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morpeh [17]
2 years ago
13

3) A certain type of cell doubles every 4 hours. If you started with 30 cells, how many

Mathematics
1 answer:
Studentka2010 [4]2 years ago
4 0
I think u would do 20/4. Which is five. Then 5*2=10. Add the ten to the thirty. Final answer is 40
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George found out that he blinked 85 times in 15 minutes. At this rate, how many seconds passed during 51 blinks?
shepuryov [24]
51 blinks in 9 minutes
3 0
3 years ago
Check image please help
Stells [14]

Answer:

Step-by-step explanation:

"The total number of dollars in fives and tens" tells you that these denominations are being added together.  Because a five dollar bill is worth $5 and a ten dollar bill is worth $10, then the number of $5 bills is represented by 5f and a the number of $10 bills is represented by 10t.  Therefore,

T = 5f + 10t

3 0
2 years ago
Karen has $600. She spent $240 on clothes. What percentage of money did she have left?
Rudiy27

Answer: She had 60% of the money left

Step-by-step explanation:

240/600=0.4

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Read 2 more answers
1/3x−2= 3 What must the value of this number be?
Simora [160]

Answer: 15

Step-by-step explanation:

1/3x - 2 = 3

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6 0
3 years ago
Graph y = x2 + 2. Identify the vertex of the graph. Tell whether it is a minimum or maximum. (0, 2); maximum (0, 2); minimum (2,
miskamm [114]

Answer:

(0,2); minimum

Step-by-step explanation:

Given:

The function is, y=x^{2}+2

The given function represent a parabola and can be expressed in vertex form as:

y=(x-0)^{2}+2

The vertex form of a parabola is y=(x-h)^{2}+k, where, (h,k) is the vertex.

So, the vertex is (0,2).

In order to graph the given parabola, we find some points on it.

Let x=-2,y=(-2)^{2}+2=4+2=6

x=-1,y=(-1)^{2}+2=1+2=3

x=0,y=(0)^{2}+2=0+2=2

x=2,y=(2)^{2}+2=4+2=6

x=1,y=(1)^{2}+2=1+2=3

So, the points are (-2,6),(-1,3),(0,2),(1,3),(2,6).

Mark these points on the graph and join them using a smooth curve.

The graph is shown below.

From the graph, we conclude that at the vertex (0,2), it is minimum.

8 0
3 years ago
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