Answer: 1)2x=4 -> 4/2 = 2 so x=2
2) y=0
3) x=3
4) 2y + (3*3y) = -15
11y=-15
y = -15/11
5) 4x + 7x + 63 = 19
11x = -44
x = -4
Step-by-step explanation:
Harry catches the train from Belfast to Dublin at 4pm. The average speed of the train is 70 mph and the distance between Belfast and Dublin is 105 miles. What time does Harry arrive in Dublin?
Answer:
[tex]Arrival\ Time = 5:30\ pm[/tex]
Step-by-step explanation:
Given
[tex]Current\ Time = 4pm[/tex]
[tex]Speed = 70mph[/tex]
[tex]Distance = 105miles[/tex]
Required
Determine the arrival time
First, we calculate the time taken from Belfast to Dublin using:
[tex]Speed = \frac{Distance}{Time}[/tex]
Substitute values to the expression.
[tex]70 = \frac{105}{Time}[/tex]
Cross Multiply
[tex]70 * Time = 105[/tex]
[tex]Time = \frac{105}{70}[/tex]
[tex]Time = 1.5\ hour[/tex]
Arrival time is then calculated as:
[tex]Arrival\ Time = Current\ Time + Time\ Taken[/tex]
[tex]Arrival\ Time = 4pm + 1.5\ hour[/tex]
[tex]Arrival\ Time = 5:30\ pm[/tex]
Can someone please help me? If it is correct ai will give Brainliest
Thank you
9514 1404 393
Answer:
A
Step-by-step explanation:
Collecting terms of the expression, we have ...
x + 0.1x = x(1 +0.1) = 1.1x
In words, adding 10% is the same as multiplying the value by 1.1. Choice A is appropriate.
If the gas station is selling 5 bottles of water for $10, what is the unit price of each bottle of water?
Answer:
2
Step-by-step explanation:
5 bottles = 10 dollars
divide by 5 to get 1 bottle
now divide 10 by 5 that will be 2
2$ for 1 bottle
Jason purchased 3 popcorns and 2 soft drinks for a total of $15.50.
Ann purchased 4 popcorns and 3 soft drinks for a total of $22.00.
how much does a single soft drink cost?
What is the quotient of 6 and Negative one-half?
–12
Negative StartFraction 1 over 12 EndFraction
StartFraction 1 over 12 EndFraction
12
Answer:
-1/12
Step-by-step explanation:
Answer: B
Step-by-step explanation: EDGE 2022
which one is it???? .
Answer:
option A, I guess .....
.
1+y=-4/5x-2
Solve for Y
Step-by-step explanation:
y=-4/5x-2-1
y=-4/5x-3
y/4=5x-3
(y/4)-3 =5x
(y-12)/4=5x
The solution for y will be y = -4/5x-3
What is expression?Numbers, symbols and operators grouped together that show the value of something.
Given an expression, 1+y=-4/5x-2
Solving for y, we get
1+y=-4/5x-2
y = -4/5x-2-1
y = -4/5x-3
Hence, The solution for y will be y = -4/5x-3
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The table shows the number of gallons of water, 9.
that a water pump transfers in s seconds. How many
gallons of water are pumped per second? What is an
equation for the gallons of water, g, that the station
can pump in s seconds?
Answer:
G = 0.75s
Step-by-step explanation:
First find the unit rate: How many gallons of water can be pumped in 1 second. This means you just have to divide by however many seconds it is being pumped. I'm using 12 and 9. 9/12 = 0.75. This means that in 1 second 0.75 or 3/4 of a gallon will be pumped. Therefore:
G = 0.75s
I keep getting stuck does anyone know the solution?
x=y+4 2x+2y=16
Answer:
Y = 2
X = 6
Step-by-step explanation:
Hope this helps. Pls give brainliest.
4) Which pair of triangles is congruent by Angle - Angle- Side
Answer:
2
Step-by-step explanation:
Two angles are congruent, and one side is congruent in the pair of triangles, option 2.
Answer:
2 should be the answer
Step-by-step explanation:
since two angles are equal and one side in equal you can write triangle ABC=TAY by angle angle side axiom
55.57
What is the equation of the line that is parallel to the
given line and passes through the point (12, -2)?
Oy=-x +10
Oy=-x + 12
Oy=-x- 10
Oy=x - 12
Answer:10
Step-by-step explanation:and a slope 2/12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.Aug
The equation of the line that is parallel to the given line and passes through the point (12, -2) is y = 5/6(x)-12
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The slope of line passing through the points (12, 6) and (0, -4)
Slope = -4-6/0-12
=-10/-12
=5/6
Now let us find y intercept passing through (12, -2)
-2=5/6(12)+b
-2=10+b
-12=b
Hence, the equation of the line that is parallel to the given line and passes through the point (12, -2) is y = 5/6(x)-12
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A pair of pants at Cool Topic originally cost $69. They are on sale for $52. What is the markdown? ________________ What is the percent markdown? (round to the nearest whole percent) _______________
Answer:
27.4%
Step-by-step explanation:
Step one:
given
original cost $69
seling price $52
Required
The percent reduction
Step two:
% reduction= change in price/original price*100
% reduction= 69-52/62*100
% reduction=17/62*100
% reduction= 0.274*100
% reduction= 27.4%
If one mile equals 5,280 feet, how many feet are in 7 miles?
754 feet
1,326 feet
3,696 feet
36,960 feet
Answer:
36,960
Step-by-step explanation:
multiply 5280 by 7
Drag a description to match each equation
Answer:
welp umm no one can answer lol
Step-by-step explanation:
A snail can move about 10 meters in 1000 seconds. How many seconds does it take the snail to move 1 meter
Answer:
100 seconds my dude
Step-by-step explanation:
...............
Answer:
100
Step-by-step explanation:
What is the average rate of change of f over the interval -1
on a separate sheet of paper and upload the work as a photo. Show all
appropriate work necessary for full credit.
f(x)=
x² - x - 1
Answer:
Average rate of change for the function [tex]f(x)= x^2-x-1[/tex] over the interval -1<x<1 is -1
Step-by-step explanation:
We need to find average rate of change of f over the interval -1 < x < 1
The function given is: [tex]f(x)= x^2-x-1[/tex]
The formula used to find average rate of change is:
[tex]Average\:rate\:of\:change=\frac{f(b)-f(a)}{b-a}[/tex]
We have, a = -1 and b = 1
Finding f(b) when b=1
[tex]f(x)=x^2-x-1\\f(1)=(1)^2-(1)-1\\f(1)=1-1-1\\f(1)=-1[/tex]
Now, finding f(a), when a= -1
[tex]f(x)=x^2-x-1\\f(-1)=(-1)^2-(-1)-1\\f(1)=1+1-1\\f(-1)=2-1\\f(-1)=1[/tex]
Now, putting values and finding average rate of change
[tex]Average\:rate\:of\:change=\frac{f(b)-f(a)}{b-a}\\Average\:rate\:of\:change=\frac{f(1)-f(-1)}{1-(-1)}\\Average\:rate\:of\:change=\frac{-1-(1)}{1-(-1)}\\Average\:rate\:of\:change=\frac{-1-1}{1+1}\\Average\:rate\:of\:change=\frac{-2}{2}\\Average\:rate\:of\:change=-1[/tex]
So, average rate of change for the function [tex]f(x)= x^2-x-1[/tex] over the interval -1<x<1 is -1
find the third proportion to 8 and 12
Answer:
let the third proportion be x.
then 8,12 and x are in proportion
then 8:12=12:x
8x=12×12
x=144/8=18
Step-by-step explanation:
2x+3y=12
find the missing values
pm - qrp = 5n; solve for p
Answer:
P=5n/m-qr
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
a bamboo shoot is 20 inches tall at day zero
Answer:
ok, and?
Step-by-step explanation:
Next time you post a question. Make sure it is complete
What is the product?
3 6 1
2
24 OX|0
0 6 2
1
Answer:
[7]
[4]
[2]
Step-by-step explanation:
The first matrices has 3 rows and 3 columns.
The second matrices has 3 rows and 1 column.
Therefore, your result with have 3 rows and 1 column because the smaller row and column is used.
Solve:
[3 * 2 + 6 * 0 + 1 * 1] [7]
[2 * 2 + 0 * 0 + 0 * 1] = [4]
[0 * 2 + 6 * 0 + 2 * 1] [2]
6. Choose the correct common fraction.
1/2
2/3
0.1
0.5
Answer:
1/2 most likely everyone says "half" instead on "point five"
Answer:
Step-by-step explanation:
The answer is 2/3 because it can not be represented in any other way
Probability of getting a 12
Answer:
1/36
Step-by-step explanation:
In two six-sided dice, there is only one way of getting a 12. That is with 2 6s.
There are a total of 36 possibilities (6^2). 1/36
Hope this helps!
Stephanie is a wedding planner. She has assigned 4 workers for decorating tables with flower bouquets. There are 18 tables at the wedding. If Stephanie increases the number of workers to 8, the tables will be decorated twice as quickly.
Which statement best describes the number of tables in this situation?
A. The number of tables is an independent variable.
B. The number of tables is a dependent variable.
C.The number of tables is neither an independent nor a dependent variable.
D. The number of tables is both an independent and a dependent variable.
Thank you for helping me (:
Answer:
A
Step-by-step explanation:
Because, you can increase or decrease the number of worker for each table but number of tables will be the same
Answer:
C the person above me is incorrect.
AStep-by-step explanation:
PLS HELP ITS DUE TODAY!!
If you have 75 Dollars, then number of nickels, y
- y = 75 ÷ 20
- y = 20 x 75
- y = 20 ÷ 75
Answer:
y=20x75 is the answer
Step-by-step explanation:
You can basically eliminate other two choices since they are division
2(x + 7) + 3 x = 12
what is the first step In solving this equation for x?
Answer:
The first step would be to distribute that 2 into the numbers in the parenthesis.
Step-by-step explanation:
Answer:
Step-by-step explanation:
I feel like there are many ways to begin this problem, but I'd distribute the 2(x+7) so that you are left with 2x+14. This way you can add 2x and 3x and subtract 14 to the other side.
Find the slope of the line
that goes through the given
points
t
(1,2) (3,-4)
I
1
Answer:
Step-by-step explanation:
y2-y1=
x2-x1
2--4=6(negatives cancel out)
3-1=2
so 6/2 =3
3 is slope
What types of lines create alternate interior angles?
a) Parallel lines cut by a transversal
b) Three parallel lines
c) Any two intersecting lines
d) Perpendicular lines
А
B
C
D
A statistical procedure that estimated regression equation coefficients that produce the lowest sum of squared differences between the actual and predicted values of the dependent variable is called .
Answer:
Ordinary least squares
Step-by-step explanation:
The ordinary least squares means the estimations that done for parameters in a regression model by lowering the sum of the square residuals. It also predicted the coefficient of the regression equation that generate the actual and the expected values of the dependent variable is known as ordinary least squares
Therefore the above represent the answer
Find the measure of angle x. _
[tex]x + 120 = 180[/tex]
(linear pair of angles)
[tex]x = 180 - 120[/tex]
[tex]x = 60[/tex]