Using cosine law and considering the angle ABC is 89 you can deduce that AC is 6.3
6<6.3
So the largest possible integer is 6
Answer:
longest side=3.6
let ratio 3:5:6:9be 3x,5x,6xand9x
perimeter= sum of all side
9.2=3x+5x+6x+9x
9.2=23x
x=9.2÷23
x=0.4
9x=9×0.4=3.6
6x=6×0.4=2.4
5x=5×0.4=2
3x=3×0.4=1.2
Answer: £30.20
We can say, 4kg of copper is mixed with 1kg of Zinc to make 5 kg of brass.
So to make 7 kg of brass we need to find out how much kg is copper and zinc mixed. Just increase one kg in both the weight, 5kg of copper and 2kg of zinc makes it 7kg of brass. (Technical thinking)
Now that we know the proportions of the metals so find out the costs of each kg of it.
Copper: 1 kg costs £5
5kg costs- 5*5 --> £25
Zince: 1 kg costs £3.20
2kg costs- 3.20 * 2 --> £5.20
Now add them, £5.20 + £25 --> £30.20
So, the cost of 7kg of brass is £30.20
Answer: 5.09 units
Step-by-step explanation:
Given
Coordinates of Old oak tree are (3,7)
Coordinates of granite boulder are (-2,6)
Distance between them is given by distance formula i.e.

Distance between them is

36x = 15480
x = 15480/36
x = 5160/12
x = 2580/6
x = 860/2
x = 430
Zach made equal payments of $430