Answer: D) 10 jerseys
Step-by-step explanation:
Let j represent the number of jerseys and C for total cost
Local company eqn: C = 5.25j + 45
Online company eqn: C = 7.75j + 20
Set both sides equal to solve:
5.25j + 45 = 7.75j + 20
5.25j - 7.75j = 20 -45
- 2.5j = -25
j = 10
Therefore, the cost is the same for both companies when 10 jerseys are sold
The base length of the triangle is 10 ft. and the height of the triangle is 20ft.
Step-by-step explanation:
Height = base + 10
Area = 100 square ft
Area of a triangle= (1/2) (b) (h)
100 = (1/2) (b) (b + 10)
200 = b(b) + 10b
b(b) + 10b - 200 = 0
b(b) + 20b - 10b - 200 = 0
b ( b + 20) -10(b + 20) = 0
(b-10) (b+20) =0
b = 10 (or) b = -20
Here b is the length and cannot be negative.
So, b = 10ft
h = b + 10
h = 10 + 10
h = 20 ft.
The base length of the triangle is 10 ft. and the height of the triangle is 20ft.
Im pretty sure the answer would be 38 2/3
1 Multiply both sides by
4
x
4x.
−
3
=
−
3
2
×
4
x
−3=−
2
3
×4x
2 Simplify
3
2
×
4
x
2
3
×4x to
6
x
6x.
−
3
=
−
6
x
−3=−6x
3 Divide both sides by
−
6
−6.
−
3
−
6
=
x
−6
−3
=x
4 Two negatives make a positive.
3
6
=
x
6
3
=x
5 Simplify
3
6
6
3
to
1
2
2
1
.
1
2
=
x
2
1
=x
6 Switch sides.
x
=
1
2
x=
2
