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3 years ago

Can someone show me how to factor this? 5k-35

Mathematics

2 answers:

kaheart [24]3 years ago

6 0

Sure.
Can you find a number that goes into both terms, 5k and 35 ?
How about 5 ?

(5k - 35) = 5 times (k - 7) .

torisob [31]3 years ago

5 0

$5k-35=5(k-7)$

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The population of bacteria in a culture doubles every 14 hours. How long will it take for

Snezhnost [94]

Answer: 22 hours 11 minutes

Step-by-step explanation:

$P=P_o\cdot e^{(kt)}\\\\\text{Since the initial population is doubled in 14 hours, then:}\\2P_o=P_o\cdot e^{k\cdot 14}\\2=e^{14k}\\ln\ 2=ln\ e^{14k}\\ln\ 2=14k\\\\\dfrac{ln\ 2}{14}=k\\\\0.0495=k\\\\\\\text{Now that the k-value has been determined, we can find the time when the}\\\text{population is tripled:}\\3P_o=P_o\cdot e^{0.0495t}\\3=e^{0.0495t}\\ln\ 3=ln\ e^{0.0495t}\\ln\ 3=0.0495t\\\\\dfrac{ln\ 3}{0.0495}=5\\\\22.19=t\\\\22\ hrs +0.19\ hrs$

$22\ hours + \bigg[\dfrac{19}{100}=\dfrac{x}{60}\bigg]\\\\22\ hours + 11\ minutes$

4 0

3 years ago

Holly missed 7 of 185 school days this year. Approximately what percent of school days was Holly in attendance?

Alexandra [31]

185-7=178
So 178÷185=0.9621621
0.96×100=96%
OR APPROXIMATELY 96 percent

7 0

3 years ago

Can someone help me with this? Right answer gets brainliest!! :)

Sedbober [7]

I have 2 answers in mind

Answer #1:

$\frac{y}{z}$

Step-by-step explanation:

quotient means the answer to 2 things being divided so the quotient of y and z would be $\frac{y}{z}$ because there is no numerical value.

Answer #2:

Step-by-step explanation:

Usually, when a letter is left by itself in an equation it usually has an invisible one in front of it. so when dividing y by z it would equal 1/1 which is equal to one.

Hope this helps :)

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3 years ago

Is 3(4x-2) and 12x-2 equivalent?

Korolek [52]

Answer:

Step-by-step explanation:

3(4x - 2) = 12x - 4 ≠ 12x -2

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3 years ago

Read 2 more answers

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Afina-wow [57]

Answer:

figure of cuboid

volume of cuboid=l×b×h

Step-by-step explanation:

(10×3×4)in cube=120incube

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3 years ago