Answer:
The answer to your question is: C = 0.79a + 1.89r
Step-by-step explanation:
Data
Cost = C
apps = $0.79 = a
ringtones = $1.89 = r
C = 0.79a + 1.89r
<h2>
The total number of ways = 1728 ways</h2>
Step-by-step explanation:
Given,
Math books = 4, History books = 3, Chemistry books = 3 and
Computer science books = 2
To find, the total number of ways = ?
∴ The total number of ways = 4! × 3! × 3! × 2!
= 24 × 6 × 6 × 2
= 24 × 72
= 1728 ways
∴ The total number of ways = 1728 ways
Step 1: Simplify both sides of the equation.
3
x
−
1
=
1
−
3
x
3
x
+
−
1
=
1
+
−
3
x
3
x
−
1
=
−
3
x
+
1
Step 2: Add 3x to both sides.
3
x
−
1
+
3
x
=
−
3
x
+
1
+
3
x
6
x
−
1
=
1
Step 3: Add 1 to both sides.
6
x
−
1
+
1
=
1
+
1
6
x
=
2
Step 4: Divide both sides by 6.
6
x
6
=
2
6
x
=
1
3
Answer: (A)
Packing material is required to fill the box = 
Step-by-step explanation:
The box is shaped like a rectangular prism
base area = 9/10 square foot
height = 1/3 foot
Volume of a prism = base area X Height
=
Step one: 200-87.96=112.04
Step two: 112.04÷30≈3.7
Step three: 3.7↔3
Answer: Staci can buy 3 shirts
