Answer:
£74.10 is the total cost for 26 tickets
Step-by-step explanation:
£2.85 for 1 ticket.
For 26 tickets:
2.85 × 26 = £74.10
Answer:
6
Step-by-step explanation:
this is how I calculate:
2x + x = 9
3x=9
x=3 girls
2(3)=6
6 boys
Answer:
x = -62/7
Step-by-step explanation:
-7x+(-21)=41
-7x -21 =41
Add 21 to each side
-7x-21+21 = 41+21
-7x = 62
Divide by -7
-7x/-7 = 62/-7
x =- 62/7
Answer:
1.1 : C - x^2 + x - 2
1.2 : A - 4a^2 - 6b^2 + 12
Step-by-step explanation:
When we have the expression p(x) - q(x), we can substitute those functions in:
(x^2 + 2x - 5) - (x - 3)
We can distribute:
x^2 + 2x - 5 - x + 3
and then combine like terms(2x & -x, -5 & 3)
x^2 + x - 2
This is the same as C.
We can start by distributing:
a^2 - 2b^2 + 3 - 4b^2 + 5 + 3a^2 + 4
Now, we can combine all the a^2 terms(a^2 & 3a^2):
4a^2 - 2b^2 + 3 - 4b^2 + 5 + 4
Then, we can combine the b^2 terms(-2b^2 & -4b^2):
4a^2 - 6b^2 + 3 + 4 + 5
and lastly, all the constants:
4a^2 - 6b^2 + 12
This aligns with option A
You can use substitution or elimination method to solve. <em>I used substitution.</em>
2(1/2y + 5) + 3y = -14
y + 10 + 3y = -14
4y + 10 = -14
4y = -24
y = -6
x = 1/2y + 5 = 1/2(-6) + 5 = -3 + 5 = 2
x = 2, y = -6
Answer: A