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Reil [10]
4 years ago
11

A deadly bacteria doubles in size every 3 hours. If there were initially 14 spores present, how long will it take for the number

of bacteria to increase to 1799 spores?
Mathematics
1 answer:
AfilCa [17]4 years ago
4 0
First, we have 14 spores. If they double in 3h, we have 28. When they double in 3h, we have 56, then 112 in the next 3h and so on. To reach the 1799 spores, 24 hours need to pass
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To celebrate getting a new job, Marco went out for a dinner that cost $100. If the localsales tax is 6% and Marco left a 15% tip
Art [367]

Answer:

$121

Step-by-step explanation:

So if the meal cost $100, finding out the percentages is pretty easy.

The sales tax is 6%, and 6% of 100 is simply 6.

15% of 100 is simply 15.

So, adding the total cost of the meal plus the sales tax plus the tip is simply $121.

4 0
3 years ago
Tell me the solution of this question​
lorasvet [3.4K]

Hii

hope this will help

4 0
3 years ago
Jessie designed a sculpture that is shaped like a circle. The circumference of the sculpture is 10π meters. Which measurement is
BlackZzzverrR [31]

Answer:

25πm²

Step-by-step explanation:

Circumference of the circular sculpture = πd

d is the diameter

Given

Circumference = 10π metres

Substitute into the formula

10π = πd

10 = d

d = 10m

Area of the sculpture = πd²/4

area of the sculpture = π(10)²/4

area of the sculpture = 100π/4

area of the sculpture = 25π m²

Hence the measurement closest to the area of the sculpture in square meters is 25πm²

6 0
3 years ago
Find the area of the trapezoid!!!! PLEASE HELP!!!!
san4es73 [151]

ANSWER

32 \sqrt{3}  {ft}^{2}

EXPLANATION

The area of a tra-pezoid is half times sum of the bases times the vertical height.

From the diagram ( see attachment) we use the Pythagoras Theorem to obtain,

{x}^{2}  +  {(4 \sqrt{3}) }^{2}  =  {8}^{2}

{x}^{2}  +  48  =  64

{x}^{2}  =  64 - 48

{x}^{2}=16

x =  \sqrt{16}  = 4ft

This implies that , y=10-4=6ft

The area of tra-pezoid

=  \frac{1}{2} (10 + 6) \times 4 \sqrt{3}

=  \frac{1}{2} (16) \times 4 \sqrt{3}

=  8\times 4 \sqrt{3}

= 32 \sqrt{3}  {ft}^{2}

6 0
4 years ago
On his last history test, Marty only missed one question. He received -3 points for that question. His friend Julie forgot to st
Nesterboy [21]
It appears that for every question missed, it deducts 3 points.

so if Julie missed 6 questions, then she received a : (-3 * 6) = -18
5 0
4 years ago
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