X=-1/9 I used a calculator
<span>This is not really a maths question, but rather a question about geography and climate: Sahara is a very dry place without any resources that gets very hot, especially during the day. If you camp on Sahara, you will not be able to find food or water, and you will be struggling with hiding from the heat. This would be very dangerous and you could potentially die - so you should not attempt to camp on the Sahara desert. </span>
I think it was the same number
Answer:
56 music files
Step-by-step explanation:
From the above question:
Let the number of music files
Arely has = x
Valerie has = y
Arely has 4 fewer than twice as many music files as Valerie.
x = 2y - 4
They have a combined number of 86 music files.
x + y = 86
We substitute 2y - 4 for x in the above equation
2y - 4 + y = 86
3y - 4 = 86
3y = 86 + 4
3y = 90
Divide both sides by 3
3y/3 = 90/3
y = 30
Hence, Valerie has 30 music files.
The number of music files that Arely has is calculated as:
x = 2y - 4
x = 2(30) - 4
x = 60 - 4
x = 56
Arely has 56 music files
104,547 to 3 significant figures is just 104,500
