Answer:
572.7272
572.73 (rounded)
Step-by-step explanation:
used calc
Maria had $22 to spend on five pencils. After buying them she had $12.
How much did each pencil cost
What is the best estimate for 18.301 ÷ (-5.927)?
Answer:
negative 3.08
Step-by-step explanation:
What general equation is suggested by the graph line?
y = mx + b
y = k(1/x)
y = kx2
Answer:
y=mx+b
Step-by-step explanation:
I took the test :)
Factor the polynomial 8x² − 24x − 224 completely. help now!
Answer:
8 ( x − 7 ) ( x + 4 )
Step-by-step explanation:
Jenniter's bill for lunch was $15.00 if Jennifer left a 20% tip, which proportion would BEST represent how to find how much tip she should leave? 15 100 20 B — 20 100 15 15 20 100 O D 15 100
Answer:
Well, I usually multiply this which would be 15 x .2 which would equal the tip.
Step-by-step explanation:
pls give the right answer to this question it is not 0.45662100456
Answer:
2.19
Step-by-step explanation:
Answer:
2.19
Step-by-step explanation:
You have 29 thirds. This is a fraction greater than one.
How many wholes can I make with that?
How many thirds would be left over?
You could make 9 wholes with that and there would be 2 thirds left over.
To solve it you would just have to divide 29 by 3 which would give you 9 and leave you with 2 thirds left.
Sorry for the bad picture quality, lol trust me I’m not android user... bUt I really am struggling! Help!-
Answer:
a to u
Step-by-step explanation:
)) What is the area of this figure?
3 mi
5 mi
8 mi
15 mi
6 mi
18 mi
8 mi
9 mi
Write your answer using decimals, if necessary.
square miles
Answer:
678182829jijsjsjsjsjskskwkdkw
Area of the given figure is 199.5 square miles.
What is Area?Area of a two dimensional shape is the total region which is bounded by the object's shape.
The given figure can be divide in to smaller figures to find the area of each smaller figure and add it.
A rectangle with sides 5 miles and 3 miles.
A rectangle with sides 15 miles and 6 miles.
A rectangle with sides (8 - 5) + 6 = 9 miles and 3 miles.
A triangle with base length 9 miles and height 8 + 6 + 3 = 17 miles.
Area = (5 × 3) + (15 × 6) + (9 × 3) + (1/2 × 9 × 17)
= 15 + 90 + 18 + 76.5
= 199.5 square miles
Hence the area of the given figure is 199.5 square miles.
Learn more about Area here :
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. What will be the coordinates of point T after a 180° rotation about the origin?
Step-by-step explanation:
180 Degree Rotation
When rotating a point 180 degrees counterclockwise about the origin our point A(x,y) becomes A'(-x,-y)
A colony of 100,000 ants has been declining in number at a rate of 11.4% per month. If allowed to decline uninhibited, how long will it take the population to decrease to 25,000 ants? Round to the nearest tenth.
a. 17.6 months
b. 12.2 months
c. 5.3 months
d. 24.3 months
Answer:
b. 12.2 months
A percentage is a way to describe a part of a whole. The correct option is B.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Given that the colony of 100,000 ants has been declining in number at a rate of 11.4% per month. Therefore, the number of months it will take for the ant population to reach 25,000 ants is,
Population = 100,000(1-0.114)ⁿ
25,000 = 100,000(1-0.114)ⁿ
0.25 = 0.886ⁿ
log(0.25) / log(0.886) = n
n = 11.45335
Since the value is close to 12.2 months.
Hence, the correct option is B.
Learn more about Percentages:
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1/4 ÷ (−3/8) Can anyone help me with this?
Answer:
Fraction:
- 2 over 3
Decimal: -0.66666666
(- Repeating Decimal-)
Step-by-step explanation:
please help it would mean so much to im stressed out
5) the line goes diagnol right throuh the zero from the bottom left corner to the top right.
6) straight line across 3 (3,0)
7) straight line across -2 (-2,0)
8) its a open dot on 1 with the line going right
9) ok so they are both intercecting im pretty sure its a no solution tho
Write an equation in slope intercept form that passes through the point (2,-2), and has a slope that equals -2 (please hurry)
Answer:
y = -2x + 2
Step-by-step explanation:
Plug in the point and slope into y = mx + b, and solve for b:
y = mx + b
-2 = -2(2) + b
-2 = -4 + b
2 = b
Plug in the slope and y intercept into y = mx + b
y = -2x + 2
So, the equation is y = -2x + 2
Help me pls thank you sooooo much
Answer: Length: 24
Step-by-step explanation:
Answer:
I think its 32.4
Step-by-step explanation:
324/30=10.8
10.8*3=32.4! Hope this helped!! :)
can someone help me plz
HELP I NEED HELP ON THIS ASSIGNMENT
Jeff invested 3000 dollars into an account that gives 6.5% interest, compounded annually. The formula of the compound interest is A(t)=P(1+i)^t.
How much did Jeff have after three years?
Answer:
he will have $3623.85 after 3 years.
A simple random sample of 25,000 individuals are surveyed in order to determine the prevalence of individuals that contracted the flu in the past year. Assuming 4,250 individuals indicated they had been diagnosed with the flu at some point in the past year, what is the prevalence of flu for the past year, as indicated from the survey participants
Answer:
The prevalence of flu for the past year, as indicated from the survey participants, was of 17%.
Step-by-step explanation:
Given the survey, the prevalence of the flu, as a percentage, is given by:
Number of individuals diagnosed with flu, multiplied by 100, and divided by the size of the sample.
In this question, we have that:
Sample of 25,000, and 4,250 of those had been diagnosed with the flu at some point in the past year. So, the prevalence of the flu is given by:
[tex]\frac{4250*100}{25000} = 17[/tex]
The prevalence of flu for the past year, as indicated from the survey participants, was of 17%.
Graphing Ratios Which line includes the ratios in the table? Reading a Graph All the ratios lie on line
Answer:
b
Step-by-step explanation:
Add negative 8 + positive 8
Answer: 0
Step-by-step explanation: -8+8=0
Answer:
0
Step-by-step explanation:
So if you have -8 and 8 and you add them together they cancel out each other and make 0
A certain population increases at a rate proportional to the square root of the population. If the population goes from 2500 to 3600 in five years, what is the population at the end of t years
Answer:
[tex]P(t) = (2t + 50)^2[/tex]
Step-by-step explanation:
A certain population increases at a rate proportional to the square root of the population.
This means that the population can be described by the following differential equation:
[tex]\frac{dP}{dt} = r\sqrt{P}[/tex]
In which r is the growth rate.
Solving by separation of variables, we have that:
[tex]\frac{dP}{\sqrt{P}} = r dt[/tex]
Integrating both sides:
[tex]2\sqrt{P} = rt + K[/tex]
In which K is a random constant
[tex]\sqrt{P} = 0.5rt + K[/tex]
Finding the squares of both sides:
[tex]P(t) = (0.5rt + K)^2[/tex]
Finding the value of K
The initial population is of 2500. That is, when [tex]t = 0, P = 2500[/tex]. So
[tex]P(t) = (0.5rt + K)^2[/tex]
[tex]2500 = (0.5r(0) + K)^2[/tex]
[tex]K^2 = 2500[/tex]
[tex]K = \sqrt{2500}[/tex]
[tex]K = 50[/tex]
So
[tex]P(t) = (0.5rt + 50)^2[/tex]
Finding the value of r
Population of 3600 in 5 years(when t = 5). So
[tex]P(t) = (0.5rt + 50)^2[/tex]
[tex]3600 = (0.5r(5) + 50)^2[/tex]
[tex](2.5r + 50)^2 = 3600[/tex]
Taking the square root of both sides
[tex]\sqrt{(2.5r + 50)^2} = \sqrt{3600}[/tex]
[tex]2.5r + 50 = 60[/tex]
[tex]2.5r = 10[/tex]
[tex]r = 4[/tex]
So, the equation for the population at the end of t years is given by:
[tex]P(t) = (0.5rt + 50)^2[/tex]
[tex]P(t) = (0.5(4)t + 50)^2[/tex]
[tex]P(t) = (2t + 50)^2[/tex]
Simplify (2V5 - 4)(3 V5+2).
a.
4
c.
b.
8-4v5
d. 22-8v5
Answer:
[tex](2\sqrt{5} - 4)(3\sqrt{5}+2)= 22 - 8\sqrt{5}[/tex]
Step-by-step explanation:
Given
[tex](2\sqrt{5} - 4)(3\sqrt{5}+2)[/tex]
Required
Simplify
[tex](2\sqrt{5} - 4)(3\sqrt{5}+2).[/tex]
Expand brackets
[tex]2\sqrt{5}(3\sqrt{5}+2). - 4(3\sqrt{5}+2).[/tex]
Open each bracket
[tex]2\sqrt{5}*3\sqrt{5}+2\sqrt{5}*2 - 4*3\sqrt{5}-4*2[/tex]
[tex]6 * 5 + 4\sqrt{5} - 12\sqrt{5} - 8[/tex]
[tex]30 + 4\sqrt{5} - 12\sqrt{5} - 8[/tex]
Collect Like Terms
[tex]- 8+30 + 4\sqrt{5} - 12\sqrt{5}[/tex]
[tex]22 - 8\sqrt{5}[/tex]
Hence:
[tex](2\sqrt{5} - 4)(3\sqrt{5}+2)= 22 - 8\sqrt{5}[/tex]
keith reads 30 pages in 3 hours how many pages did he read per hour?
Answer:
10 pages per hour
Step-by-step explanation:
3*10=30
have a wonderful night:)
What is 1.2 divided by 25?
A. 0.48
B. 0.0048
C. 48.0
D. 00.48
Answer:
D 0.048
Step-by-step explanation:
Answer:
0.048
Step-by-step explanation:
0.048 is the correct answer but I don't see that choice.
==50 POINTS==
Select all the correct answers.
Which expressions are equivalent to this exponential expression?
⇒⇒
PLEASE HELP
A- 6⁻⁶
B- 6⁶
C- 1/6⁶
D- 1/6⁻⁶
E- 1/36
Answer: A and D thanks for th 25 pts
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Pls help urgently extra points and mark brainlist sorry it’s reading but easy
Answer:
Gather
Step-by-step explanation:
Answer: Gather
Hope this helps!
The perimeter of a picture frame is 68 inches. The difference between the length of the frame and th
times its width is 2. The system of equations
Answer:
L - W = 2 and 2L + 2W = 68
Step-by-step explanation:
The two equations here are going to be-
Length minus width equals 2
L - W = 2
And
Length x 2 + Width x 2 = 68
2L + 2W = 68
Dan is moving old monitors and printers from an office to a local electronic recycling center. Danhas to move a total number of 60 printers and monitors with a combined weight of 1750 lbs. One monitor weighs 35 pounds, and a printer weighs 25 pounds. Does Dan recycle a greater weight of printers or monitors. Explain using a system of equation.
Answer:
Dan is recycling equal weight of printers and monitors.
Step-by-step explanation:
Let,
x be the number of printers
y be the number of monitors
According to given statement;
x+y=60 Eqn 1
25x+35y=1750 Eqn 2
Multiplying Eqn 1 by 25
25(x+y=60)
25x+25y=1500 Eqn 3
Subtracting Eqn 3 from Eqn 2
(25x+35y)-(25x+25y)=1750-1500
25x+35y-25x-25y=250
10y = 250
Dividing both sides by 10
[tex]\frac{10y}{10}=\frac{250}{10}\\y=25[/tex]
Putting y=25 in Eqn 1
x+25=60
x=60-25
x=35
Weight of printers = 35*25 = 875 lb
Weight of monitors = 25*35 = 875 lb
Therefore,
Dan is recycling equal weight of printers and monitors.
welp this is me with my instrument...i look weird
Answer:
wow i have never seen that instrument before.
Step-by-step explanation:
pls help pls or i will fail pls hurry
Answer:
Mean = 60
Median = 56
Mode = 48
Range = 32
Step-by-step explanation: You can find the Mean by adding all the number together then dividing by how many number in the problem. So, 48 + 64 + 80 + 48 = 240 then, divide by 4, which is how many numbers are in this equation. You can find the Median by putting the numbers in the equation in order, 48, 48, 64, 80. Then, you will find what number is in the middle, or look at it as for the number in the middle to have the same amount of numbers on each side. So, in this case 48 and 64 are in the middle. There are two numbers in the middle instead of one, so you have to add them together to get 112 then divide by 2, because it is how many numbers you added together. You can find the Mode by seeing what number occurs the most, which in this case is 48, it appears two times. Sometimes, there will be no mode. You can find the Range by putting the numbers in order and subtracting the highest amount from the lowest amount, which in this case is 80 - 48 = 32. Hope this helps ^-^