Answer: -2y < -20
Step-by-step explanation:
Answer:
100 bricks are required to construct the wall.
Step-by-step explanation:
All calculations should be done with unit in centimetres.
volume of the wall = length * width * height
= 15 * 20 * 200
= 60000 cm³
one brick volume = length * width * height
= 15 * 8 * 5
= 600 cm³
So to fill the entire wall with x walls: volume of wall / one brick volume
→ 60000 / 600
→ 100 bricks
Answer:
7x5
Step-by-step explanation:
i took the edgenuity test lol
Answer:
Isolate the variables in all cases. Note the equal sign, what you do to one side, you do to the other.
a) 3x = 18
Isolate the variable, x. Divide 3 from both sides:
(3x)/3 = (18)/3
x = 18/3
x = 6
b) 2x = 9
Isolate the variable, x. Divide 2 from both sides:
(2x)/2 = (9)/2
x = 9/2
x = 4.5
c) (x/5) = 7
Isolate the variable, x. Multiply 5 to both sides:
(x/5)(5) = (7)(5)
x = 7 * 5
x = 35
d) x/2 = 6.5
Isolate the variable, x. Multiply 2 to both sides:
(x/2)(2) = (6.5)(2)
x = 6.5 * 2
x = 13
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