In a lab experiment, 80 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 17 hours. How many bacteria would there be after 20 hours, to the nearest whole number?

Answer:

D

Step-by-step explanation:

Reflection across the x axis

This is your answer because it is reflection on the x axis

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The transformation shown from Triangle P to Triangle Q is Translation.

A transformation  is a general term for four specific ways to manipulate the shape and/or position of a point, a line, or geometric figure.

Given that,  Triangle P is transformed to Triangle Q.

The transformation shown is a translation transformation, because in a translation transformation, all the points in the object are moved in a straight line in the same direction.

Hence, The transformation shown from Triangle P to Triangle Q is Translation.

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9514 1404 393

Answer:

  2x -y = 7

Step-by-step explanation:

Only the constant is different for the parallel line. It must be chosen so that the given point satisfies the equation.

  2x -y = 2(4) -(1) = 7

The equation is ...

  2x -y = 7

Answer: its 15 and 8

Step-by-step explanation:

Answer: 15

Step-by-step explanation:

Answer:

4 teachers

Step-by-step explanation:

If there is one teacher for every 18 students, you would divide the total number of students on the trip (72) by 18..

72/18= 4

so the answer is 4

Answer:

68.20°

Step-by-step explanation:

Using Pythagoras rule :

Tanθ = opposite / adjacent

Adjacent = 8ft

Opposite = 20

Tanθ = 20 / 8

θ = tan^-1(20/8)

= 68.198590

Hence, angle of elevation = 68.2°

Answer:

Girls (Morning)  = 16

Step-by-step explanation:

60 children go to a nursery. The ratio of girls to boys is 3 : 2

Number of Boys = 3 / (3 + 2) * 60 = 3/5 * 60 =36

Number of Girls = 2 / (3 + 2) * 60 = 2/5 * 60 = 24

Three quarters of the children go to the nursery in the morning.

Number of children (Boys + Girls) = 3/4 * 60 = 45

The rest of the children go to the nursery in the afternoon.

Number of children (Boys + Girls) = 60 - 45 = 15

7 boys go to the nursery in the afternoon.

Boys + Girls = 15

Girls (Afternoon) = 15 - Boys = 15 - 7 = 8

Work out how many girls go to the nursery in the morning.

Girls (Morning) + Girls (Afternoon) = Girls (Total)

Girls (Morning)  + 8 = 24

Girls (Morning) = 24 - 8

Girls (Morning)  = 16

Answer:

The number of girls that go to the nursery in the morning are 28 girls

Step-by-step explanation:

The question is a word problem and the parameter given are as follows;

The number of children that go to the nursery, n = 60

The ratio of girls to boys = 3 : 2

The number of periods the children can attend the nursery = 2, morning or afternoon

The proportion of the children that go to the nursery in the morning = 3/4

The proportion of the children that go to the nursery in the afternoon = All those that do not go in the morning

The number of boys that go to the nursery in the afternoon = 7 boys

Let, 'x', represent the number of girls in the school, and let 'y', represent the number of boys in the school

Therefore, we have the following possible equations;

x + y = 60

x:y = 3:2

Therefore, the proportion of the total number of children that go to the nursery that are girls, x = 3/(3 + 2) = 3/5

The number of girls that go to the nursery, x = n × 3/5 = 60 × 3/5 = 36 girls

The number of girls that go to the nursery, x = 36 girls

∴ The number of boys that go to the nursery, y = 60 - 36 = 24 boys

The number of boys that go in the morning = y - (The number of boys that go to the nursery in the afternoon)

∴ The number of boys that go in the morning = 24 boys - 7 boys = 17 boys

The total number of children that go to nursery in the morning = 3/4 × (The number of children that go to the nursery, n)

∴ The total number of children that go to nursery in the morning = 3/4 × 60 = 45 children

The number of girls that go to the nursery in the morning = (The total number of children that go to nursery in the morning) - (The number of boys that go in the morning)

Therefore, the number of girls that go to the nursery in the morning = 45 children (girls + boys) - 17 boys = 28 girls

The number of girls that go to the nursery in the morning = 28 girls

Answer:

$5

Step-by-step explanation:

15x18=270

1170-270=900

900/18=50

Answer:

$60

Step-by-step explanation: This helpful but I can not step by step

Answer:

did you ever get the answer bc I am struggling on this, pls help.

Step-by-step explanation:

Answer: 5.81%

Step-by-step explanation: Delta Math

A = 17700. P = 9900. t = 10

17700 = 9900e^r(10)

17700/9900 = 9900e^10r/9900

1.7878788 = e^10r

In(1.7878788) = In(e^10r)

In(1.7878788) = 10r

In(1.7878788)/10 = 10r/10

0.058103 = r

5.8103% = r

r = 5.81%

Answer:

4 cups

Step-by-step explanation:

2 divided by 1/2 is 4 so there are 4 half cups of sugar.

Since the sugar is multiplied by 4 you have to multiply the flour by 4.

1*4=4

Answer:

y=-1/5x

For the equation of the line in slop intercept form

Answer:

the first one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

6

Step-by-step explanation:

well 5 divided by 3/4 is 6.66666666667 which you can say is 6

Answer:

where is the spinner

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:2

Step-by-step explanation:

2

For line y = 9x, m = 9 and c = 0

"y = mx + c, where m is the slope of the line and c is the y-intercept of the line."

"It is the change in y coordinate with respect to the change in x coordinate."

"It is a point at which a line intersects the Y-axis."

For given question,

We have been given an equation of line y = 9x

By comparing above equation of line with the slope-intercept form of line,

m = 9 and c = 0

This means the slope of the line y = 9x is 9 and the y-intercept is 0

Therefore, for line y = 9x, m = 9 and c = 0

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Given:

m is directly proportional to the cube of h.

m = 525 when h= 5.

To find:

The equation connecting m and h.

Solution:

m is directly proportional to the cube of h.

[tex]m\propto h[/tex]

[tex]m=kh[/tex]            ...(i)

Where, k is the constant of proportionality.

Putting m = 525 and h= 5, we get

[tex]525=k(5)[/tex]

[tex]\dfrac{525}{5}=k[/tex]

[tex]105=k[/tex]

Putting k=105 in (i), we get

[tex]m=105h[/tex]

Therefore, the required equation is [tex]m=105h[/tex].

Answer:

1. 0.0075 or B

2. Yes and unlikely

Step-by-step explanation:

Answer:

A. 24x = 192

Step-by-step explanation:

Answer:

A. 24x = 192

Step-by-step explanation:

you would have to multiply 24 x 8 in order to 192!

So yes, the correct answer would be A. 24 x = 192!

Its simple you just have to multiply how many packs x how many crayons he bought! :D

Answer:

1/6

Step-by-step explanation:

on the cube, each number is listed one time. if he rolls the cube one time, he has 1/6 chance of it landing on 4.

Answer:

1/6

Step-by-step explanation:

1/6th is the answer. The cube has sides that are labeled 1 to 6. Since 4 is one number that is a possibility and there are 6 possibilities that the cube may roll another number.  He has 1/6th of a chance that the number lands on 4.

Answer:

32

Step-by-step explanation:

1 mile = 1.609 kilometers

Answer:

4 minus StartFraction n cubed Over 7 EndFraction + 3

Step-by-step explanation:

Let the number be n

Quotient of of a number cubed and seven: n³/7

Four less the quotient of a number cubed and seven: 4 - n³/7

Four less the quotient of a number cubed and seven, increased by three: 4 - n³/7 + 3

Answer:

2x+4

Step-by-step explanation:

Answer:

length: 38 feet

width: 10 feet

area: 380 ft²

Step-by-step explanation:

The scale between the drawing and the actual studio is 2 in : 5 ft. If we divide both sides by 2, we find that the scale is 1 in : 2.5 feet.

For the first number, 15.2 inches, if we multiply it by 2.5 and change the label to "feet", we can find the real length.

15.2 * 2.5 = 38.

The length is 38 feet.

For the width, do the same thing.

4 * 2.5 = 10

The width is 10 feet.

Area is length times width. So if we plug in the numbers we just found:

38 * 10 = 380.

The area is 380 ft²

Answer:

87

Step-by-step explanation:

A^2+B^2=C^2

63^2+60^2=C^2

3969+3600=7569

Square root of 7569 is 87

Answer:

87

Step-by-step explanation:

Using Pythagoras' theorem in the right triangle.

The square on the hypotenuse (h) is equal to the sum of the squares on the other 2 sides, that is

h² = 60² + 63² = 3600 + 3969 = 7569 ( take the square root of both sides )

h = [tex]\sqrt{7569}[/tex] = 87

Answer: Yes

Step-by-step explanation:

They usually come in three months after you take the test. I think I got mine in the middle of May.

Answer:

x=6.75

Step-by-step explanation:

9/16x x/12

cross multiply

16 times x equals 16x 9 times 12 equals 108

16x=108

16/16=108/16

x=6.75

pls brainliest hope this helps