Answer:
<h2>x = -7 or x = 1</h2>Step-by-step explanation:
I need help, which one is it?
1 answer:
Answer:
B. 3x ^3√648x^4y^8
Step-by-step explanation:
steps in picture
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Answer:
8.4 dollars
Step-by-step explanation:
The error is in the resolution of the proportion. In fact, the initial proportion is correct:
where x is the total cost. However, the following step of the resolution is wrong. In fact, the correct resolution is the following:
- Multiplying by x on both sides:
- Multiplying by 3.5 no both sides:
And now we can find x:
So, the total cost is 8.4 dollars.