Answers
Answer:
265.1
Step-by-step explanation:
10% = 0.1
15% = 0.15
0.1(42)(8) + 0.15(14)(15) + 200 = 33.6 + 31.5 + 200 = 265.1 - total amount Adam earned last week.
Related Questions
pls help me with this!
Answers
Answer:
(25 and 8) = 200
(32,24 and 18) =288
(22 and 4)=44
(14 and 12) = 84
(9,8 and 7)= 504
(27,12 and 36) =108
pleaseee hellppp meeee
Answers
Answer:
The y-intercept is -3.2
what is the common denominater of 1/5 and 7/10
Answers
Answer:
10 010 10 10 10 10 101 01 mo1
Step-by-step explanation:
The domain of the function f(x) = -2x is restricted to the positive integers. Which values are elements of the range?
2
-4
0
-6
4
-2
6
Answers
9514 1404 393
Answer:
{-6, -4, -2}
Step-by-step explanation:
If the domain is positive integers, the range is negative even integers. The only ones on the list are ...
-2, -4, -6
Water is leaking out of an inverted conical tank at a rate of 10700 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 8 meters and the diameter at the top is 3 meters. If the water level is rising at a rate of 26 centimeters per minute when the height of the water is 2.5 meters, find the rate at which water is being pumped into the tank in cubic centimeters per minute.
Answers
Solution :
The diameter of the tank = 3 m = 300 cm
Radius of the tank = 1.5 m = 150 cm
Height of the tank = 8 m = 800 cm
The rate of increase of height of water level = 26 cm/min
∴ [tex]$\frac{dh}{dt} = 20 \ cm/min$[/tex]
The water is leaking at a rate of = 10700 cubic centimeters per min
∴ rate out = 10,700 [tex]$cm^3 / cm $[/tex]
At time 't', the height of water level is 'h' with radius 'r' and volume 'V'.
By the property of similarity of triangles we can write
[tex]$\frac{h}{r} = \frac{800}{150} $[/tex]
[tex]$\frac{h}{r} = \frac{16}{3} $[/tex]
[tex]$r = \frac{3}{16}h$[/tex]
Volume of water at time 't' is given as
[tex]$V= \frac{1}{3} \pi r^2 h $[/tex]
[tex]$V= \frac{1}{3} \pi \left(\frac{3}{16}h\right)^2 h $[/tex]
[tex]$V =\frac{3}{256} \pi h^3$[/tex]
Now differentiating w.r.t 't'
[tex]$\frac{dv}{dt} = \frac{9}{256} \pi h^2 \frac{dh}{dt}$[/tex]
The rate of increase in tank = rate of inward flow - rate of outward flow
[tex]$\frac{dv}{dt} $[/tex] = rate of inward flow - 10,700
rate of inflow = 10,700 + [tex]$ \frac{9}{256} \pi h^2 \frac{dh}{dt}$[/tex]
Substituting the values we get
rate of inflow = 10,700 + [tex]$ \frac{9}{256} \times 3.14 \times (250)^2 \times 26$[/tex]
∴ rate of inward flow = [tex]$1.9 \times 10^5 \ cm^3/min$[/tex]
Each person who applies for an assembly job at Robert’s Electronics is given a mechanical aptitude test. One part of the test involves assembling a plug-in unit based on numbered instructions. A sample of the length of time it took 42 persons to assemble the unit was organized into the following frequency distribution. Length of Time (in minutes) Number 1 up to 4 4 4 up to 7 8 7 up to 10 14 10 up to 13 9 13 up to 16 5 16 up to 19 2 What is the standard deviation (in minutes)? 17.00 6.01 3.89 8.78
Answers
Answer:
3.89 minutes
Step-by-step explanation:
Firstly, we have this in a table using the range
There are 6 ranges
We put the frequency alongside
Afterwards we calculate the midpoint of the range
For example, midpoint of range 1-4 is (1+4)/2 = 5/2 = 2.5
We multiply the midpoint by the frequency which gives another column
Then we calculate the mean, where the mean is the summation of all frequencies and their midpoints
We subtract each midpoint from the mean, square the results, then multiply each by their frequency
Lastly, we apply the standard deviation formula
Please check attachment for the tabular representation and formulas
Which stalement correctly describes the diagram?
Answers
triangel b is a reflection of triangle a the x-axis triangle c
When using best subsets regression with a model that has four independent variables, a total of ________ different combinations of regression models will be considered.
a. 4
b. 15
c. 12
d. 18
Answers
Answer:
b. 15
Step-by-step explanation:
Given that:
There are 4 independent variables, then the subset regression total is 2⁴ = 16 attainable regression model.
However, out of these 16 regression models, 1 Model contains no predictors which only intercept 3 Model with [tex](X_1), (X_2), (X_3)[/tex], 3 Model with[tex](X_1,X_2), (X_1,X_3), (X_2,X_3)[/tex]. and 1 Model which comprises all the independent variables.
Therefore, when applying best subsets regression with a model that possesses four (4) independent variables, the number of different combinations of regression models that can be considered is 15.
Consider the figure below. If ∆ABC is translated using the vector (x, y)→(x−3, y+3), then rotated 180° about the origin, what will be the x-coordinate of C’ ?
Answers
Answer: -7
Step-by-step explanation:
I’m doing the test
If you divide a polynomial f(x) by the factor (x - 4), the remainder will be equal to f(-4). true or false ?
Answers
Answer:
FALSEStep-by-step explanation:
Given the polynomial f(x) divided by x-4
To check whether the remainder will be equal to f(-4), we need to get whether the value of x is -4 if we set x-4 to zero as shown;
x- 4 = 0
Add 4 to both sides
x - 4 + 4 = 0+4
x = 4
Since the value of x is 4 not -4 hence the remainder will NOT be equal to f(-4). The answer is false
write 5,020,700 in expanded form
Answers
Solution: 5,000,000 + 20,000 + 700
5,000,000+20,0000+700
Please hurry and help me!
Answers
Answer:
The first one is 13/20 second one is 13/25 and the third is equally likely
Step-by-step explanation:
Kathy sells lotion. For each bottle she sells she gets paid $3. If Kathy said 48 bottles at a trade show last weekend, and another 30 bottles this weekend, how much money would Kathy make?
Answers
Answer:
234
Step-by-step explanation:
48 x 3=144
30 x 3=90
144+90=234
PLEASE HELP PLEASEEEEEE
Answers
Answer:1) 9/8×4/3
2)9/8÷3/4
3)3/2
Step-by-step explanation:
Help it’s 6 grade math
Answers
Answer:
the mean is 55.6; if she redid the D and F papers the mean would increase because you would get a higher average than before. Higher scores mean that the number that you add are larger evidently ending up in a larger value
Step-by-step explanation:
if you want to find mean, all you do is add the numbers together and then divide by the total number of values that you added.
so this would be 74+12+61+86+45 and that is 278. Then there is a total of 5 so you divide 278 by 5 which gives you 55.6.
The graph represents the journey of a bus from the bus stop to different locations Bus Journey 4 Distance (miles) La 5 X Time (hours) Part A: Use complete sentences to describe the motion of the bus in parts 1, 2, 3, 4, and 5 of the journey (4 points) Part B: In which parts of the graph is the function increasing, decreasing, and constant? (4 points) Part C: Is the graph linear or non-linear? Explain your answer (2 points)
Answers
Answer: if the bus takes 5 hours to go the distance then it will take the y,x distances to go the 5 hours.
Step-by-step explanation:
The cashier counts 80 bills, all with the same value. She gets a total of $800. What is the value of each bill?
help
Answers
9. Jack has $5.90 in spare change in his pocket. All of the coins are nickels and quarters. If
he has 50 coins total, how many of each coin does he have? (Use a system of equations
to solve algebraically. Identify your variables.)
Answers
Answer:
33 nickels, 17 quarters
Step-by-step explanation:
q=quarters, n=nickels
Since total number of coins = 50 and he only has quarters and nickels,
q + n = 50.
Since a quarter is 0.25 dollars, a nickel is 0.05 dollars, and his total is $5.90,
0.25q + 0.05n = 5.90
Multiply the entire second equation by -4 to get -q and eliminate q from both equations: -4(0.25q + 0.05n = 5.90)
So, q + n = 50
And -q -0.2n = -23.6
Cancel q's and add down to combine both equations, so 0.8n = 26.4
Solve for n by dividing 0.8 by both sides, so n = 33
Plug n back into the first equation: q + 33 = 50 and q is thus 17.
Hope this helps!
Which shows a rational number plotted correctly on a number line?
A number line going from negative 8 to positive 4 in increments of 2. There are 4 equal spaces between each number. Negative 3.5 is plotted on the mark 1 space to the left of 4.
A number line going from negative 20 to negative 10 in increments of 2. There are 4 equal spaces between each number. Negative StartFraction 21 Over 2 EndFraction is plotted on the mark 1 space to the left of negative 10.
A number line going from negative 10 to positive 4 in increments of 2. There are 4 equal spaces between each number. Negative StartFraction 7 Over 2 EndFraction is plotted on the mark labeled negative 6.
A number line going from negative 2 to positive 8 in increments of 2. StartFraction 9 Over 2 EndFraction is plotted on the mark 1 space to the left of 4.
Answers
Answer:
A number line going from negative 20 to negative 10 in increments of 2. There are 4 equal spaces between each number. Negative StartFraction 21 Over 2 EndFraction is plotted on the mark 1 space to the left of negative 10.Step-by-step explanation:
A number line going from negative 8 to positive 4 in increments of 2. There are 4 equal spaces between each number. Negative 3.5 is plotted on the mark 1 space to the left of 4.
Incorrect. - 3.5>-4 and should be to the right of -4A number line going from negative 20 to negative 10 in increments of 2. There are 4 equal spaces between each number. Negative StartFraction 21 Over 2 EndFraction is plotted on the mark 1 space to the left of negative 10.
Correct. -21/2 = -10.5 < -10 is one space to the left of -10A number line going from negative 10 to positive 4 in increments of 2. There are 4 equal spaces between each number. Negative StartFraction 7 Over 2 EndFraction is plotted on the mark labeled negative 6.
Incorrect. -7/2 =-3.5 > -4 should be to the left of -4.A number line going from negative 2 to positive 8 in increments of 2. StartFraction 9 Over 2 EndFraction is plotted on the mark 1 space to the left of 4.
Incorrect. 9/2 = 4.5 > 4 should be to the right of 4.Answer:
B
Step-by-step explanation:
Trust me on this, also can I have brainiest please?
Hope you do well! :D
PLS PLS HELP! WILL GIVE BRAINLIEST IF ALL QUESTIONS ARE ANSWERED AND IF THEY’RE RIGHT!
Brad made a graph showing how many students were absent from school every day last week.
Use the graph to answer the questions.
1. List the ordered pairs for the graphed points.
Write your answer in the space below.
2. How many students were absent on day 3? Explain how you know.
Write your answer in the space below.
3. On which day were the greatest number of students absent? How many students were absent that day?
Write your answer in the space below.
4. Is the relation represented by the graph a function? Why or why not?
Write your answer in the space below.
Answers
Answer:
1. (1,7),(2.10),(3,5),(4,7),(5,9)
2. There were 5 students absent on day 3. I know because it shows on the graph.
3. Day 2 was the greastes number of studnets absent. There were 10 students absent that day.
4. The relation represented is a function becasue for each x-value there is only one y-value.
Step-by-step explanation:
PLEASE HELP!! FAST 20 POINTS
Answers
0.2(3a + 6b) use distributive property
Answers
Answer:
0.6 a + 1.2 b
Step-by-step explanation:
41°
40°
X
X
O 40
39
0 41
Answers
Answer:
39
Step-by-step explanation:
just had it.
If isosceles triangle ABC has a 130° angle at vertex B, which statement must be true?
O mZA= 15° and mzC= 35
O mZA+ mZB = 155°
O mZA+ mzC = 60
OMZA= 20° and m2C=30
Answers
Answer:
Option B m<ZA+m<ZB = 155° is correct option.
Step-by-step explanation:
We know that sum of angles of triangle is equal to 180°
And Isosceles triangle, 2 angles are same
So, let Angle 1 = x
Angle 2 = x
Angle 3 = 130°
Finding values of angle x
x+x+130=180
2x=180-130
2x=50
x=25
So, Angle 1 = 25 °
Angle 2 = 25°
As, angle B is greater than 90°, the sum of angles added must be greater than 90°
So, Option A, C and D can't be correct, as their sum is less than 90°
Option B m<ZA+m<ZB = 155° is correct option.
Verify:
m<ZA = 25° (as found earlier)
m<ZB = 130° (given)
So, m<ZA+m<ZB = 155°
25°+130° = 155°
The true statement about the given angles of the triangle is m∠A + m∠B = 155⁰.
Sum of angles of Isosceles triangle
The sum of angles of Isosceles triangle must add up to 180 degrees.
Base angles of the Isosceles triangleLet the base angles = x and x
x + x + 130 = 180 (sum of angles in a triangle)
2x + 130 = 180
2x = 180 - 130
2x = 50
x = 25
Given angle B = 130°
B + A = B + C = 130 + 25 = 155°
Thus, the true statement about the given angles of the triangle is m∠A + m∠B = 155⁰.
Learn more about angles of Isosceles triangle here: https://brainly.com/question/155625
How do I solve this? Do I have to divide and do other steps?? Help please :/
Answers
Step-by-step explanation:
its decreasing so 2007 had 84.134 sheep farms so u gotta subract by a number to year 2080 and to get 79.300
what is the cube root of -3375?
Answers
PLZ Help!!! Best answer gets Brainliest!!!
Answers
Answer:
yes it is a proportional relationship
Step-by-step explanation:
:) gl!
Which phrase represents the meaning of the symbol ?
O less than
O equal to
O greater than
O divided by
Answers
Answer:
C. Greater than.
Step-by-step explanation:
Answer:
greater than
OR
C.
Would the space in between 2 transversals be an interior angle?
Answers
Answer:
When the two lines being crossed are Parallel Lines the Consecutive Interior Angles add up to 180°. so yes
Step-by-step explanation:
Help quick please algebra one
Answers
Answer:
b. (5,-2)
Step-by-step explanation:
When we substitute the x and y values into the equation and simplify the equation we end up with these equations:
-2 ≤ 0
-2 ≥ -9
Once simplified, the equations are proven to be correct.
(I hope this helps)
Answer:
The answer is B, (5,-2)
Step-by-step explanation:
If you input the x and y values from (5,-2) into the system on inequalities both the equations end up being true, while all the other make one or more solution set incorrect when you input the x and y values.