Answer:
£2598.80
Step-by-step explanation:
155 people pay
49 are under 16
The number of 16+ people is: 155 - 49 = 106
Total money collected:
106 * £18.60 + 49 * £12.80 = £1971.60 + £627.20 = £2598.80
We need to find two numbers that multiply to 24 (last coefficient) and add to 10 (middle coefficient). Through trial and error, the two values are 6 and 4
6 + 4 = 10
6*4 = 24
So we can break up the 10ab into 6ab+4ab and then use factor by grouping
a^2 + 10ab + 24b^2
a^2 + 6ab + 4ab + 24b^2
(a^2+6ab) + (4ab+24b^2)
a(a+6b) + 4b(a+6b)
(a+4b)(a+6b)
Therefore, the original expression factors completely to (a+4b)(a+6b)
Answer:
1. 4x - 1
2. -2x - 5
3. 20
Step-by-step explanation:
There was a glitch with brainly, so I added the explanation in screenshots.
Answer:
7,072
Step-by-step explanation:
136 times 52 = 7,072