3 years ago

Ahmad drove 638 miles in 11 hours. At the same rate, how long would it take him to drive 522 miles?

1 answer:

3 0

696 miles 522 miles---------------- = --------------- 12 hours x hours Cross multiply: 696x = 522*12 x = 522*12/696 Solve for x

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Tcecarenko [31]

Hope this helps but I think the answer could be : 157+25m=50+60m

4 0

3 years ago

eduard

Answer:

k = 10

Explanation:

The initial polynomial is:

$f(x)=3x^3+13x^2+19x+k$

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

$\begin{gathered} f(-2)=3(-2)^3+13(-2)^2+19(-2)+k=0 \\ 3(-2)^3+13(-2)^2+19(-2)+k=0 \end{gathered}$

Therefore, we can solve for k as follows:

$\begin{gathered} 3(-8)+13(4)+19(-2)+k=0 \\ -24+52-38+k=0 \\ -10+k=0 \\ -10+k+10=0+10 \\ k=10 \end{gathered}$

So, the value of k is 10

6 0

1 year ago

Kay [80]

Check the picture below.

make sure your calculator is in Degree mode.

5 0

3 years ago

solmaris [256]

Answer:

yes, 6÷1/3, which is 6×3 or 18

Step-by-step explanation:

4 0

3 years ago

BartSMP [9]

3x^3+5x+2 is the answer

5 0

3 years ago