Answer:25.12
Step-by-step explanation:
1 Simplify \frac{2}{5}s
5
2
s to \frac{2s}{5}
5
2s
.
\frac{1}{2}+\frac{2s}{5}=s-\frac{3}{4}
2
1
+
5
2s
=s−
4
3
2 Multiply both sides by 55.
\frac{5}{2}+2s=5s-\frac{15}{4}
2
5
+2s=5s−
4
15
3 Subtract 2s2s from both sides.
\frac{5}{2}=5s-\frac{15}{4}-2s
2
5
=5s−
4
15
−2s
4 Simplify 5s-\frac{15}{4}-2s5s−
4
15
−2s to 3s-\frac{15}{4}3s−
4
15
.
\frac{5}{2}=3s-\frac{15}{4}
2
5
=3s−
4
15
5 Add \frac{15}{4}
4
15
to both sides.
\frac{5}{2}+\frac{15}{4}=3s
2
5
+
4
15
=3s
6 Simplify \frac{5}{2}+\frac{15}{4}
2
5
+
4
15
to \frac{25}{4}
4
25
.
\frac{25}{4}=3s
4
25
=3s
7 Divide both sides by 33.
\frac{\frac{25}{4}}{3}=s
3
4
25
=s
8 Simplify \frac{\frac{25}{4}}{3}
3
4
25
to \frac{25}{4\times 3}
4×3
25
.
\frac{25}{4\times 3}=s
4×3
25
=s
9 Simplify 4\times 34×3 to 1212.
\frac{25}{12}=s
12
25
=s
10 Switch sides.
s=\frac{25}{12}s=
12
25
Done
Decimal Form: 2.083333