Switch the second equation to equal y so...
y=-2x-3
then plug in for y in the first equation
2x+4(-2x-3)=6
2x-8x-12=6
-6x=18
x=-3
now plug in for y
2(-3)+y=-3
-6+y=-3
y=3
answer (-3,3)
The school can expect to raise 1500p for charity.
<u>Explanation:</u>
(a)
The possibility space is solved in the image attached.
(b)
20p for each player
30p for lollipop
Number of people = 120
Charity amount = ?
Out of 12 outcomes, the probability of getting 7 is 3
So, probability of getting 7 for 120 people = 
= 30
Money earned from the players = 20p X 120
= 2400p
Cost of 30 lollipops = 30p X 30
= 900p
Money received for charity = 2400p - 900p
= 1500p
Therefore, the school can expect to raise 1500p for charity.
Answer: A proportion is simply a statement that two ratios are equal.
Example: 2:6 = 1:3
To get that you do this: 2:6 ÷ 2:2 = 1:3
-----------------------------------------------------------
Example 2: 5:10 = 1:2
To get that you do this: 5:10 ÷ 2:2 = 1:2
Answer:
The answer is 56 dollars.
Step-by-step explanation:
If you add 63 by 21 you would get the answer of 84. You would then have to divide 84 by 150% and you would get the answer of 56. (I did this on calculator)
Answer:


/·20
12x-15x = -8-4
-3x= -12. /·(-1)
3x=12
x=4
Step-by-step explanation:
