Answer: 1.2 hours
Step-by-step explanation:
Given: : Time taken by Julius to complete the job alone: [tex]T_1=2\text{ hours}[/tex]
Time taken by Marcos to complete the job alone : [tex]T_2=3\text{ hours}[/tex]
Let the time taken by both to complete the job together = T
[tex]\dfrac{1}{T}=\dfrac{1}{T_1}+\dfrac{1}{T_2}[/tex]
[tex]\Rightarrow\ \dfrac{1}{T}=\dfrac{1}{2}+\dfrac13\\\\\Rightarrow\ \dfrac{1}{T}=\dfrac{3+2}{2\times3}\\\\\Rightarrow\ \dfrac{1}{T}=\dfrac{5}{6}\\\\\Rightarrow\ T=\dfrac{6}{5}=1.2[/tex]
Hence, it will take 1.2 hours to complete the job by working together.
PLEASE ANSWER IMMEDIATELY, I'LL GIVE BRAINLIEST AND POINTS!!
Answer:
8000
Step-by-step explanation:
8000
10^6-2*7.2/9
72000/9 = 8000
Can someone please explain to me how to work this out?
Answer:
B
Step-by-step explanation:
the way i work it out is if you take the product and power it to the third you can easily find out which answer is correct. another way, if you don't have a calculator is to look at the last digit in the number in the square root sign.
For example, 3 square root 64 equals 8. you would look at the 4 and try to find 3 numbers that end in 4 OR is divisible three times by the number. 64 is exactly divisible by 4 only 3 times so you know that it can't be 8.
hope this helps!
what is 4 times what = 1?
Answer:
.25 4(.25) = 1
Step-by-step explanation:
Answer: 4 x 1 =4 - 3=1
Step-by-step explanation:
F^12 x f^12=f to the power of what
Answer:
[tex]f^{24}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex] , thus
[tex]f^{12}[/tex] × [tex]f^{12}[/tex] = [tex]f^{(12+12)}[/tex] = [tex]f^{24}[/tex]
what is the slope of the line that contains the points in the table ?
Answer: -2
Step-by-step explanation:
what is the answer to this 5 ( y + 8)
Answer:
ijsdbf
dsad
Stepdvds-by-step explanation:
d
Carlos saves 18% of his salary every month Last month he saved $63. How much money did Carlos make last month?
Answer:
$74.34
Step-by-step explanation:
Because $63 + 18% = $74.34
M = 2/3, B = -5
M = -5, b = 3/2
M = 2, b = -6
M = -5, b= 2
Answer: m = 3/2, b = -5
Step-by-step explanation:
When we input these values into slope-intercept form y = mx + b, then we get y = 3/2x -5. When trying out different x values, we get the same points that are on the line such as (2, -2) also the y-intercept is -5, so we know it is a true statement and that the slope 3/2 and y-intercept -5 are the only correct answers for this line.
Jason spent $20.00 on Takis. If each bag of Takis cost
$2.50, how many lunches did he buy?
Answer:
8
Step-by-step explanation:
20.00 divided 2.50 = 8.
Answer:
8
Step-by-step explanation:
$20.00/$2.50 = 8
Please help me find the answer! Please explain how you got it!
Answer:
B. 4.5c + 4 = 24
Step-by-step explanation:
T = cx + py is the equation you are given.
T = 24 because it is the total amount of money you can spend.
x = 4.5 because each phone case costs 4.50 dollars
p = 2 because you bought 2 pop sockets.
y = 2 because each pop socket costs 2 dollars.
There is no c because you don't know the number of phone cases you bought.
Now, we have to substitute the values into the equation:
24 = 4.5x + 2(2)
24 = 4.5x + 4
4.5x + 4 = 24 <--- This is your answer
Hope this helps!
how many solutions does 12x + 1 = 12x - 10
Answer:
No solutions
Step-by-step explanation:
First things first we need to get rid of the variables so we subtract -12x from one side to the other.
Now we have 1= -10
In this case, 1 is not equal to -10 so we get no solutions!
(Side note: if they were the same like 3=3 that would be all solutions.)
Two bikers rode at a constant speed on a 150-meter track. The data here show each biker’s distance for a certain part of the race. Who won the race and by how much?
Student 1
A 2-column table with 4 rows. Column 1 is labeled Time (seconds) with entries 4, 6, 8, 10. Column 2 is labeled Distance (meters) with entries 40, 60, 80, 100.
won the race by about
.
Student 2
A graph has time (seconds) on the x-axis and Distance (meters) on the y-axis. Points are at (4, 42), (6, 63), (8, 84) and (10, 105).
Answer:student 2
1 second
Step-by-step explanation:
i took the test
Answer:
student 2 ..... 1 second
Step-by-step explanation:
i did the assignment on edg2020
Name the line of reflection used to map each pre-image to its image.
Please help
Answer:
Step-by-step explanation:
From the picture attached,
9). When pre-image KLMN is a reflected across x = -2, we get image K'L'M'N'.
Therefore, line of reflection will be x = -2
10). In this picture line of reflection which passes through origin (0, 0) and slope = 1 will be,
y = x.
11). Since, all the points of image and preimage points are equidistant from x-axis, line of reflection will be x-axis or y = 0.
12). Line passing through midpoint of the line joining BB' will be the line of reflection.
Coordinates of B → (5, 3)
Coordinates of B' → (5, 7)
Coordinates of BB' → [tex](\frac{5+5}{2},\frac{3+7}{2})[/tex] → (5, 5)
Therefore, line of reflection will be y = 5.
13). Coordinates of G → (2, 5)
Coordinates of G' → (-2, 5)
Midpoint joining the segment GG' → [tex](\frac{2-2}{2},\frac{5+5}{2})[/tex] → (0, 5)
Therefore, line of reflection → x = 0
14). Line of reflection passing through (0, 0) and slope = -1
y = -x
Show that the points P(3,4) z Q(7,8) , R(11,4) are the vertices of an isosceles triangle.
Answer:
i mean its all about drawing the graph.
Step-by-step explanation:
I hope this helps!
an airplane descends from 15,000 feet at a rate of 200 feet per second.
A. 15,000t + 200
B. 15,000 + 200t
Answer:
The answer should B, only one makes sense
URGENT
What is the distance between the two points (-5, 6) and (8,-4)?
Given parameters:
Coordinates of the two points = (-5, 6) and (8,-4)
Unknown:
Distance between the two points.
To find the distance between two points, use the expression below;
Distance ² = (x₂ - x₁)² + (y₂ - y₁)²
where;
(-5, 6) and (8,-4)
x₂ = 8 , x₁ = -5 , y₂ = -4 and y₁ = 6
Input the parameters and solve;
Distance² = (8-(-5))² + (-4 - (6))²
= 169 + 100
= 269
Distance = [tex]\sqrt269}[/tex] = 16.4
The distance between the two points is 16.4
Find the quotient: 8 ÷ 0.5
You can find the quotient by asking how many
are in 8.
Think of the problem as
items, each divided into 2 equal pieces.
The quotient is
.
Answer:
The answer is...........1:Halves 2:8 3:16
What is the solution to |x + 2| 3 or x -1 or x < -3
Answer:
x<-3
Step-by-step explanation:
Why all integers are not whole numbers?
Answer:
Integers -4, -3, -2, -1, 0, 1, 2, 3, 4… all the whole numbers and their opposites (the positive whole numbers, the negative whole numbers, and zero). Fractions and decimals are not integers. For example, -5 is an integer but not a whole number or a natural number.
3) The height of an object that is thrown straight up from a height of 6 feet
above ground is given by h(t) = -15t2 + 25t + 6, where t is the time in
seconds after the object is thrown. Find the average rate of the object from
1 to 4 seconds.
Answer:
- 44 feets
Step-by-step explanation:
Given the model:
h(t) = -15t2 + 25t + 6
Average height of object from 1 - 4 seconds
At :
t = 1
h(1) = -15(1)^2 + 25(1) + 6 = 16 feets
t = 2
h(2) = -15(2)^2 + 25(2) + 6 = - 4 feets
t = 3
h(3) = -15(3)^2 + 25(3) + 6 = - 54 feets
t = 4
h(4) = -15(4)^2 + 25(4) + 6 = -134 feets
Average height:
(16 + (-4) + (-54) + (-134)) / 4 feets = (- 176 / 4) feets
= - 44 feets
Simplify (1/7) to the 2 power
Answer:
ill pass
Step-by-step explanation:
The statement as (1/7) to the 2 power is equivalent to 1/49.
What is Expression?
An expression in math is a sentence with a minimum of two numbers/variables and at least one math operation in it. Examples -
2x + 3y
3x + 5y + z
Given is a statement as (1/7) to the 2 power.
We have the given statement -
"(1/7) to the 2 power".
We can write it as -
[X] = (1/7)²
[X] = 1/7 x 1/7
[X] = 1/49
Therefore, the statement as (1/7) to the 2 power is equivalent to 1/49
To solve more questions on expressions, visit the link below-
brainly.com/question/4274234
#SPJ2
Ahmed is riding the elevator in a building. The building has floors above and below ground level. Ahmed uses the expression below to describe his movement.
6 + (negative 8)
Answer:
Ahmed moved 6 floors up, then moved 8 floors down. Because of that he is now 2 floors below ground level.
Step-by-step explanation:
Hey there!
8 - 6 = 2
~I hope I helped you! :)~
Netflix used to charge $5 per DVD rental and a $10 membership fee. Plex used to charge $2 per DVD and a $60 membership fee. Which inequality best represents when the charges from Netflix are less than Plex?
Answer:
the charges from Netflix are less than Plex cause there's a 50 dollar gap for the member ship and for the DVD there's only a 3 dollar gap
Step-by-step explanation:
Hurry I only have 5 minutes!!!!!!!!!!! Please help me I don't understand!!!!
The average of the first five numbers drawn was 2499. The first four numbers were 4165,320,7142, and 64. What was the fifth number?
Answer:
804
Step-by-step explanation:
Answer:
804?
Step-by-step explanation:
maybeeeeeeeeee?
write the equation of the line perpendicular to y= 5/2x+3 that passes through the point (-7,9). Type an answer using slope-intercept form or using the given points in point-slope form
Answer:
5y = -2x + 31
Step-by-step explanation:
Given equation:
y = [tex]\frac{5}{2} x + 3[/tex]
Coordinate = (-7,9)
Unknown:
Equation of the line perpendicular = ?
Solution:
The slope - intercept format of a line is given as;
y = mx + c
where y and x are the coordinates
m is the slope
c is the y-intercept
y = [tex]\frac{5}{2} x + 3[/tex]
From the given equation; slope is [tex]\frac{5}{2}[/tex]
A line perpendicular will have a slope that is negative and the inverse of this;
slope of perpendicular line = [tex]-\frac{2}{5}[/tex]
Since y= 9 and x = -7;
So;
9 = [tex]\frac{-2}{5} x (-7)[/tex] + C
9 = [tex]\frac{14}{5}[/tex] + C
C = 9 - [tex]\frac{14}{5}[/tex] = [tex]\frac{31}{5}[/tex]
Now,
y = [tex]-\frac{2}{5}[/tex]x + [tex]\frac{31}{5}[/tex]
mulitply through by 5;
5y = -2x + 31
9(6j + 1) + j Help ASAP
Answer: 55j+9
Step-by-step explanation: distribute 9 through the parentheses and you would get 54j+9+j collect the terms 55j+9 AND YOUR ANSWER IS 55J+9
Please help! I will give Brainliest! I don't want to fail! (Two questions)
Answer:
The tip is $7,00 and the equation is C = 13.77p
Step-by-step explanation:
46.95 x 1.15=53.9925
= ans-46.95 = 7.04
or
46.95/100
= ans x 15 = 7.04
HELP ME!!! BRAINLIEST!!!
Answer:
-3
Step-by-step explanation:
Just simply add 6 to -9 and you would get -3, not sure what else you would need. Just let me know if there is anything else.
Lisa wants to arrange the numbers below in order from LEAST to GREATEST. 1/5, -0.3, 0.01,-1/-4 Which of these represents her list?
Answer:-.3 , .01 , 1/5 , -1/-4
Step-by-step explanation:
7(7 + 5r) = 7(2 + 6r) please show work
Answer:
r=5
Step-by-step explanation:
1. Use the division property
49+35r=14+42r
2. Combine like terms
35=7r
3. Divide
r=5
Answer:
r = 0
Step-by-step explanation:
7 ( 7 + 5r ) = 7 ( 7 + 6r )
First use the ditributive property of multiplication -
49 + 35r = 49 + 42r
Subtract 35r from both sides -
49 = 49 + 7r
Subtract 49 from both sides -
0 = 7r
r = 0
Hope this helped! :)