Answer:
9600 cm³
Step-by-step explanation:
volume of water=60×80×25
volume of water +volume of rock=60×80×(25+2)=60×80×25+60×80×2
volume of rock=60×80×25+60×80×2-60×80×25=60×80×2=9600 cm³
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
And then simplify that to 7 = x.
So the length of a rectangle would be 28 cm, and the width would be 7.
So to find the area, just multiply length by width.
28*7 = 196 square cm
So the rectangle's area is 196 square cm.
I hope I helped!
Answer:
y=1/7 x +22
Step-by-step explanation:
y=mx+c
M is the same as parallel
Put the numbers in to find c
y=1/7x+c
21=-1+c
22=c
Answer:
Yes, it is an Arithmetic Sequence
Step-by-step explanation:
![31 - 37 = - 6 \\ \\ 25 - 31 = - 6 \\ \\ 19 - 25 = - 6 \\](https://tex.z-dn.net/?f=31%20-%2037%20%3D%20%20-%206%20%5C%5C%20%20%5C%5C%2025%20-%2031%20%3D%20%20-%206%20%5C%5C%20%20%5C%5C%2019%20-%2025%20%3D%20%20-%206%20%5C%5C%20)
Since the difference between any two consecutive terms is same (- 6). Hence, 37, 31, 25, 19 is an Arithmetic sequence.
Answer:
20 + 3x ≥ 50
Step-by-step explanation:
After x days, John will have added 3x points to his total. The new total will be ...
20 +3x
We want that value to be at least 50, so we use the symbol "greater than or equal to" to express that relationship:
20 +3x ≥ 50
_____
Brainly makes available a table of math symbols so you can choose the appropriate one to use in your expression. The number 2 is not the same as the symbol ≥. Using incorrect symbols makes it very difficult to tell what the intended problem is.