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4 years ago

A bacteria culture starts with 100 bacteria and doubles in size every half hour. (a) how many bacteria are there after 4 hours?

Mathematics

1 answer:

Savatey [412]4 years ago

5 0

19200 all you have to do to figure this out is multiply 100 times 8 since the is 8 halfs in 4 hours.
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The average grade Jared received on 4 tests was 94. If he drops his lowest test grade of 85, what will his new average be?

soldier1979 [14.2K]

Answer:

D. 97

Step-by-step explanation:

The reason being is that his average should only be going up if he is dropping his lowest test score. And the only answer that shows his score going up is D.

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3 years ago

You roll 2 number cubes whats the probability of it being 7

mars1129 [50]

Total number of possible outcomes = 36

Total number with sum 7 =5
{1, 6} {2, 5} {3, 4}, {5, 2}, {6, 1}

P(sum 7) = 5/36

Answer: 5/36

4 0

4 years ago

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Murals in a school are painted by its grade 6 and grade 7 students.

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

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3 years ago

Solve the exponential equation by the method of relating the bases, first rewriting the equation in the form

Nookie1986 [14]

Answer:

x = 1/3

Step-by-step explanation:

Both bases can be written as powers of 6.

36^x = (1/6)^(x-1) . . . . . . given

(6^2)^x = (6^-1)^(x -1) . . . . . bases as powers of 6

6^(2x) = 6^(-x+1) . . . . . . . . . simplify exponents

2x = -x +1 . . . . . . . . . . . . . . . .equate exponents of the same base

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x = 1/3 . . . . . divide by 3

6 0

3 years ago

Solve for c.<br> -c/2+43 = 50

noname [10]

$\huge\text{Hey there!}$

$\mathsf{-\dfrac{c}{2}+43=50}$

$\large\text{SUBTRACT 43 to BOTH SIDES}$

$\mathsf{-\dfrac{c}{2}+43-43=50-43}$

$\large\textsf{CANCEL out: 43 - 43 because that gives you 0}$

$\large\textsf{KEEP: 50 - 43 because it helps solve for the c-value}$

$\mathsf{50 - 43 = \bf 7}$

$\large\text{NEW EQUATION: }\mathsf{-\dfrac{c}{2}=7}$

$\large\textsf{MULTIPLY }\mathsf{\dfrac{2}{-1}}\large\textsf{ to BOTH SIDES}$

$\mathsf{\dfrac{2}{-1}\times-\dfrac{c}{2}= \dfrac{2}{-1}\times7}$

$\large\textsf{CANCEL out: your RIGHT SIDE of the equation because that gives}\\\large\textsf{you 1}$

$\large\textsf{KEEP: }\mathsf{\dfrac{2}{-1}\times7}\large\textsf{ because that helps solve for the c-value}$

$\uparrow\large\text{SIMPLIFY THE EQUATION ABOVE \& YOU HAVE YOUR}\\\large\text{C-VALUE}\uparrow$

$\boxed{\boxed{\large\text{ANSWER: \huge\bf c = -14}}}\huge\checkmark$

$\large\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

5 0

3 years ago