10 and 4
4 - 2 = 2
10 + 2 = 12
Answer:
Jessi's work 12a = 6 12a/12 = 6/12 a=1/2
Step-by-step explanation:
The first step is to get a by itself so 6 must be divided by 12 which leads to the answer 1/2.
I don't know how to solve 11 but I guess I can solve 12 so I think those are the answers:
12.
(4, 53)
(5, 85)
Answer:
The answer to your question is ∠Z = 119°
Step-by-step explanation:
Data
∠W = 41°
∠Y = 81°
∠Z = ∠X = ?
Process
To solve this problem use the law that states that the sum of the internal angles in a quadrangle equals 360°.
1)
∠W + ∠Y∠ + ∠X + ∠Z = 360°
2.- Simplify
∠W + ∠Y + 2∠Z = 360
3.- Substitution
41° + 81° + 2∠Z = 360
4.- Solve for Z
2∠Z = 360 - 41 - 81
2∠Z = 238
∠Z = 238/2
∠Z = 119°
The temperature of coffee 10 minutes after it was poured (120 F) will help in solving the constant “a”.
<span>120 = 120(2 ^ 10a) + 60 </span>
<span>2 ^ -1 = 2 ^ 10a </span>
<span>a = -1/10 </span>
<span>The temperature of coffee 30 minutes after it was poured is: </span>
<span>F = 120 ( 2 ^ -30/10) + 60 </span>
<span>F = 120 * 1/ 8 + 60 </span>
<span>F = 15 + 60 </span>
<span>F = 75</span>
