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Ray Of Light [21]
3 years ago
7

Which is the correct algebraic expression after combining like terms? 6+8x-7-x

Mathematics
2 answers:
kiruha [24]3 years ago
8 0
The answer would be A.) 7x-1
Murrr4er [49]3 years ago
6 0

Answer:

A.) 7x-1

Step-by-step explanation:

It would be this because 8x-x = 7x and 6-7 = -1, so if you combined them you should get 7x - 1

6 +8x -7 -x

8x -x = 7x

6-7 = -1

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1/2

Step-by-step explanation:

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Jeffrey had both chocolate cake and coconut cake at his birthday party. There were 25 people at the party, and 20 of them picked
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2 years ago
Work out 12+8÷(9-5) 0.018÷0.06 Express as single fraction 5/7÷2/5
Anettt [7]

Step-by-step explanation:

I don't know if the first set of numbers is all in one set, but I'll do my best to give you an answer.

Really all you need to do is use PEMDAS for the first question.

(Parentheses, exponents, multiply, divide, add, subtract. In that order)

1 2 + 8 \div (9 - 5) \\ 12 + 8 \div 4 \\ 12 + 2 \\ 14

Then to simplify that fraction next to it, notice that 0.018 is 3x 0.06.

that's a 3:1 ratio, so it ends up simplifying to this:

\frac{3}{1}

Lastly, to solve the division of that fraction. If you divide by a fraction, you multiply whatever it's dividing by its inverse.

So...

\frac{5}{7}  \div  \frac{2}{5}  \\  \frac{5}{7}  \times  \frac{5}{2}  \\  \frac{25}{14}

7 0
3 years ago
The equation can be used to find the length of AB
dmitriy555 [2]
You can use
Sine25=9/c
Or
Sin25/9=sine 90/c
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