Answer:
(a) = 0.32 or 8/25
(b) = 0.48 or 12/25
(c) = 4 Boards
Step-by-step explanation:
(a):
0.8 x 2/5
8/10 x 4/10
(8 x 4) / (10 x 10)
(32) / (100)
0.32 or 8/25
(b):
0.8 x 3/5
8/10 x 6/10
(8 x 6) / (10 x 10)
(48) / (100)
0.48 or 12/25
(c):
0.8 x 5
8/10 x 50/10
(8 x 50) / (10 x 10)
(400) / (100)
4 Boards
2v + 18 = 16 - 4(v + 7)
Simplify by removing the parenthesis.
2v + 18 = 16 - 4v - 28
Now, simply add 4v to both sides.
2v + 4v + 18 = 16 - 28
Simplify.
6v + 18 = -12
Now, subtract 18 from both sides.
6v = -12 - 18
Simplify.
6v = -30
Finally, divide both sides by 6.
6v ÷ 6 = 30 ÷ 6
Simplify.
v = 5
~Hope I helped!~
Answer:
320
Step-by-step explanation:
r = 4, so 2 x 4 = 8.
s = 6 and t = 3, so 6 x 3 = 18. 18 squared is 324.
u = 12, so 8 + 324 - 12, which equals 320.
