filling in the desired and accustomed unknown value to the value you're trying to find. An example below can better elaborate what I want to say above. In the equation below, 7 - 2n = 5 the unknown is represented by n moreover, the equation suggest to find the missing to make it equilateral on both sides.
In mathematical expression, the equation then becomes 7 - 2n = 5
The next procedure is to find the unknown.
1. 7 - 2n = 5
2. -2n = 5 - 7
3. -2n = -2
4. n = -2/-2
5. n = 1
Check:
Substitute n = 1
7 - 2 (1) = 5
7-2 = 5
5=5
Answer:
i think 88
Step-by-step explanation:
(it's been a while since I've done this so I'm not too sure it's correct)
The formula we need to use is
2πr(angle/360)
we need the radius (r)
To get r we need angle AES
180-80= 100
using the equation from before
88=2πr*(100/360)
raidus: 50.42
Then to get the length CD we need angle DEC
180-80=100
2π*50.42*(100/360)=88
there probably was some kind of shortcut we could've used to figure this out faster but whatever
Answer:
7:12
Step-by-step explanation:
I hope it helps. Hope its correct
