Answer:
Each eraser costs $5.00.
Step-by-step explanation:
In the question, it says that John had bought a $5.00 magazine. So, we already know that he used $5.00 for a magazine, and used up exactly $25.00. This must mean that he used $5.00 for each eraser because he used up $20.00 for four erasers. 4x5 = 20.
8 + 5(x - 3)³
subtitute x = 9 to the expression:
8 + 5 · (9 - 3)³ = 8 + 5 · 6³ = 8 + 5 · 216 = 8 + 1,080 = 1,088
5^(x+3)=25^(x-2)
Apply the exponent rule ( 5 ^2 = 25, so remove the 5 and replace 25?with 2)
x + 3 = 2(x-2)
Simplify:
X + 3 = 2x -4
Add 4 to both sides:
X + 7 = 2x
Subtract x from both sides
X = 7
Answer: x = 7
Answer:
the value is k=
Step-by-step explanation:
True, can I have brainiliest