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yarga [219]
3 years ago
11

Simplify the expression, if possible. State the excluded values,if any.

Mathematics
1 answer:
Mrac [35]3 years ago
5 0
5.            5x-5 
.       ------------------
.        10x²-25x+15

We can first factor 10x²-25x+15, it will turn into (2x-3) and (5x-5) 
  (if you need help on factoring, please leave a comment)

So the question will be like:
.            5x-5
.        ---------------                  
.       (2x-3)(5x-5)               The factored answer is the same as the original           .                                         number, so the factor answer can replace it.

We know 5x-5 on the top and 5x-5 on the bottom is the same, so they can cancel out, and it will become:
2x-3=0 

Then solve
2x-3=0 
2x=3
x=2/3

6.

Hope this helps! Please give me the Brainliest answer if you like it! If you have further questions, you can leave a comment or add me as a friend!

(if you need more explanations, please leave a comment)



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3 years ago
Bess has $2.80 in quarters and dimes. The number of dimes is 7 less than the number of quarters. Find the number of quarters and
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Answer:

3 dimes and 10 quarters

Step-by-step explanation:

If you add 7 dimes, then the number of dimes and quarters is the same, and the total increases to $3.50. A dime and a quarter have a value together of $0.35. Since there are equal numbers, the value $3.50 must be made up of some quantity of groups with a value of $0.35. That number of groups must be ...

... $3.50/$0.35 = 10

Thus, there are 10 quarters and 10-7 = 3 dimes.

_____

<em>Using an equation</em>

Let q represent the number of quarters. Then the amount Bess has is ...

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... 0.35q - 0.70 = 2.80

... 0.35q = 3.50 . . . . . add 0.70 . . . . . . . this should look familiar

... q = 3.50/0.35 = 10

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Two similar rectangular prisms have a scale factor of 3.4/5.1 .Find the ratio of their volumes. The answer choices are
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b. \:  \frac{8}{27}

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3 years ago
Find the slope from the points given: <br> (18, -5), (18, 20)
Ivahew [28]

Answer:

UNDEFINED

Step-by-step explanation:

change in y over the change in x is how you'd find slope, however, x is the same in both of these, making this a limitation not an equation, therefore the slope is undefined 18-18 = 0 -> Anything divided by zero as a slope is undefined.

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AysviL [449]
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       -22  -22

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x=10

4 0
3 years ago
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