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3 years ago

120 bacteria in a petri dish double every 30 minutes. Write an equation for the amount of bacteria after x hours.

Mathematics

1 answer:

Vladimir [108]3 years ago

3 0

Answer:

The answer should be 30x+120

Step-by-step explanation:

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the set of all real values of x such that xis greater than 9 and x is a member of the set integers can be represented using the

miskamm [114]

Answer:

Step-by-step explanation:

$\{x|x\in Z, x>9\}$

4 0

2 years ago

Solve for x: <br><br> 3x/2 - 10 = 2

Roman55 [17]

Answer:

2(2-10)/3=x

Step-by-step explanation:

2(2-10)=3x

2(2-10)/3=x

4 0

2 years ago

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Solve the equation 3x + 4 = 5x - 8

CaHeK987 [17]

Answer:

x = 6

Step-by-step explanation:

3x + 4 = 5x - 8

==> add 8 to both sides

in doing so we get 3x + 4 + 8 = 5x - 8 + 8

the -8 and the +8 cancels out and 4 + 8 = 12

we are left with 3x + 12 = 5x

==> subtract 3x from both sides

in doing so we get 3x - 3x + 12 = 5x - 3x

the 3x and -3x cancel out and 5x - 3x = 2x

we are left with 12 = 2x

==> divide both sides by 2

in doing so we get 12/2 which equals 6 and 2x/2x which leaves us with

6 = x

3 0

1 year ago

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The weight of animal hearts can range widely. An African bull elephant's heart can weigh as much as 61.73 pounds. A blue whale's

Bogdan [553]

The difference between a blue whale's heart and a African bull elephant heart is 2963.27 lbs. it will take 49 African bull elephant's heart to equal one blue whale's heart.

4 0

2 years ago

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A recent survey of

Serga [27]

Answer:

The total number of students in a survey is 300.

Let the number of junior male(JM) be x and the number of senior males(SM) be y.

Let the number of junior female(JF) be p and the number of senior males(SF) be q.

It is given that there are 160 males, 80 junior females, 130 seniors.

Since number of males are 160. So the number of females are,

$300-160=140$

Since number of junior females is 80.

$JF+SF=140\\80+SF=140\\SF=60$

Since number of seniors are 130.

$SM+SF=130\\SM+60=130\\SM=70$

Since number of males is 160.

$JM+SM=160\\JM+70=160\\JM=90$

Therefore, the table and venn diagram is shown below.

6 0

3 years ago