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HACTEHA [7]
4 years ago
11

a culture started with 2000 bacteria. after 4 hours it grew to 2200. predict how many bacteria will be present after 9 hours. ro

und your answer to the nearest whole number

Mathematics
2 answers:
mafiozo [28]4 years ago
5 0

2478

credit doesn't belong to me but here

Sati [7]4 years ago
4 0
First you will divide;
200÷4=50
Then you multiply;
50×9=450
Last you add;
2000+450=2450

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Winston put 3600 in a bank account that pays 3.4% over a 6 year period. How is the amount of simple interest will he earn? remem
Lynna [10]

Answer:

3600 x 3.4=122.4 122.4 x 6=Answer

Step-by-step explanation:

4 0
3 years ago
What does X equal?<br><br> 2x + 2 = 4x + 4
Inessa [10]

Answer:

x = -1

Step-by-step explanation:

Given

2x + 2 = 4x + 4 ( subtract 4x from both sides )

- 2x + 2 = 4 ( subtract 2 from both sides )

- 2x = 2 ( divide both sides by - 2 )

x = - 1

8 0
3 years ago
Plz help !!
tresset_1 [31]

Answer:

so your answer would be \frac{13}{52}

simplified as a fraction would be \frac{1}{4}

.25 as a decimal

and 25% as a percent

Step-by-step explanation:

there are 13 heart card in a deck of 52 cards

7 0
3 years ago
Write the equation of the quadratic function in standard form represented by the graph.
algol13

Answer:

y = x^2 +6x+8

Step-by-step explanation:

First find the zeros, -4 ,-2

y =a (x - -4) (x - -2)

y = a(x+4)(x+2)

Then it is multiplied by a constant so pick a point on the curve and solve for the constant

We will use (0,8)

8 = a(0+4)(0+2)

8 = a(8)

a =1

y = (x+4)(x+2)

Writing in standard form

FOIL

y = x^2 +2x+4x+8

y = x^2 +6x+8

6 0
3 years ago
Brandi is downloading music for her MP3 player. Albums cost $10 each, and singles cost $1 each. She wants to purchase at least 5
allsm [11]

If Brandi purchases x albums and y singles, then x albums cost $10x and y singles cost $y. She wants to spend no more than $25 total, then

10x+y\le 25.

Brandi wants to purchase at least 5 singles. This means that

y\ge 5.

Note that x and y are whole numbers.  

There are three possibility:

  1. x = 0,  y = 25 (the total cost is 10·0 + 1·25 = 25 ≤ 25 and 25 singles is more than 5 singles);
  2. x = 1,  y = 15 (the total cost is 10·1 + 1·15 = 25 ≤ 25 and 15 singles is more than 5 singles);
  3. x = 2,  y = 5 (the total cost is 10·2 + 1·5 = 25 ≤ 25 and 5 singles is equal to minimal required number of singles).

Answer: 1) 0 albums and 25 singles;

2) 1 album and 15 singles;

3) 2 albums and 5 singles.  

7 0
4 years ago
Read 2 more answers
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