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blsea [12.9K]
3 years ago
7

What are the steps of adding and subtracting a fraction?

Mathematics
1 answer:
Darina [25.2K]3 years ago
6 0

Step-by-step explanation: To add and subtract fractions with the same denominator, or bottom number, place the 2 fractions side by side. Add or subtract the numerators, or the top numbers, and write the result in a new fraction on the top. The bottom number of the answer will be the same as the denominator of the original fractions.

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How do I start the equation?
Mariana [72]

Answer:

Step-by-step explanation:

Well they add up to a straight line which would be 180 degrees. That means 40, 6x+2 and 90 all add up to 180

40 + 90 + 6x + 2 = 180

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2 years ago
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Help needed please
gayaneshka [121]
A. No matter how many times you spin it, the number of outcomes never changes - you'll always get 1 of 4 colors. Hope I could help!
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3 years ago
Evaluate √7x(√x−7√7) please Show your Work thanks.
Veronika [31]

 expand by multiplying <span><span>√<span>7x</span></span>⋅<span>√x</span></span> and <span><span>√<span>7x</span></span>⋅7<span>√7</span></span> 

<span><span>√<span>7x</span></span><span>(<span>√x</span>−7<span>√7</span>)</span>=<span>√<span>7x</span></span>⋅<span>√x</span>−<span>√<span>7x</span></span>⋅7<span>√7</span></span>

<span>You can make√<span>7x</span></span> into <span><span>√7</span>⋅<span>√x</span></span>

<span><span>=<span>√7</span>⋅<span><span>√x</span>⋅<span>√x</span></span>−<span>√7</span>⋅<span>√x</span>⋅7⋅<span>√7</span></span><span>=<span>√7</span>⋅<span><span>(<span>√x</span>)</span>2</span>−<span><span>(<span>√7</span>)</span>2</span>⋅<span>√x</span>⋅7</span></span>

since squaring and square roots are opposite, they cancel

<span><span>=<span>√7</span>⋅x−7⋅<span>√x</span>⋅7</span>=x√7−49√x
I hope the square root symbols worked. I had to copy and paste from word. Hopefully this is what you needed!
</span>
8 0
3 years ago
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Many mechanics advised people not to drive their cars more than 5,000 miles between oil changes kaci has driven her car 3450 mil
Verizon [17]

Answer:

See explanation!

Step-by-step explanation:

We know that the maximum miles allowed before oil change is 5,000miles (<u>thus Kaci can drive less or up to 5,000 miles but not more</u>).

Kaci has already driven 3,450miles since last oil change.

Inequalities are typically employed to show a relating or comparative relationship between expressions and can be identified by the sybolism of less, more or/and equal to (i.e. , > , \leq, \geq ).

Let us denote the miles Kaci can drive before oil changing again by x, then we can write the following inequality:

3450+x\leq 5000

solving for the remaining miles x allowed

3450+x\leq 5000\\x\leq 5000-3450\\x\leq 1550

Thus Kaci can drive up to and including 1550 miles before chaging car oil again.

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3 years ago
Alex was playing a board game with six-sided die. She tossed the die for her turn. What is P(5)?
ycow [4]

Answer:

probability of getting a 5

Step-by-step explanation:

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3 years ago
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