Answer:
Step-by-step explanation:Use the square root on both sides:
x
–
5
=
±
√
3
Add 5 to both sides:
x
=
5
±
√
3
This breaks into two equations:
x
=
5
+
√
3
and
x
=
5
−
√
3
Use the square root on both sides:
x
–
5
=
±
√
3
Add 5 to both sides:
x
=
5
±
√
3
This breaks into two equations:
x
=
5
+
√
3
and
x
=
5
−
√
3
Answer:
Getting through ratio method
100-20=80 percent have to pay
18:80
<em>x</em>:100
cross multiply
80 x <em>x=1</em>8 x 100
80x=1800
x=1800/80
x=22.5
So the original price was $22.50
Step-by-step explanation:
The shoes after a 7.5% tax is going to be 215 200/7.5 + 200 = C
Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
In the right triangle ABC
Applying the Pythagorean Theorem
substitute the given values
solve for BC
1/4q = 3w + 3...multiply both sides by 4
q = 4(3w + 3)
q = 12w + 12 <===
