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Ahat [919]
3 years ago
14

Is my answer correct

Mathematics
1 answer:
Leto [7]3 years ago
4 0

mayhaps it is right and wrong is subjective

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A biker’s speed is 1.5 times faster than a walker’s speed. They start moving simultaneously in the same direction from the same
worty [1.4K]
Let the walker’s speed be W, then the biker’s is W+1.5W=2.5W. Difference in speed is 1.5W. Distance=speed times time, so 12.5=1.5W×1.5=2.25W, and W=12.5/2.25=1250/225=50/9=5.56 mph. The biker’s speed is 2.5W=125/9=13.89 mph to 2 Dec places.
(Note: “1.5 times faster than a walker’s speed” could not reasonably mean the biker’s speed=1.5W because this would give W=16.67 mph, which is very fast for a runner, let alone a walker (!), and a biker’s speed of 25mph.)
5 0
3 years ago
Read 2 more answers
Factor the polynomial. 2x3 + 4x2 + 8x
Wewaii [24]
The answer is c because you is multpliying 
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3 years ago
If you buy 17 books and they cost $15 and you buy 12 magazines and they cost four dollars how much did you spend
stepan [7]

you spent $303.

because 17 times 15 is 255. then 12 times 4 is 48.

255 plus 48 is 303.

7 0
3 years ago
1. Compare the strengths and weaknesses of the horizontal and vertical methods for adding and subtracting polynomials. Include c
mrs_skeptik [129]
1.Each method works differently the angles inside them is what matters.

2. <span> Manipulating algebra tiles can help people solve linear equations

3.</span><span>Distribute each term of the first polynomial to every term of the second polynomial. Remember that when you multiply two terms together you must multiply the coefficient (numbers) and add the exponents. But with Integers you multiply two integers with different signs

4.So you know how </span>
A monomial is a number, a variable or a product of a number and a variable.


<span>multiply each term in one polynomial by each term in the other <span>polynomial

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7 0
3 years ago
What is the simplified form for the following expression <br><br> -(3y-9z)
Sonja [21]

The answer is: -3y+9z

This is because you simply switch the sign for every number in the parentheses.

Hope this helps!

5 0
3 years ago
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