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3 years ago

6x + 3x = combine like terms

Mathematics

2 answers:

zvonat [6]3 years ago

5 0

Answer:

Step-by-step explanation:

6x + 3x

6 + 3 = 9

add the x and you get 9x

i hope this helps

Law Incorporation [45]3 years ago

5 0

Answer:

6x + 3x = 9x

Step-by-step explanation:

6 and 3 have the same coefficient meaning you can combine them and add them to get 9x.

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A machine packs 2/5 of a box every 1/2 minute. What is the number of boxes per minute packed? Why?

Alla [95]

If it is packed 2/5 in 1/2 minutes

1 minute =2/5*2=4/5 or 0.8 boxes/min

4 0

3 years ago

The number of bacteria in a refrigerated food product is given by N ( T ) = 22 T 2 − 123 T + 40 , 6 < T < 36 , where T is

antoniya [11.8K]

Answer:

$N(T(t)) = 1408t^2 - 385.6t - 105.52$

Time for bacteria count reaching 8019: t = 2.543 hours

Step-by-step explanation:

To find the composite function N(T(t)), we just need to use the value of T(t) for each T in the function N(T). So we have that:

$N(T(t)) = 22 * (8t + 1.7)^2 - 123 * (8t + 1.7) + 40$

$N(T(t)) = 22 * (64t^2 + 27.2t + 2.89) - 984t - 209.1 + 40$

$N(T(t)) = 1408t^2 + 598.4t + 63.58 - 984t - 169.1$

$N(T(t)) = 1408t^2 - 385.6t - 105.52$

Now, to find the time when the bacteria count reaches 8019, we just need to use N(T(t)) = 8019 and then find the value of t:

$8019 = 1408t^2 - 385.6t - 105.52$

$1408t^2 - 385.6t - 8124.52 = 0$

Solving this quadratic equation, we have that t = 2.543 hours, so that is the time needed to the bacteria count reaching 8019.

4 0

3 years ago

I need help with this... plz

Artemon [7]

Answer: 11,600

you multiply 58,000 by 0.8 and you’d get 46,400. then you would subtract that number by 58,000 to get the answer of 11,600.

7 0

3 years ago

Is 6^-2 positive or negative?

serious [3.7K]

The 6 is a positive and the 2 is a negative. Basically the answer to the equation would be a negative

6 x -6 = -36

Hope this helps you

-AaronWiseIsBae

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3 years ago

On a certain day, $1 is worth 30.23 Russian rubles. Omar has $75. How many rubles will he get in exchange?

meriva

2,267.25 that is the answer
to find it yourself u would multiply 30.23 by 75

6 0

3 years ago