I'm not to sure but this is what I got....
1. 2=7x+7
-7 -7
-5/7= 7x/7 What you do to one side you always do to the other.
x = -5/7
2. 3/5 = 5y/5
y = 3/5
Hope it helped! : )
Answer:
Step-by-step explanation:
Volume = 4πr³/3
Solid shape is a sphere. r ----> radius
The mass of the stand will be 21165 g.It is found as the product of the density and the mass of the stand.
<h3 /><h3>What is mass?</h3>
Mass is a numerical measure of inertia, which is a basic feature of all matter. It is, in effect, a body of matter's resistance to a change in speed or position caused by the application of a force.
The frustum shape volume is;
From the similarity;
The volume of the second section;
The volume of the stand is ;
Mass of stand = volume of stand × density of the stand
Mass of stand = 249 cm³ × 85 85 g/cm³
Mass of stand = 21165 gm
Hence, the mass of the stand will be 21165 g
To learn more about the mass refer to the link;
brainly.com/question/13073862
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Answer:
The number is 15.
Step-by-step explanation:
If you look closely, the sum of any two adjacent boxes in the bottom row gives the number in the top row. For example, the sum of the first two boxes 27 and 18 gives the number 45.
27+18 = 45
Similarly,
21+x = 36 (Third and fourth boxes in bottom row)
Solving, we get x=15.
We can confirm this by checking with the last two boxes.
x+13 = 28
x=15
So, the answer is 15.
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