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leva [86]
3 years ago
15

Karina is driving from her house to her cottage. If she drives at 10 kilometers per hour, she will arrive at 6 PM. If she drives

at 15 kilometers per hour, she will arrive at 4 PM. How fast must she drive in order to arrive at 5 PM
Mathematics
1 answer:
aev [14]3 years ago
5 0

Answer:

12.5 kilometers per hour

Step-by-step explanation:

(10+15)/2=25/2=12.5

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Given that 5W = 2P + 3R find the value of P when W = 4 and R = −4
Olenka [21]

Answer:

P = 16

Step-by-step explanation:

Given

5W = 2P + 3R ← substitute W = 4 and R = - 4 into the equation

5(4) = 2P + 3(- 4), that is

20 = 2P - 12 ( add 12 to both sides )

32 = 2P ( divide both sides by 2 )

16 = P

5 0
3 years ago
Explain why the expression 9x^3+1/2x^2+3x^-1 is not a polynomial
Nastasia [14]

Answer:

The given expression can't be expressed in polynomial form. Hence, it is not a polynomial.

Step-by-step explanation:

P(x,n) is a polynomial of nth degree if it is of the form,

P(x,n) = a_{0} + a_{1}x + a_{2}x^{2} + a_{3}x^{3} + ......... +a_{n}x^{n}

where n is a finite positive integer and n ∈ N

and 'a_{i}'s are fixed but otherwise arbitrary constants ∀  i = 0(1)n .

Now, the given expression is,

9x^{3} + \frac {1}{2x^{2}} + 3x^{-1}

which  doesn't fit in the above form. Hence, it is not a polynomial.

4 0
4 years ago
Write the equation 24x-4y=96 in slope intercept form
SVEN [57.7K]
\displaystyle 24x-4y=96\Leftrightarrow 4y=24x-96\Leftrightarrow y= \frac{24x-96}{4}\Leftrightarrow y=6x-24
3 0
4 years ago
Please help pic below
Sauron [17]
Well it depends what 'v' stands for

well all you need to do is replace the v with the number it stands for. For example if v=2 then the expression would be 4.2(2) - 5 - 6.5(2)
Then you use the order of operations. first you multiply

8.4 - 5 - 13

then you subtract from left to right 

8.4 - 5 = 3.4

3.4 - 13 =  -13 - 3.4 = -9.4

So IF v=2 (I used 2 as an example, V might not = 2 in your case) then the
answer will be -9.4  

I hope this helped you :3
8 0
4 years ago
2+2x7+(89 x0)+90+50-12 - 20=
aalyn [17]

Answer:

124

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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