Mathematics
28.10.2021 22:43
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Write an equation and solve it. The difference between a number and three-fourths
Write an equation and solve it.
The difference between a number and three-fourths is one-half.
Which equation and solution is correct?
3 1
1
= x; X=
4 2
4
X-=-X =
1 3
2 4'
3
4
1 1
X=
2 4.
X --=
3 1
42
x=11
4
Show Answers
Which equation and solution is correct?
3 1
1
= x; X=
4 2
4
X-=-X =
1 3
2 4'
3
4
1 1
X=
2 4.
X --=
3 1
42
x=11
4
donbright100
5,0(41 marks)
Perimeter P = 2L + 2W = 88
We also have L = W + 4
Now substitute this into the first equation and get
2(W + 4) + 2W = 88
2W + 8 + 2W = 88
4W + 8 = 88
4W = 80
W = 20 cm
L = 24 cm
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