Answer:
270 seconds
Step-by-step explanation:
Melissa's time = x seconds
Abby's time = (x + 30) seconds
Abby walks at a speed of 8 feet per second, and Melissa walks at a speed of 9 feet per seconds.
But, speed = [tex]\frac{distance}{time taken}[/tex]
For Abby,
8 = [tex]\frac{distance}{(x + 30)}[/tex]
distance = 8(x + 30) ................. 1
for Melissa,
9 = [tex]\frac{distance}{x}[/tex]
distance = 9x ............. 2
From equations 1 and 2, for the same distance;
8(x + 30) = 9x
8x + 240 = 9x
x = 240 seconds
Abby's time = (x + 30)
= (240 + 30)
= 270 seconds
So that Abby has been walking for 270 seconds when both students had walked exactly the same distance.
The time taken is 270 seconds.
Given that,
Two students, Abby and Melissa go for a walk. Abby begins walking 30 seconds earlier than Melissa . Abby walks at a speed of 8 feet per second. Melissa walks at a speed of 9 feet per second.Here we assume Melissa time be x and Abby time be x + 30Based on the above information, the calculation is as follows:
8(x + 30) = 9x
8x + 240 = 9x
x = 240
So Abby time should be
= 240 + 30
= 270
Learn more: brainly.com/question/17429689
i need help pleaseeee
Answer:
I did this question just the other day. The answer you are looking for is B or the second one.
Step-by-step explanation:
I count on in equal steps.
My first number is -9, my fifth number is 7.
-9
2
7
T
What is my third number?
You can solve it by A. P
A5=7,A1=-9
A5=A1+4D
D=4
A3=A1+2D
=8-9=-1
A line passes through the point (8, -9) and has a slope of 3/4 . Write an equation in point-slope form for this line.
Answer:
y+9=3/4(x-8)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-9)=3/4(x-8)
y+9=3/4(x-8)
Find the volume of each prism. Show your work for full credit!
Answer:
1080
Step-by-step explanation:
1/2*base area*h
se acabaron los bidones de 10 y se quieren envasar 1362 litros de agua ¿cual es la menor cantidad de envases que se pueden llenar?
Answer:
serían 136 y sobran 2
Step-by-step explanation:
porque al ser una botella de 10 litro y 1362 los dividimos nos da la cantidad de 136 se puede hacer mentalmente
y varies directly as x and z. Y is equal to 16 when x=2 and z=4,find Y when x=1 and z=7
Answer:
here's one way: z^x = Y, 7^1 = 7
Y = 7
Step-by-step explanation:
ILL GIVE 50 POINTS
Which set of statements explains how to plot a point at the location (Negative 3 and one-half, negative 2)?
Start at the origin. Move 3 and one-half units right because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between 3 and 4. Move 2 units down because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units left because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units right because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units left because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units down because the y-coordinate is -2.
Answer:
Option 3 is right
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units right because the y-coordinate is -2.
Hope this helps:)
It is B from my point of view
Item 4 Write a proportion to find how many points x a student needs to score on a test worth 50 points to get a test score of 40%
Answer:
20 points
Step-by-step explanation:
We need to find how many points x a student needs to score on a test worth 50 points to get a test score of 40%.
Let x be the number of points.
ATQ,
[tex]\dfrac{x}{50}=\dfrac{40}{100}\\\\x=\dfrac{50\times 40}{100}\\\\x=20[/tex]
Hence, a student needs 20 points to get a score of 40%.
PLZ HELP
Maya exercises at least 50 minutes per day.
Use t to represent Maya's amount of exercise (in minutes per day).
Answer:
425261625
Step-by-step explanation:
1+2-4252+425251-34%+5%
Find the missing side !!
Answer:
36?
Step-by-step explanation:
hey... what's
[tex](a {}^{2} - b {}^{2} ) = [/tex]
Answer:
[tex](a^{2} - b^{2} ) = (a + b)(a - b)[/tex]
Step-by-step explanation:
This is the Difference of Squares: [tex](a^{2} - b^{2} ) = (a + b)(a - b)[/tex].
Hope it helps!
it is (a + b) ( a - b )
hope it helps
In a math statement 4^9 the 9 is called the
Answer:
exponent
Step-by-step explanation:
cuz that s what it is called
Answer:
expo
Step-by-step explanation:
give them brain, they're correct.
Please help explain the easiest way
Answer:
60 m
Step-by-step explanation:
Triangle formula:
Find the total price of a $13.99 movie after a sales tax of 8% is added. what is the total amount *
Answer:
15.10 I believe
Step-by-step explanation:
which images shows a reflection
I'll Give You Some Hints:
Let's Look at C.
In C, the triangle is translated 2 units to the right. Which means that it cannot be a reflection.
Let's Look at B.
In B there is a sideways triangle. That means it's a Rotation. Which means it's not Reflected.
Lastly, Let's Look at A.
To get from the original triangle to the triangle in A, you have to reflect twice. Once along a vertical line, and then along a horizontal line.
This Information Should Help You
PLSSSSS HELP DUE IN 3 min Write the equation of the line in fully simplified slope-intercept form.
what is 6 times 3 plus 8 minus 1 and then divided by 8
Answer:
25.875
Step-by-step explanation:
6*3+8-1/8
18 + 8 - 1/8
25.875
Mrs. Kim bought
4
4 boxes of stickers at the store to share with her students. Each box contained
64
64 stickers.
Answer:
She has 256 stickers.
Step-by-step explanation:
4 times 64 equals 256
Given that f(x)=2x−5 and g(x)=5x, evaluate g(f(2))
Find the percent of increase from 12.5 inches to 18.5 inches. Round the percent to the nearest tenth if necessary.
Answer:
148%
Step-by-step explanation:
12.5x = 18.5
Meg and Rosa played a game. The game lasted 35 minutes and ended at 10:20 a.m.
What time did the girls begin playing the game?
Answer:
9:45 am
Step-by-step explanation:
Hope this helps!
Answer:
10:15
Step-by-step explanation:
Name two points on the line y = 6x. Does it describe a
proportional relationship?
Answer:
b. Non-proportional
Step-by-step explanation:
A table of values that represents a proportional relationship will have the same ratio of every pair in the given table. That is, y/x will result in the same value all through for every given pair.
The table of values given does not show a proportional relationship, because the ratio of y to x of each given pair of values are different and unequal:
y/x = 3/1 ≠ 5/2 ≠ 7/3 ≠ 9/4
Therefore, it is non-proportional.
hope i help
point slope and slope intercept
Answer:
Step-by-step explanation:
Observe what happens to y if we move from x = 1 to x = 9: y decreases by 2. Thus, the slope of the line in question is m = rise / run = -2/8, or -1/4.
Writing the equation in point-slope form, y - k = m(x - h), we get:
y - 7 = (-1/4)(x - 1) (point-slope form)
Solving for y results in the slope-intercept form:
y = 7 - x/4 + 1, or
y = (-1/4)x + 8 (slope-intercept form)
In election,a candidate got
82 % votes.He won the election beating his rival in candidates by 576 votes.How many votes were polled?
#The first one to answer will mark brain list. And answer should be correct.
Answer:
703 votes
Step-by-step explanation:
703 times 0.82 equals 576.46
What's -2/9 * 5/6? I'm a bit stuck.
Answer:
-2/9*5/6
As it is multiplication we can directly multiply them.
Thus we will get,
(-2*5)/(9*6)
-10/54
And now by converting into the simplest form we will get,
-5/27
And this is the final answer.
Simplify (3x - 5) + (5x + 1). (1 point)
оа
8x - 6
Oь
8x +4
Oc
8x - 4
Od
2x - 4
Answer:
The answer is C. 8x - 4
Step-by-step explanation:
Eliminate the redundant parentheses.
(3x - 5) + (5x + 1)
3x - 5 + 5x + 1
Add the numbers.
3x - 5 + 5x + 1
3x - 4 + 5x
Combine like terms.
3x - 4 + 5x
8x - 4
The price of a flight was increased by 3% to £720. What was the price before the increase?
Give your answer to the nearest penny.
Help me with question 1
Answer:
The most logical answer would be C.
Step-by-step explanation:
Find the volume of the given shape. Round your answer to the nearest
tenth if necessary.
*
Answer:
4,084
Step-by-step explanation:
Volume of a cylinder formula [tex]v=\pi r^{2} h[/tex]
h = 13ft
r = 10ft (20/2)
Then you solve
[tex]v=3.14*10^{2}*13\\\\v=3.14*100*13\\v=314*13\\v=4,082[/tex]
This is a bit confusing for me, can anyone help me out?
Answer:
circumference=471
area=17671
Step-by-step explanation:
circumference=150pi=150*3.14=471
area=150/2=75 and 75^2pi=5625pi=17671