The percentage decrease of the depth of the lake from January to August is 20%.
What is percentage decrease?The difference between the initial and final numbers is shown as a percentage reduction. It displays a percentage loss of value compared to the original regardless of the units. The decrease is equal to the initial amount less the final amount.
Given,
The depth of lake in January = 943 feet
The depth of lake in August = 754.4 feet
The difference is = (943-754.4) feet
= 186.6 feet
So, the percentage decrease of the depth of the lake from January to August will be = (186.6 ÷ 943) × 100
= 20%
Therefore, the answer is 20%.
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What is the solution to the equation?
1/2n+3=6
n = 18
n = 9
n = 6
n=3/2
start by plugging them in to thr problem
I need your help please with this problem of math.
(14+8²)÷2-10
Answer: 29
Step-by-step explanation: your welcome
A catering company mixes taco seasoning and sour cream to make a vegetable dip. The table shows the amount of taco seasoning for various amounts of sour cream
Here is the completed table:
Taco 3 9 13.5
Sour cream 2 6 9
The amount of taco seasoning that is needed to make 15 cups of sour cream is 22.50 teaspoons.
What is the ratio of taco to sour cream?Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained within other value(s).
Given the information in the table, the amount of taco seasoning needed for 1 cup of sour cream is 2/3.
The amount of sour cream needed for 1 teaspoon of taco seasoning is 3/2.
The teaspoon of taco seasoning needed for 9 cups of sour cream : 3/2 x 9 = 13.5 teaspoons
Cups of sour cream needed for 9 teaspoons of taco seasoning : 2/3 x 9 = 6 cups
The teaspoon of taco seasoning needed for 15 cups of sour cream : 3/2 x 15 = 22.50
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Choose the polygon with vertices U(–4, –5), V(–4, 4), W(–2, 4), X(–2, 1), Y(1, 1), and Z(1, –5).
The polygon with vertices U(–4, –5), V(–4, 4), W(–2, 4), X(–2, 1), Y(1, 1), and Z(1, –5) will be ''An Irregular hexagon''.
What is Coordinates?
A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
The vertices of the polygon are,
U(–4, –5), V(–4, 4), W(–2, 4), X(–2, 1), Y(1, 1), and Z(1, –5)
Now,
Since, The vertices of the polygon are,
⇒ U(–4, –5), V(–4, 4), W(–2, 4), X(–2, 1), Y(1, 1), and Z(1, –5)
Clearly, There are 6 vertices with irregular point.
Thus, We get;
The polygon is Irregular hexagon.
Therefore, The polygon with vertices U(–4, –5), V(–4, 4), W(–2, 4),
X(–2, 1), Y(1, 1), and Z(1, –5) will be ''An Irregular hexagon''.
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Divide €45 between Sharon and Louise in the ratio of 4: 5.
Answer:
€20 for Sharon
€25 for Louise
Step-by-step explanation:
For a ratio of 4:5, you add 4+5 = 9.
You need 4 out of 9 parts for Sharon, and 5 out of 9 parts for Louise.
4/9 × €45 = €20 for Sharon
5/9 × €45 = €25 for Louise
638 divided by 34 long division
Answer:
18 R26
Step-by-step explanation:
[tex]\ \ \ \ \ \ \,\,\, 18 \textrm{ R}26\\{34\ \overline{\smash{)}\ 638}}\\\textrm{ } \ \ \ \underline{-34}\\\textrm{ } \ \ \ \ \ \, 298\\\textrm{ } \: \, \ \ \underline{-272}\\\textrm{ } \ \ \ \ \ \ \: \, 26[/tex]
help meeeeeeeeeeeeeeeeeeeeeeeeeeeee pleaseeeeeeeeeeeeee
Answer:
The quickest answer is to take the number 72 and divide it by the rate of interest. In this case, it would take approximately 72/6, or 12 years to double.
Step-by-step explanation:
The lines passing through which pairs of points have a positive y-intercept? Select all that apply. A (- 3, 10) and (1, 2) B (- 1, 6) and (0, 2) C (1, 2) and (3, 4) D (0, - 4) and (3, - 2) E (3, 1) and (5, 2)
The lines passing through points A (- 3, 10) and (1, 2) , B (- 1, 6) and (0, 2) , and C (1, 2) and (3, 4) has positive y-intercept.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
As we know, the slope formula is:
[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]
A (- 3, 10) and (1, 2)
m = (2-10)/(1+3)
m = -8/4 = -2
y = mx + c
y = -2x + c
Plug (- 3, 10)
10 = -2(-3) + c
c = 10 - 6 = 4 (positive y-intercept)
Similarly, for the other points:
B (- 1, 6) and (0, 2)
y = -4x + 2 (positive y-intercept)
C (1, 2) and (3, 4)
y = x + 1 (positive y-intercept)
D (0, - 4) and (3, - 2)
y = 0.667x - 4 (negative y-intercept)
E (3, 1) and (5, 2)
y = 0.5x -0.5 (negative y-intercept)
Thus, the lines passing through points A (- 3, 10) and (1, 2) , B (- 1, 6) and (0, 2) , and C (1, 2) and (3, 4) has positive y-intercept.
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How many solutions does the system of equations have?
Answer: IT can have simultaneous solutions
Step-by-step explanation:
You need to go through the cubic units and count them to get the answer
Answer:
2 solutions
Step-by-step explanation:
The solutions of the system of equations are the points of intersection of the two graphs, the red line and the blue parabola. Since there are two points of intersection, there are 2 solutions.
Answer: 2 solutions
Marc earns $3,300 per month in gross income. He withholds 28%
of his paycheck in taxes and deductions. What is his monthly net
pay?
Answer:
$2376
Step-by-step explanation:
Money Marc withholds from his gross income in taxes and deductions: We can do this by multiplying his gross income by the withholding rate of 28%, which gives us 0.28 * $3,300 = $<<0.28*3300=924>>924.
Next, we need to subtract this amount from Marc's gross income to find his net pay. This gives us $3,300 - $924 = $<<3300-924=2376>>2376. Therefore, Marc's monthly net pay is $2376.
After washing dishes, water drips from the faucet. The graph shows the number of cups of water that drip from the faucet over time. How many gallons of water drip from the faucet in 24 hours?
The number of gallons of water that drip from the faucet in 24 hours is; 6 gallons
How to Interpret Linear Graphs?We can see from the graph, that the x-axis represents the time in hours that the cup of water has dripped from the faucet while the y-axis represents the number of cups that has dripped from the faucet over a specific time frame.
Now, from the graph, we see the following coordinates;
(1, 4)
(2, 8)
(3, 12)
(4, 16)
Thus;
Slope = (8 - 4)/(2 - 1)
Slope = 4
Thus, the rate is 4 cups drip per hour.
1 hour = 4 cups dripping
Thus; 24 hours = (24 * 4)/1 = 96 cups
Now, conversion rate of cups to gallon is;
1 cup = 1/16 gallon
Thus;
96 cups = 96 * 1/16 = 6 gallons
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simplify the expression.
-5(2x-7) -3x
Answer: -13x+35
Hope this helps! :)
Step-by-step explanation:
-5(2x-7)-3x
(1. Distribute)
-10x+35-3x (2 negatives make a positive when multiplying and dividing)
(2. Combine like terms)
-13x+35 (Add the negatives)
Avery earned a score of 310 on Exam A that had a mean of 350 and a standard deviation of 20. She is about to take Exam B that has a mean of 550 and a standard deviation of 40. How well must Avery score on Exam B in order to do equivalently well as she did on Exam A? Assume that scores on each exam are normally disturbed.
The score that Avery must get on Exam B is given as follows:
470.
What is the z-score formula?The z-score of a measure X of a variable that has mean symbolized by [tex]\mu[/tex] and standard deviation symbolized by [tex]\sigma[/tex] is obtained by the rule presented as follows:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, depending if the obtained z-score is positive or negative.
For exam A, the mean and the standard deviation are given as follows:
[tex]\mu = 350, \sigma = 20[/tex]
She scored 310, hence the z-score of her grade is given as follows:
Z = (310 - 350)/20
Z = -2.
For exam B, the mean and the standard deviation are given as follows:
[tex]\mu = 550, \sigma = 40[/tex]
To do as well as on exam A, she needs a z-score of -2, hence the grade X is obtained as follows:
-2 = (X - 550)/40
X - 550 = -80
X = 470.
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9 divided by 5830 using partial quotients
Answer: 9 ÷ 5830 = 0 with remainder 9 ( 0 R 9 )
can someone help me please?
let's consider two numbers for this case, hmmm say
x = 13
y = 17
so yes, 13 < 17
also true, 13 + 2 < 17 + 2
also true that 2(13) < 2(17)
now, -13 < -17? well, not quite
reason being, the on the negative side of the number line, the closer to 0, the larger the number, for that case, -1 is much much larger than -1,000,000.
Levi invested $8,500 in an
account paying an interest rate of 3.4%
compounded continuously. Assuming no deposits or withdrawals are
made, how much money, to the nearest ten dollars, would be in the
account after 18 years?
The amount of money after 18 years when the interest is compounded continuously is $15725.
What is compound interest?The process of calculating interest and reinvesting it in an account's balance over an infinite number of periods is known as continuous compounding.
Given that Levi invested $8,500 in an account paying an interest rate of 3.4% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars?
The compound interest will be calculated as
[tex]P(t) = P_oe^{rt}[/tex]
[tex]P(t) = 8500\times e^{0.034\times 18}[/tex]
P(t) = 8500 x 1.85
P(t) = $15725
Therefore, the amount of money after 18 years when the interest is compounded continuously is $15725.
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Answer:15670
Step-by-step explanation:
A college is currently accepting students that are both in-state and out-of-state. They plan to accept four times as many in-state students as out-of-state, and they only have space to accept 100 out-of-state students. Let x = the number of out-of-state students and y = the number in-state students. Write the constraints to represent the incoming students at the college.
x > 0 and y > 0
0 < x ≤ 100 and 0 < y ≤ 400
0 < x ≤ 100 and y > 400
0 < x and y < 100
The constraints to represent the incoming students at the college are -
0 < x ≤ 100 and 0 < y ≤ 400
What is an Inequality? What is a expression? What is a mathematical equation?An inequality in mathematics compares two values or expressions, showing if one is less than, greater than, or simply not equal to another value.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have a college is currently accepting students that are both in-state and out-of-state. They plan to accept four times as many in-state students as out-of-state, and they only have space to accept 100 out-of-state students
Now -
[x] = the number of out-of-state students
[y] = the number in-state students
y = 4x
0 < x ≤ 100
and the range of [y] will be -
0 < y ≤ (4 x 100)
0 < y ≤ 400
Therefore, the constraints to represent the incoming students at the college are -
0 < x ≤ 100 and 0 < y ≤ 400
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25 = 10x - 5
What’s the answer
Answer:
the answer would be x=3.
Step-by-step explanation:
when the x is supplemented for the 3, it comes out to 30. by then taking 5 from that, it brings the the number to 25.
Answer:
x = 3
Step-by-step explanation:
25 = 10x - 5
What’s the solution?
25 = 10x - 5
30 = 10x
x = 30 : 10
x = 3
----------------------
Check
25 = 10 x 3 - 5
25 = 30 - 5
25 = 25
the answer is good
what is 6/7 closest to 0,1 or 1/2?
Answer:
1
Step-by-step explanation:
Because 0 is nothing 1 is equal to 7/7 and 1/2 is equal to 3.5/7 so 7/7 is closer to 6/7
Y=-3x-17 and y=x-1
Solving linear systems by substitution
Answer:
x = 8, y = 7
Step-by-step explanation:
The two equations are
y = 3x - 17 [1]
y = x -1 [2]
Substitute y = x - 1 in the first equation
x - 1 = 3x - 17
==> x - 3x = -17 + 1
==> -2x = -16
==> x = -16/-2 = 8
Sub for x in [2]
y = 8 - 1 = 7
Find the missing angle:
RPQ:________
The missing angle RPQ between the intersected chord is 115 degrees.
How to find the angle between intersected chord?The intersecting chords theorem is a statement in elementary geometry that describes a relation of the four line segments created by two intersecting chords within a circle
If two chords intersect inside a circle, then the measure of the angle formed is one half the sum of the measure of the arcs intercepted by the angle and its vertical angle.
Therefore,
∠RPQ = 1 / 2 (arc angle RQ + arc angle SA)
arc angle RQ = 175 degrees
arc angle SA = 55 degrees
Hence,
∠RPQ = 1 / 2 (175 + 55)
∠RPQ = 1 / 2 (230)
∠RPQ = 115 degrees.
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A number is between 41 and46. It has prime factor of 2 and 11. What is the number?
Answer:
The required number lies between 41 and 46 and has prime factors of 2, and 11 is 44.
Step-by-step explanation:
The number lies between 41 and 46 are 42, 43, 44, and 45. From the straightforward observation and according to the condition that must be divisible by 2 and 11 there is only one number that is divisible by both 2 and 11 is 44.
If XY=16, XZ=14, JQ=6, and the radius of the circumscribed circle of triangle XYZ is 10, find QK
Check the picture below.
HELP THANKS SO MUCH THANKS
Answer:
m=4
Step-by-step explanation:
3.6m=14.4
Divide both sides by 3.6
3.6m=14.4
/3.6. /3.6
m=4
hopes this helps please mark brainliest
Answer:
m = 4
Step-by-step explanation:
How do you simplify the square ro
ot of 180 and how do you know that it is in simplest form?
Step-by-step explanation:
[tex] \sqrt{180 } = 6 \sqrt{5} [/tex]
because 6² = 36 and 36×5 = 180
I don't think there's any simple way to do it
G
E (17x-7)
19°
K
H
I
27°
D
K is the incenter of triangle DEF.
What is the value of x?
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20. ASSESS REASONABLENESS Your friend says that when the pool in Exercise 19 is more than 8 feet deep, you will win the race. Is your friend's claim reasonable? Explain your reasoning. pls hurry
Answer:
Step-by-step explanation:
No because the deepness of an pool doesnt affect how fast you will swim during the race
No because the deepness of an pool doesnt affect how fast you will swim during the race.
What is the depth?
Depth refers to a type of vertical distance, where vertical distance is the difference between two vertical positions. One of the most common everyday examples of depth is its use in reference to water.
Here given that,
Your friend says that when the pool in Exercise [tex]19[/tex] is more than [tex]8[/tex] feet deep, you will win the race.
Our swimming speed will never change it does not depend on the depth of the pool.
Hence, depth of the pool does not effect the speed of swimmer.
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100-44+891-812+56/ 1/2
Answer:
93.5
Step-by-step explanation:
What is the Square root of 4x to the 10th power?
Answer:
2x^(5/2)
Step-by-step explanation:
The square root of 4x^10 is (4x^10)^1/2.
Therefore, the square root of 4x^10 is (2x^5)^1/2.
This means that the square root of 4x^10 is 2x^(5/2).
f(x) = 2x³ + 6x² - 5x - 3
H
g(x) = 3x - 4
Find (f - g)(x).
A. (f - g)(x) = 2x³ + 6x² − 8x +1
B. (f- g)(x) = 2x³ + 6x² - 2x + 1
O c. (f-g)(x) = 2x³ + 6x² − 2x - 7
OD. (f- g)(x) = 2x³ + 6x² − 8x - 7
-