Does anyone know how to do this?

Mathematics

1 answer:

RSB [31]3 years ago

6 0

Answer:

The best choice is the last choice.

Step-by-step explanation:

There are several errors here. The first is in the first step, where the sum somehow magically becomes a product.

The next is in the next step where the product magically becomes a sum again, and the factor of 2 is distributed over the sum terms.

Finally, the terms containing "ab" and "a" are combined, even though they are not "like" terms. This is the error that has a description among the answer choices. (Blue markup)

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<span> Step 1: subtract X from both sides.

0.5x-6-x=x+0.05-x

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Ket [755]

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Step-by-step explanation: So first make the number of people who ran the marathon and the number of people who finished the marathon into a ratio

1200:4800

then make that into a fraction, 1200/4800

then make the percent of people who reached the marathon into a fraction, using 100 as the denominator and a variable as the numerator.

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then cross multiply.

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