Answer:
134
Step-by-step explanation:
2x +x =402
3x=402
x=134
2x=268
In this case x = hamburgers and 2x = cheeseburgers. And sense x = 134 that is your answer.
Which expression is equivalent to -8(k+2) ?
Teresa purchased a prepaid phone card for $15 . Long distance calls cost 24 cents a minute using this card. Teresa used her card only once to make a long distance call. If the remaining credit on her card is $3.96 , how many minutes did her call last?
Answer:
46 minutes
Step-by-step explanation:
Teresa purchased a prepaid phone for $15
Long distance calls cost 24 cents a minute using this card
She used the card just once to make a long distance call
The remaining credit on her card was $3.96
Therefore the minutes in which her call lasted can be calculated as follows
Let x represent the minutes
15 - 24/100x= 3.96
15-0.24x= 3.96
-0.24x= 3.96-15
-0.24x= -11.04
x= 11.04/0.24
x = 46
Hence Teresa call lasted for 46 minutes
Helppp !!! Mathematics
In a cinema theatre, why do we normally not hear echoes even though the sounds are loud?
Answer:
An echo is formed as a result of reflection of the original sound which returns to the listener. You might have experienced Echo in an EMPTY ROOM but no echo is produced after the room is occupied. To avoid echo from being produced the echo has to be absorbed. Echo in a cinema theatre is absorbed by the WALLS of the theatre.
They are not plain. The walls are corrugated or shaped to form tiny holes or empty spaces to ABSORB the ECHO. Modern Theatre's have ABSORBENT materials sticked to the walls of the theatre.
An echo is an unpleasant sound heard after a produced sound got reflected from a plain surface. It is majorly eliminated in a cinema theater by:
the use of sound absorbing materials in the construction of the wallsabsorption of sound waves by the body and cloths of viewers
Echo is a sound produced due to the reflection of a produced sound by a plain surface. Its continuous occurrence leads to reverberation. It causes distortion of produced sound which makes it unpleasant to hearing. Thus the need for a mechanism which would reduce it to a bearable level.
To reduce or eliminate echo, the walls of the cinema theater had been constructed with sound absorbing materials which may include special pads. These would have been incorporated into the walls, and would absorb most unwanted sounds produced in the theater.
Also the cloths worn by viewers absorbs some of the unwanted sound, thus assisting to indirectly reduce echo.
Visit: https://brainly.com/question/25709979
Which expression has the same value as 4÷25?
Answer:
We need the choices, since there are plenty equations with the same value.
Step-by-step explanation:
4/25=0.16
Whichever equation equals 0.16 is your answer.
is the following relation a function?
Х Y
-1 -2
2 3
3 1
6 -2
0 Yes
O No
Answer:
yes
Step-by-step explanation:
each x-value has only one y-value
Is the quotient of
-8÷(-2) is positive or negative?
PLS HELP
What is the slope of a line parallel to the line whose equation is: -2x + y = - 7?
Answer:
2
Step-by-step explanation:
-2x+y=-7
Take the -2x and put it on the other side of the equation by changing the sign
y=-7+2x
Now put it in y intecpet form by putting the 2x first
y=2x-7
Slope is the number before the x.
so 2
Now knowing that parallel lines always have the same slope the answer is 2
Multiply -2 1/4 *( -2 1/3)
Answer:
5 1/4
Step-by-step explanation: hope this helps you out!
which is the distance between 1, -4 and 1, 18
Answer:
22
Step-by-step explanation:
cancel the 1 and add 18+4=22
Question 4 Multiple Choice Worth 1 points)
(04.02 LC)
What is the solution to the following system of equations?
X - 3y = 5
2x + y = 10
(5,0)
(0,5)
(7,0)
(0,7)
Answer:
What do you mean?
Step-by-step explanation:
Answer:
( 5, 0 )Step-by-step explanation:
x - 3y = 5
2x + y = 10 multiply by 3 to eliminate y and solve for x
x - 3y = 5
6x + 3y = 30 then add
7x = 35
simplify:
x = 35 / 7
x = 5
substitute x = 5 back into the eq.2
2x + y = 10
2(5) + y = 10
y = 10 - 10
y = 0
therefore the answer is ( 5, 0 )
Adam's family went out to lunch yesterday and their meal cost $32.85 total.
If they plan to leave a 20% gratuity, how much tip should they leave?
$3.29
O $6.57
O $26:28
$39.42
Answer:
$6.57
Step-by-step explanation:
Answer:
6.57
Step-by-step explanation:
Help! Please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
transitive property of equality
Step-by-step explanation:
if a=b and b=c then a=c
a triangle has the following two angle measures:
based on the angles given the third angle must have a measure of _______?
Answer:
62°
Step-by-step explanation:
Given that the triangle has two angle measures of 41° and 77°.
All the angles in a triangle must add up to 180° (e.g. 20° + 60° + 100°). So we write a simple equation to solve for the mystery angle measure:
Let x = the missing measure
[tex]41 + 77 + x = 180[/tex]
Now that we have our equation, let's start solving it. First, we need to add 41 and 77 together which simplifies the equation: [tex]118 + x = 180[/tex]
Then we subtract 118 from both sides to isolate x - this will give us the value of this variable: [tex]x = 62[/tex]
Therefore, the third angle must have a measure of 62°.
50 Points please help!!
A motorized float in a Thanksgiving Day parade is traveling north at a speed of 16.0 km/h. Part of a "Pilgrim" woman's role in the thematic vignette is to walk across the float to call the men to dinner. She walks at a speed of 3.22 km/h east as the float passes the judge's booth, which is on the west side of the street. What is the woman's velocity with respect to the judge?
Answer:
16.32 N11.38°E km/h
Step-by-step explanation:
16.0∠0° +3.22∠90° ⇒ (x, y) = (3.22, 16.0) ⇒ (r, θ) =
(3.22, 16.0) ⇒ (r, θ) = (√(3.22² +16²), arctan(3.22/16)*) = (16.32, 11.38°)
The woman's velocity is 16.32 km/h in a direction that is 11.38° east of north.
_____
This is her velocity in any stationary frame of reference.
____
* We have used North as the reference for the angle, measured CW.
Which of the following is an equivalent representation of 5^-4 ?
1/81
1/12
1/9
1/625
Answer:
It would be 1/625
Step-by-step explanation:
5^-4=0.0016
0.0016 as a fraction is 1/625
Hope this helps! :)
evaluate -4 1/3 + 5 2/3 show work
What is 3.5* 0.2
Could you help
Answer:
0.7
Step-by-step explanation:
3.5 × 0.2 = 0.7
It is is hard to show work for this through text
Answer:
.7
Step-by-step explanation:
1' 3.5
* .2
_____
. 7 0
Hope this helped :P
sorry if you can’t see BUT PLEASE HELP IM TIMED AND MY TEACHER IS GOIGN TO SUBMIT IT PLS ANSWER ONE BY ONE
Answer:
7.) a. 84 hundredths
8.) 6(.36)= 2.16 meters
9.) 9.40÷4= 2.34 meters
I cant see 10 clearly
11.) No because if you multiply 2×4 you get 8 so .814 wouldn't be reasonable
Idk why but I need an image answer for this...
8.25
x6.75
Answer: 55.6875
Step-by-step explanation:
Answer:
8.25
x6.75
Step-by-step explanation:
55.6875
-30/3+-5 i need help with this for math class.
Answer:
-15
Step-by-step explanation:
-30/3 = Negative thirty divided by three equals Negative Ten.
Negative ten plus negative five equals Negative Fifteen
Answer:
is -15
Step-by-step explanation:
-30/3+-5 =
-10 + (-5) =
-15
The ___ of the seven and a number, 7g? Quotient difference product or sum.
Answer:
product
Step-by-step explanation:
a number right beside a variable = multiplication.
if this helped, please mark brainliest.
Suppose the length and width of the rectangle are doubled. What effect would this have on the perimeter?
Answer: The perimeter is doubled
Step-by-step explanation:
When you double the length and width you have 2l as length and 2w as width. The new perimeter is 2(2l)+2(2w)=2(2l+2w). This means that when you double both sides, the perimeter is doubled.
Need help with 3 and 4
Answer:
Bruh I can hardly see
Step-by-step explanation:
Maybe u should try copy and pasting everything there and putting it on the question page that will make it MUCH more visible
Sry I couldnt answer tho
Have a Good day! UwU
find the area of the shaded region
Answer:
D) 1,020 square units
Step-by-step explanation:
36x48=1728
24x32=768
6x10=60
1728-768+60=1020 square units
Which expressions are equivalent to x+4 : when X=0? Select three options. X 4 3 3 2x2 + 4x WY x2 + 4x
Answer:
a,c,d
Step-by-step explanation:
questions classmates have about cell organelles? from peardec
Solve for a.
ab + c= d.
Answer:
a=d-c/b
Step-by-step explanation:
This is 1.5 Finding the missing Angle Relationship. Can someone help me or correction, (DO) lol Problems 1-10. :) thank you.
State the number of complex roots, the number of positive real roots and the number of negative real roots of
x^4-x^3-6x+ 3 =0
9514 1404 393
Answer:
2 complex roots2 positive real roots0 negative real rootsStep-by-step explanation:
The signs of the terms are + - - +. There are two sign changes, so 0 or 2 positive real roots.
Negating the signs of the odd-degree terms, the signs are + + + +. There are no sign changes, so 0 negative real roots.
For x=0, the value of the quartic is +3. For x=1, the value is -3, so we know there are 2 positive real roots, one of which lies in the interval (0, 1).
The 4th-degree polynomial equation must have 4 roots, so the other two must be complex.
2 complex roots2 positive real roots0 negative real roots_____
The roots are approximately 0.489999841592, 2.06573034434, −0.777865092969 ± 1.53582061225i