Laney pays $0.99 for each song she downloads from the internet. In total, She paid $24.75 for songs from the internet. How many songs does Laney Download
Answer:
25
Step-by-step explanation:
Divide the total cost ($24.75) by the price per song ($0.99) to get the amount of songs bought.
An electrician needs to buy 6 1/4 feet of electrical wire. There are 1 1/4 feet of wire on each spool. How many spools of wire should the electrician buy?
Answer:
5
Step-by-step explanation:
1 1/4 multiplied by 4 is 5 add another 1 1/4 is 6 1/4
This is annoying to work out
Answer:
A is 3, -5
B is -4, -1
Step-by-step explanation:
Hope it helps!!
estimate each product :
1/7 x 20
Answer:
2.85714285714
Step-by-step explanation:
just searched it.
Gina Wilson All Things Algebra Unit 3 Parallel and Perpendicular Lines
Answer:
Parallel lines are lines that do not meet while perpendicular lines are aligned 90 degrees to each other.
Step-by-step explanation:
Imagine two straight lines, drawn side by side to each other with no angle between them. When they are drawn to infinite, no point of one line would touch the other.
Perpendicular lines are two or more line that meets at a point to form a right angle, that is, separated with an angle of 90 degrees to each other.
Which of the following are partial products for 43 x 17
Answer:
731
Step-by-step explanation:
The functions f(x) and g(x) are described below.
f(x) = 7x + 9
g(x) = 7x - 4
The graph of g(x) is obtained by shifting down the graph of f(x) by _____ units.
Answer:
13 units
Step-by-step explanation:
Because the c term (9 for f(x)) represents the y intercept. The y only moves the graph up or down. Since we are trying to get from 9 to -4 move down by 13 units.
A random sample of online music video views and number of guitar sales was measured, and the computer output for regression was obtained: Coefficients Standard Error t Stat P-value Intercept 7.856710924 1.316226455 5.969118 0.001889 Music Video Views 0.094781123 0.027926367 3.393965 0.019378 R-sq. = 69.73%R-sq. (adj) = 63.68% Part A: Use the computer output to determine the LSRL. Identify all the variables used in the equation. Part B: What proportion of the variation of guitar sales is explained by its linear relationship to music video views? Explain. Part C: Determine if increased guitar sales were caused by online music video views. Explain your reasoning.
Answer:
Explained below.
Step-by-step explanation:
The regression analysis output is as follows:
Coefficients Standard Error t Stat P-value
Intercept 7.856710924 1.316226455 5.969118 0.001889
Music Video 0.094781123 0.027926367 3.393965 0.019378
Views
R-sq. = 69.73%
R-sq. (adj) = 63.68%
A
There are two variables used in this study, the independent and the dependent variable.
The independent variable is the number of online music video views and the dependent variable is the number of guitar sales.
B
The coefficient of determination R² specifies the percentage of the variation in the dependent variable (Y) that is forecasted or explained by linear regression and the forecaster variable (X, also recognized as the independent-variable).
Thus, the proportion of the variation of guitar sales that is explained by its linear relationship to music video views is 69.73%.
C
The least square regression line is:
[tex]y=7.856710924+0.094781123\cdot x[/tex]
The least square regression line implies that there is a positive relationship between the guitar sales and music video views. That is as the number of music video views increases the guitar sales increases. And vice-versa.
Thus, increased guitar sales were caused by online music video views.
Eighth grade
Find the slope of the line that passes through (8, 10) and (4, 1).
Answer:
9/4 this Is a fraction
Step-by-step explanation:
1 - 10 = -9
4 - 8 = -4
-9 and -4 turn positive
Solve for k in the proportion.
18
12
=
k
8
wich expression is equivalent to 0.5 * 0.6?
Answer:
0.3
Step-by-step explanation:
Answer:
0.3
Step-by-step explanation:
I hope this is what you where asking for?
1
Funky Fractions
Addition & Subtraction
Mrs. Twinkle walks around a
rectangular park. The park is 212
miles long and 1 3/8 miles wide.
How far does she walk?
Answer:
c
Step-by-step explanation: If you do the math you can clearly see and I got the answer correct.
The average profit/loss of a company (in thousands of dollars) was documented for 30 months. The 5th month showed a loss of $3000, however the 25th month
showed a profit of $5000. Assuming the profitloss is linear, write the equation of the line, in slope-intercept form, that represents the profit/loss for each month x. Use
this result to predict the profit/loss after 60 months
Hint: Use the ordered pairs (5. - 3) and (25,5).
2
The equation of the line in slope-intercept form is y= 5x -5.
(Type an equation using x and y as the variable. Type your answer in slope-intercept form. Use integers or fractions for any numbers in the equation.)
..There would be a of safter 60 months
Answer:
Step-by-step explanation: slope is (9-(-3))/(25-5)
12/20=0.6
point slope formula y-y1=m(x-x1), m slope (x1, y1) point
y-9=0.6(x-25)
y=0.6x-15+9
y=0.6x-6, x months and y profit.
for 60 months, y=0.6*60-6 or 36-6=$30000 profit
The price of shoes is $52.00. If you order them directly from the company on the internet, you can save money and the price is only $42.64. What is the percent change
Answer:18%
Step-by-step explanation:
50.00-42.64=9.36
9.36/52=.18
Answer:
18%
Step-by-step explanation:
$52.00-$42.64= $9.36
[tex]\frac{9.36}{52.00}[/tex] x100
=0.18 x 100
=18%
Time = 2hour +12 mins per lightswitch
She charges her customers a call out fee of £35, plus £30 per hour.
How much should a customer be charged for wiring a house with 10 lightswitch?
Answer:
£395.
Step-by-step explanation:
Call out fee=35
30 per hour = 2 hour to be =60
but,12 minutes in hours= 12/60= 0.2
0.2 = 0.2*30 = 6
2 hours and 12 minutes would be charge as
30 + 6 = 36
36*10 = 360
call out fee + per hour = 35 + 360 + 395
what is 0.125 in a percent
Find the coordinates of the point 7/10 of the way from A (-3,-5) to B (9.4)
Answer:
(-2/17, 5/17)
Step-by-step explanation:
Given the coordinates A (-3,-5) to B (9,4), we are to find the coordinate of the point cutting the line using the ratio 7:10
Using the midpoint formula;
M(X,Y) = {(ax1+bx2/a+b, (ay1+by2/a+b))
Given
x1 = -3, y1 = -5, x2 = 9, y2 = 4, a = 7 and b = 10
get the required coordinates;
X = ax1+bx2/a+b
X = 7(-3)+10(9)/7+10
X = -21+19/17
X = -2/17
Get the Y coordinate;
Y = ay1+by2/a+b
Y = 7(-5)+10(4)/7+10
Y = -35+40/17
Y = 5/17
Hence the required coordinate is (-2/17, 5/17)
How long will it take for the concentration to reach 0.0500 M?
This question is incomplete, the complete question is;
A general reaction written as A + 2B → C + 2D is studied and yields the following rate law: ∆A/∆t = k A².
The initial concentration is 1.000 M and t½=20.00 s.
How long will it take for the concentration to reach 0.0500 M
Answer:
it will take 380 seconds for the concentration to reach 0.0500 M
Step-by-step explanation:
Given that;
A + 2B → C + 2D
initial concentration A₀ = 1 M
half life t1/2 = 20sec
concentration after t time [A_t] = 0.0500 M
∆A/∆t = k A²
This is a second order chemical kinetics
for this order; t1/2 = 1 / [A]₀K
A₀ is initial concentration, K is rate constant, t1/2 is half life
so,
k = 1 / [A₀]t1/2
we substitute
K = 1 / 1.000 × 20
K = 0.05 mol⁻¹L/sec
for second reaction order
1/[A_t] = kt + 1/[A₀]
kt = 1/[A_t] - 1/[A₀]
we substitute
kt = 1/0.0500 - 1/1.000
kt = 20 - 1
kt = 19
substitute the value of k
0.05 × t = 19
t = 19 / 0.05
t = 380 sec
Therefore it will take 380 seconds for the concentration to reach 0.0500 M
What is the purpose of finding the average?
Answer:
The purpose of taking the average of a set of data is to give one a general idea of how the data set is acting or performing as a whole.
Step-by-step explanation:
What is the slope of the line in the graph?
ch
4
3
2+
-54 -3 -1
1 2 3 3 4
4 5
X
-2
-3
4
-5
Answer:
I dont understand what your saying???
Step-by-step explanation:
The slope of the line in the graph is,
⇒ m = 1
What is Equation of line?The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is,
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
Two points on the line are (- 1, 0) and (0, 1).
Now,
Since, The equation of line passes through the points (- 1, 0) and (0, 1).
So, We need to find the slope of the line.
Hence, Slope of the line is,
m = (y₂ - y₁) / (x₂ - x₁)
m = (1 - 0) / (0 - (-1))
m = 1 / 1
m = 1
Thus, The slope of the line in the graph is,
⇒ m = 1
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1. Sally decided to go early Christmas shopping at a local Wal-Mart. There was
a Black Friday sale and she bought a TV that was originally $200. The TV
was marked down 25%. How much did Sally pay after it was marked down?
(1 point)
Answer:
150$
Step-by-step explanation:
In order to find the answer to this question you must find twenty-five percent of two-hundred.
50% of 100 = 50
100% of 100 = 100
100% of 200 = 200
50% of 200 = 100
25% of 200 = 150
= 150$
Hope this helps.
Plot 1/2x-y=4 and 2y=x+6
Answer:
2x+y s with. 3x-2y 7 one of these. 3x+2y ex) (2x-y) (3x-2y)
Step-by-step explanation:
2x+y s with. 3x-2y 7 one of these. 3x+2y ex) (2x-y) (3x-2y)
hope this helped ^^
Nick walked 3/4 of a mile in 12 minutes.How long would it take him to walk three miles at this pace
Answer:
48 minutes
Step-by-step explanation:
First do 3 divided by 3/4 and that gives you 4. Then multiply 4 by 12 and you get 48.
Answer:
45
Step-by-step explanation:
I love math, so this was fun! First, we need to know how long it would take him to walk 1 mile. We know it took 12 minutes to walk 3/4 of a mile, so we just need to figure out how long each quater is. For this problem, each quarter of a mile is 3 minutes, and so we just need to multiply that by 4. then, we know it would take him 15 mintues to walk a mile. Then, just multiply that by 3! Hope this helps, sorry I can't spell :)
2 (5x + 3)
solve and show like terms
Answer:
10x+6
Step-by-step explanation:
you would times the 2 by the 5 and the 2 by the 3 which gives you 10x+6
Given the following table, find the equation that matches it.
Answer:
The equation that matches the table is y = -5x + 7 ⇒ C
Step-by-step explanation:
The form of the linear equation is y = m x + b, where
m is the slope of the lineb is the y-intercept (value y at x = 0)The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where
(x1, y1) and (x2, y2) are two points on the lineFrom the given table
→ Choose any two points from the table
∵ Points (0, 7) and (1, 2) are in the table
∴ x1 = 0 and y1 = 7
∴ x2 = 1 and y2 = 2
→ Substitute them in the rule of the slope above
∵ m = [tex]\frac{2-7}{1-0}=\frac{-5}{1}[/tex]
∴ m = -5
→ Substitute it in the form of the equation above
∵ y = -5x + b
∵ b is the value of y at x = 0
∵ At x = 0, y = 7
∴ b = 7
∴ y = -5x + 7
∴ The equation that matches the table is y = -5x + 7
Evaluate
4(x+3)(x+1)/(x+5)(x-5) x=3
Answer:
-6
Step-by-step explanation:
The value of the given expression will be equal to -3.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The solution to the expression is:-
= 4( x + 3 ) ( x + 1 ) / ( x + 5 ) ( x - 5 )
= 4( 3 + 3 ) ( 3 + 1 ) / ( 3 + 5 ) ( 3 - 5 )
= ( 4 x 6 x 4 ) / ( 8 x -2 )
= -3
Therefore the value of the given expression will be equal to -3.
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Find value of x in triangle
Answer:
110
Step-by-step explanation:
Ik
Answer:
32
Step-by-step explanation
for this triangle the 2 missing angles are the same angle so subtract 116 from 180 to find the sum of the 2 angles then divide
EASY QUESTION
Digit is working on the probabilities of spinning each food item in his game.
The spinner is divided into 12 equally sized sections, and each section contains a food item from the menu, as shown here.
Cured pasta & bear is labeled on 1 section.
Baked cucumber & lime mutton is labeled on 2 sections.
Poached fennel & lemon alligator is labeled on 1 section.
Pressure-cooked mushroom & garlic chicken is labeled on 2 sections.
Praline wafer is labeled on 1 section.
Gooseberry & passion fruit cheesecake is labeled on 2 sections.
Oven-baked apple & lavender calzone is labeled on 3 sections.
Based on the rules Digit created, which option has the greatest probability?
P({x:x is praline wafer})
P({x:x is oven-baked apple & lavender calzone})
P({x:x is cured pasta & bear})
P({x:x is cucumber & lime mutton})
P({x:x is poached fennel & lemon alligator})
P({x:x is pressure-cooked mushroom & garlic chicken})
P({x:x is gooseberry & passion fruit cheesecake})
Answer:
im pretty sure it's P({x:x is oven-baked apple & lavender calzone })
Step-by-step explanation:
its the one with the biggest section
What does 8EE4 represent?
Which statement best describes the leaf structures of monocots and dicots?
Dicots have narrow leaves with parallel veins, and monocots have broad leaves with a network of veins.
Monocots have narrow leaves with parallel veins, and dicots have broad leaves with a network of veins.
Dicots have narrow leaves with a network of veins, and monocots have broad leaves with parallel veins.
Monocots have narrow leaves with a network of veins, and dicots have broad leaves with parallel veins.
Answer:
can you space it plz
Step-by-step explanation:
Answer:
The correct answer is choice B.
Step-by-step explanation:
Monocots differ from the dicots In the structural features of the leaves, the stems, roots, and flowers. The differences start from the very beginning of the plant's life cycle: the seed. Monocots have one cotyledon, while dicots have two. When it comes to leaves, monocots have narrow leaves with the typical parallel leaf veins. Dicots have broad leaves with a network of netted leaf veins.