Answer:
48
Step-by-step explanation:
80 divided by 4 is 20 so thats 1/4 of 80
80-20=60
1/5 of 60 = 12
20+12=32
80-32=48
It would be true. (4+2)(3^2)-6+2*3=54 is true
Hope this helps :)
can you please make this the brainiest answer it would really help
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Answer:
Step-by-step explanation:
the perimeter is : p = 2(x+y)..... x : width y : length
you have the system ; 2(x+y) = 252.......(1)
x = (2/7) y ...........(2)
y > x ....(3)
Substitute x = (2/7) y into (1) and simplifiy and solve for y :
(2/7) y + y = 126
(2y+7y)/7 = 126
9y = 882
y = 98 m ( the length )
Answer: x^2+y=4 and -y-1 are not linear equations.
Step-by-step explanation:
The exponent in x^2 indicates this is a polynomial equatuon, because when graphed, it doesn't form a line.
In -y-1, there is no given x value. y is an output of a solved x equation, so without an x, it cannot be completed. Equations depend on a number that can be plugged in. When graphed, it appears as an error.
-x-y=2 is linear because it can be rearranged to solve for y and can be graphed as linear.
x=5 is linear because it gives an input value, and shows that the output value when solved is 0 (no y means it will always be 0). When graphed, it shows a straight line, which is linear.
Answer:
It should be A
Step-by-step explanation:
The area of the base is 15.4m, and volume=base*height, so v=15.4*15.6, v=240.24, BUT since it's a pyramid, you have to divide by 3, which'll give you 80.08, if you round to the nearest tenth, you'd get 80.1
