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mina [271]
3 years ago
9

The population of bacteria in a petri dish doubles every 12 h. The population of the bacteria is initially 500 organisms. How lo

ng will it take for the population of the bacteria to reach 800? Round your answer to the nearest tenth of an hour.
Mathematics
1 answer:
Alenkasestr [34]3 years ago
6 0

Answer:

The answer is 8.1 h




Good luck!!!!!

Step-by-step explanation:


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Mrs. Henderson wants to put wallpaper border around her living room the room is 18 ft by 22 ft. How many feet of border are need
irga5000 [103]
If I am understanding the question, and assuming the living room is a rectangle, then the border should be 80 ft
8 0
3 years ago
Here are 20 students in Jacob's homeroom. Five students bring their lunch to school. The rest eat lunch in the cafeteria. In sim
murzikaleks [220]

Answer: 3/4

Step-by-step explanation:

Number of students in Jacob's homeroom = 20.

Number of students who bring their lunch to school = 5

Since the rest eat lunch in the cafeteria, the number of those who eats in the cafeteria will be:

= 20 - 5

= 15

Fraction that eats in the cafeteria will be: = 15/20 = 3/4

5 0
3 years ago
Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P'Q'R' has v
Serggg [28]

Step-by-step explanation:

that's for Part B

Part C: triangles PQR and P"Q"R" are not congruent since the corresponding sides are not equal

5 0
3 years ago
Which value is NOT a solution of the inequality -2x + 5<7?
Ivenika [448]

Answer:1

Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

-2*x+5-(7)<0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1 Pull out like factors :

-2x - 2 = -2 • (x + 1)

Equation at the end of step

1

:

STEP

2

:

2.1 Divide both sides by -2

Remember to flip the inequality sign:

Solve Basic Inequality :

2.2 Subtract 1 from both sides

x > -1

Inequality Plot :

2.3 Inequality plot for

-2.000 X - 2.000 > 0

One solution was found :

x > -1

5 0
2 years ago
Read 2 more answers
Alex scored 70% in a spelling test with 20 quetions
amm1812

Answer:

This means that Alex answered 14 questions correctly

Step-by-step explanation:

<u>Step 1:  Find an equation</u>

20 * 0.7 = x

<u>Step 2:  Multiply</u>

20 * 0.7 = x

14 = x

Answer:  This means that Alex answered 14 questions correctly

5 0
3 years ago
Read 2 more answers
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