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mylen [45]
3 years ago
14

Solve this polynomial:

Mathematics
1 answer:
dangina [55]3 years ago
7 0
Answer: 4ab+10b



2.5ab+14b+1.5b-4
4ab+14b-4b
4ab+10b
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Solve 5 over x plus 8 equals 3 over x for x and determine if the solution is extraneous or not.
Maurinko [17]
\frac{5}{x+8}=\frac{3}{x}\ \ \ Domain\ D:x+8\neq0\to x\neq-8\ and\ x\neq0\\\\cross\ multiply\\\\5(x)=3(x+8)\ \ \ |use\ distributive\ property\ a(b+c)=ab+ac\\\\5x=3(x)+3(8)\\\\5x=3x+24\ \ \ \ |subtract\ 3x\ from\ both\ sides\\\\2x=24\ \ \ \ |divide\ both\ sides\ by\ 2\\\\\huge\boxed{x=12\in D}
8 0
3 years ago
Find the selling price of a $20 item after a 20% markup.
nevsk [136]

Answer:

$24

Step-by-step explanation:

For a markup, use the formula <em>a = ( 1 + p ) × w. </em>

!!! Remember, <em>a </em>is the selling price, and <em>w </em>is the original price !!!

!!! The <em>p </em>is the percent in decimal form. 20% as a decimal is 0.20 (move the decimal twice to the left) !!!

<em />

Inserting the values, it should look like <em>a = ( 1 + 0.20 ) × 20 </em>

<em>a = 1.20 × 20 </em>

<em>a = 24</em>

<em />

Hence, the new selling price is $24.

Hope this helps! :)

4 0
3 years ago
Which phone has a better price plan: IPhone 11 Pro or Samsung Galaxy S10? Why? What are the price plans? Brainliest for the best
jok3333 [9.3K]

Answer:

Samsung S10

Step-by-step explanation:

        Price Plans

iPhone 11 Pro: $41.67/mo.

Galaxy S10: $31.25/Mo

<u>_________________</u>

         Why?

<em>The Galaxy S10 has a 6.1-inch screen that's slightly larger than the iPhone 11 Pro's 5.8-inch display. It's also sharper than Apple's iPhone, or at least it should be on paper. ... But having a higher resolution doesn't always mean one screen is better than the other.</em>

7 0
3 years ago
Read 2 more answers
Solve for slope y=4x+6
Semmy [17]

Answer:

4

Step-by-step explanation:

y = mx+b where m is slope so the slope is 4

3 0
3 years ago
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Can somebody please help me with this question??:,,)
MatroZZZ [7]

Answer:

30 and 60

Step-by-step explanation:

1. "The measure of angle is twice the measure of its complement" means that one angle is twice the amount of another angle, and when both of them are added together, they equal 90°.

2. 60 is twice the amount of 30, and when both of them are combined, they equal 90°.

Therefore, the answer is 30 and 60.

8 0
2 years ago
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