After 19 hours the number of bacteria will be 193.8.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that in a lab experiment, 80 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 19 hours, to determine how many bacteria would there be after 17 hours, to the nearest whole number, the following calculation must be performed:
The number of bacteria will be calculated as,
30 x ((2/6) x 19) = X
30 x (0.34x 19) = X
30 x 6.46= X
193.8= X
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Find the value of x in the figure. 57 x+23 DUE AT 3PM 2/1 PLZ HELP WITH STEPS
Answer:
x = 100
Step-by-step explanation:
Since the two sides need to equal 180 degrees, we would have this as our formula: x + 23 + 57 = 180
23 + 57 is 80, and we subtract 80 from 180 to get 100 as our answer.
The required value of the variable x is 100, which is determined by the property of the supplementary angles.
As we know that supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles.
Here, the two sides must equal 180 degrees.
As per the property of supplementary angle, it can be written as:
x + 23 + 57 = 180
Apply the addition operation,
x + 80 = 180
x = 180 - 80
Apply the subtraction operation to get,
x = 100
Therefore, the required value of the variable x is 100.
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Hey can someone please help me lol
Answer:
49.53 nautical miles
Step-by-step explanation:
Adding 36 and 21 we get 57 miles.
57 converted to nautical miles would be 49.53
The post office charges forty- six cents for the first ounce shipped, and thirty-three for each additional ounce. How much does it cost to ship a package which weighs 22 ounces
Answer:
300
Step-by-step explanation:
2 6
Write down the smallest integer value of z which satisfies the inequality: 2z + 2 >(smaller or equal to) 7?
Answer:
z> 5 /2
Step-by-step explanation:
1) The bakers at Healthy Bakery can make 290 bagels in 10 hours. How many
bagels can they bake in 23 hours? What was that rate per hour?
Answer:
667 bagels in 23 hours
29 bagels per hour
Step-by-step explanation:
We first find the unit rate in bagels per hour.
(290 bagels) / (10 hours) = 29 bagels/hour
Now we find the number of bagels made in 23 hours.
23 hours * 29 bagels/hour = 667 bagels
2+2= 4 because there is too two's and there for it =4
Answer:
Yes, that is correct. Congrats 7 year old.
Step-by-step explanation:
2 plus 2 equals 4
:)
thanks for points
What is 1/4 divided by 2
What is the price of a $105 pair of shoes after 20% discount
Answer:
$84
Step-by-step explanation:
105 - 21 = 84
Answer:
$84
Step-by-step explanation:
given g(x)=-×-4, slove for x when g(x)=10
Part C Find the length and width of rectangle NEHI, and calculate its area.
Answer:
length of rectangle NEHI = NI = (38 – 8) = 30 feet
width of rectangle NEHI = NE = 5 feet
area of rectangle NEHI = length × width
= 30 × 5
= 150 square feet
Step-by-step explanation:
{(4,7),(2,5),(6,0),(4,_)} If this is a relation
is a function, then what number must
fill in the blank?
Answer:
Ans: The number will be six (6)
What makes 3 +7 +2= +2 true?
Answer:12
Step-by-step explanation:
2+8+6(24)73=12
please help due asap jdbhdbdbd
Answer:
b
Step-by-step explanation:
Answer: b
Step-by-step explanation:
180°-116°=64°
Solve for c.
-5/8c = 20
A. c = -34
B. c = -32
C. c = 26
D. c = 28
Answer:
b
Step-by-step explanation:
solve for c by simplifying both sides of the equation then isolate the variable
Need help on this!! And is urgent!!!!
Solving for the missing side of the triangle , please help
Answer:
C=78
Step-by-step explanation:
first add 72 and 30 you get 102 then subrtract 102 from 180 and youll get your answer of 78
Simplify the expression 4(x + 5) - 3(7 + x)
Answer:
x-1
Step-by-step explanation:
Answer:
x - 1
Step-by-step explanation:
4(x+5)-3(7+x)
4( x + 5) = 4x + 20
4x+20-3(7+x)
-3(7 + x) = -21 - 3x
4x+20-21-3x
4x + 20 - 21 - 3x = x-1
PLSSSS help ASAPPPPP
Answer: The amount of hotdogs you would need to sell in order to reach $300= 80
Step-by-step explanation:
Find how much money is spent per hotdog:140÷70=2
$140= Amount made by selling 70 Hotdogs
70=Amount of Hotdogs sold already
Dividing 140 by 70 will get you the cost of 1 hotdog. This is due to division being the act of separating something into parts. There are 70 parts (or hotdogs) in this equation so therefore by separating the amount of money made by those selling those parts, the amount per hotdog would be found.
2. Find the amount of hotdogs it would take to earn a total of $300:
300-140= 160 160÷2= 80
The question asks for a total of $300 to be earnt by selling hotdogs. $140 has already been earnt, therefore a portion of the total amount has been made. By subtracting the amount already made by the total amount of money that is wanted to be earnt, the amount of money needed to reach the $300 is found. The $160 is then divided by the amount of money spent per hotdog ($2). The answer (80) is the amount of hotdogs required to be sold to reach the goal of $300.
Solve the equation.
-4(2: + 6) - 12 = 4
Can you help my sister
Answer:
40
Step-by-step explanation:
The teacher ordered 5 pizzas with 8 slices each which is 5*8=40
The diagram shows a square with a perimeter of 20 cm.
Not drawn
accurately
Eight of these squares fit together to make a rectangle.
Not drawnaccurately
What is the perimeter of the rectangle?
The perimeter of the rectangle is 70cm.
What is perimeter?Perimeter is the total length of the sides of a two-dimensional shape.
What is the formula for the perimeter of square?Perimeter of the square is given by
P = 4a
where,
a is the side length of the square.
P is the perimeter of the square.
What is the formula for the perimeter for the rectangle?Perimeter of the rectangle is given by
P = 2( l + b)
Where,
l is the of the rectangle
b is the breadth of the the rectangle
According to the given question.
We have the perimeter of the square is 20cm.
⇒ 4a = 20
⇒ a = 5cm
⇒ Each side length of the square is 5cm
And a rectangle made of 10 squares.
⇒ length of the rectangle = 5×5 = 25cm
and the breadth of the rectangle = 2 × 5 = 10cm
Therefore, the perimeter of the rectangle = 2(25 + 10) = 2 × 35 = 70cm
Hence, the perimeter of the rectangle is 70cm.
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so can someone like pls help me what's -20×-18=
Answer:
360
Step-by-step explanation:
-20x-18=20x18=360
Answer:
-2(10x+9)
Step-by-step explanation:
Please show work lol, also Brainliest goes out to the correct answer
Answer:
Answer below
Step-by-step explanation:
1. Mr. Jones is correcting math test. Here are the scores for the
first fourteen tests he corrected 62, 65,93, 51, 55, 12,79,
85, 55, 72, 78, 83, 91, and 76. Which score does not seem
to fit the data? Explain how the outlier score affects the
mean and the median of the data.
Answer:
12
Step-by-step explanation:
12 doesn't fit the data because it is so much farther from the general average of the others.
12 affects the median because with it, the median is 74. but without 12, the median is 76.
12 affects the mean because with it, the mean is 68.36. but without 12, the mean is 72.69.
PGR is a right-angled triangle.
Work out the size of angle PGR. Give your answer correct to 1 decimal place.
Answer:
PQR = 67.4 degrees
Step-by-step explanation:
Here, we want to find the size of PQR
to do this, we proceed as follows
As we can see PR is the opposite while PQ is the hypotenuse
The trigonometric identity connecting the two is the sine
sine is the ratio of the opposite to the hypotenuse
sin Q = 12/13
Q = sin^-1(12/13)
Q = 67.4 degrees
1 5/6 ÷ 3/5 x 2/11 = ?
please help! will give brainliest! also, please show all work, thanks!
Answer:
75/99
Step-by-step explanation:
Evaluate the function. f(x)=-4x^2+10 find f(-2)
Answer:
[tex]f(-2)=-6[/tex]
Step-by-step explanation:
[tex]f(x)=-4x^{2} +10[/tex]
At x=-2
[tex]f(-2)=-4(-2)^{2} +10[/tex]
[tex]f(-2)=-4(4) +10[/tex]
[tex]f(-2)=-16 +10[/tex]
[tex]f(-2)=-6[/tex]
Drag each equation to show if it could be a correct first step to solving the
equation
3(x+8)= 42.
Put in Yes, No, or Not Enough Information category.
Answer:
The first step to solving the equation is:
[tex]3x+24 = 42[/tex]
Hence, 3x + 24 = 42 is the correct option.
Step-by-step explanation:
Given the equation
[tex]3(x+8)= 42[/tex]
First of all, we need to apply the distributive law on the left side of the equation to expand the equation.
[tex]\quad \:a\left(b+c\right)=ab+ac[/tex]
So the equation would be expaneded using the distributive law on the left side of the equation
[tex]3(x+8) = 42[/tex]
[tex]3x+24 = 42[/tex] ∵ a(b+c) = ab + ac
Therefore, the first step to solving the equation is:
[tex]3x+24 = 42[/tex]
Hence, 3x + 24 = 42 is the correct option.
Answer: Just switch the two I got wrong, and you'll get them all right!<3
Step-by-step explanation:
What is the slope of the line represented by the equation y = -1/2x +1/4?
Answer:
-1/2
Step-by-step explanation:
y = -1/2x + 1/4 is in slope y-intercept form : y = mx + b
m is slope
Slope = -1/2
Simplify 9x - 4 + 3x
Answer:
[tex]4(3x - 1)[/tex]
Step-by-step explanation:
[tex]9x - 4 + 3x[/tex]
Adding 9x & 3x gives 12x.
[tex] = > 12x - 4[/tex]
Now taking 4 common from both the terms , we get :-
[tex]4(3x - 1)[/tex]