Answer:
Speed of sidekick : 600
Speed of superhero : 500
Step-by-step explanation:
x = sidekick speed
speed of hero = x-100
Time of hero = -36
1800/(x-100) = (1800/x) + 0.6
That equations solves to x = 600 and x = 500 or -500
The given difference in speed and the arrival time, as well as the
distance traveled, gives the speeds as 500 and 600 km/hr.
Response:
The speed of the superhero is 500 km/hr.The speed of the sidekick is 600 km/hr.Which method is used to calculate the speed of the superhero, and the sidekick?The given parameters are;
Superhero's speed = 1800 km
Speed of the superhero = Speed of the sidekick - 100 km/h
The time the superhero arrives at the hideout = 36 minutes after the sidekick = 0.6 hours
Required:
The speed of the superhero and the sidekick
Solution:
Let v represent the speed of the superhero, we have;
v × (t + 0.6) = (v + 100) × t
v·t + 0.6·v = v·t + 100·t = 1800
0.6·v = 100·t
[tex]t = \dfrac{0.6}{100} \cdot v[/tex]
Therefore;
0.006·v² + 0.6·v - 1800 = 0
Which gives;
v² + 100·v - 300,000 = 0
(v - 500)·(v + 600) = 0
v = 500, or v = -600
The speed of the superhero is 500 km/hThe speed of the sidekick is 500 km/h + 100 km/h = 600 km/hLearn more about speed and velocity here:
https://brainly.com/question/14378093
Solve using the quadratic formula. x^2−10x+23=0
Answer:
x = 5 ± √ 2
Step-by-step explanation:
A principal wants to find out if her school needs more bike racks. A survey is taken of 30 students who ride the bus. Why might the sample be biased? Describe in words how a sample could have been done that is more representative of the entire school.
Answer:
The students who ride the bus most likely won't use the bike racks so it doesn't impact them and they probably don't know if they need more bike racks.
Step-by-step explanation:
Pls help me and thank youuu
Answer:
x = 1
Step-by-step explanation:
14 -4x = 10
-4x = -4
x = 1
Answer:
x=1
Step-by-step explanation:
2×7=14
2×2=4
4×1=4
14-4=10
Evaluate.
2(4 what is the correct answer?
Answer:
16
Step-by-step explanation:
2^4= 2 x 2 x 2 x 2 =16
Problem Find the midpoint between the following points using the Midpoint Formula 11113 91492). 2 Solution 1. Given: (-10, 2) and (3,5), the midpoint is ( Berg 2. Given: (3,6) and (7,6) the midpoint is ( BRARIES ) B. RE
Answer:
Step-by-step explanation:
1) (-10,2) ; (3,5)
[tex]Midpoint= (\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2})\\\\=(\frac{-10 +3 }{2}, \frac{2+5}{2})\\\\=(\frac{-7}{2},\frac{7}{2})\\\\=(-3.5, 3.5)[/tex]
2) (3,6) ; (7,6)
[tex]Midpoint= (\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2})\\\\=(\frac{3+7 }{2}, \frac{6+6}{2})\\\\=(\frac{10}{2},\frac{12}{2})\\\\=(5, 6)[/tex]
Pls help me ASAP and explain and show your working of this question
-5 = 53
-1 = 13
0 = 3
1= -7
Step-by-step explanation:
Not sure if this is right, but all I did was plugged -10 X + 3 into the Y = on my calculator and then graphed and checked the table, I looked at the x value and then the Y.
Step-by-step explanation:
given equation :- y = -10x + 3
1)when x = -5
y = -10x + 3
y = -10 (-5) + 3
= 50 + 3
= 53
2)when x = -1
y = -10x + 3
y = -10(-1) + 3
= 10 + 3
= 13
3) when x = 0
y = -10x + 3
y = -10(0) +3
= 0+ 3
= 3
4) when x = 1
y = -10x + 3
y = -10(1) +3
= -10 + 3
= -7
Paul is growing a rectangular rose garden. His area is 5x2+ 8x +3. What are the dimensions of his rectangle?
Answer:
[tex]Length = 5x + 3[/tex]
[tex]Width = x +1[/tex]
Step-by-step explanation:
Given
[tex]Area = 5x^2 + 8x + 3[/tex]
Required
Determine the dimensions
To do this, we simply factorize the given expression.
[tex]Area = 5x^2 + 8x + 3[/tex]
Expand
[tex]Area = 5x^2 + 5x +3x+ 3[/tex]
Factorize
[tex]Area = 5x(x + 1) +3(x+ 1)[/tex]
Factor out x + 1
[tex]Area = (5x +3) (x+ 1)[/tex]
Area is calculated as:
[tex]Area = Length * Width[/tex]
So:
[tex]Length = 5x + 3[/tex]
[tex]Width = x +1[/tex]
Select the zeros of the function
Answer:
Zeroes are where y=0 (x-intercepts)
I think they are expressed as just the x values since the y value can only be zero, but I could be wrong
the zeroes are at x=-6 and x=-2
so (-6, 0) and (-2, 0)
The set of data below represent the number of runs scored by a youth baseball team over the course of a season.
Team: 4, 8, 5, 12, 3, 9, 5, 2 Which set of statements about the data is true?
1)Mean < Standard Deviation
2)First Quartile < Standard Deviation
3)Median > Mean
4)Mean > Standard Deviation
The correct answer will be option (3) Median > Mean
ConceptFirst we will find the mean, median and standard deviation of given dataAfter finding mean, median and standard deviation we will compare them to find the correct answerHow to solve this problem?The steps are as follow:
The runs scored by youth baseball team over the course of a season is : 4, 8, 5, 12, 3, 9, 5, 2Mean is given as follow:[tex]x \: = \frac{4 + 8 + 5 + 12 + 3 + 9 + 5 + 2}{8} \\ x = 6[/tex]
So the mean will be 6Arranging the given observation 2,3,4,5,5,8,9,12To find the median the total number observation is 8 which is even so formula to find median will be:[tex][tex]m = \frac{ { (\frac{n}{2}) }^{th} obs + ( { \frac{n}{2} + 1)}^{th} obs }{2} \\ m= \frac{ { (\frac{8}{2}) }^{th} obs + ( { \frac{8}{2} + 1)}^{th} obs }{2} \\ m= \frac{ { (4) }^{th} obs + ( { 5)}^{th} obs }{2} \\ m= \frac{ { 5} + 5}{2} \\ m = 5[/tex][/tex]
So the correct answer will be option (3) Median > Mean
Learn more about mean and median here:
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#SPJ2
only answer if u know the answer
Answer:
Angle C = 142 degrees
Step-by-step explanation:
A+B = 90
B+C = 180
Rearrange first equation to get B = 90-A
Plug this into the second equation:
90-A + C = 180
C = A + 90
Plug in A, C = 52 + 90 = 142
Which is NOT true about the transformation below?
A. The orientation of the figure stayed the same.
B. The transformation is a reflection.
C. The two figures are congruent.
D. The pre-image is in Quadrant I.
Answer:
D IS THE ANSWER
Step-by-step explanation:
I THINK ITS B
Answer:
B
Step-by-step explanation:
Which lists all the multiples of 8 that are less than 50? 2, 4, 8 4, 8, 12, 16, 24, 32, 40, 48 8, 16, 24, 32, 40, 48 8, 16, 24, 32, 40, 48, 56
Answer:
8, 16, 24, 32, 40, and 48
Step-by-step explanation:
I hope this helps! Please mark Brainliest if possible!
4.
Your math test has 38 questions and is worth 200 points. The test consists
of multiple-choice questions worth 4 points each and open-ended questions
worth 20 points each. How many of each type of question are there?
... please solve this using if systems of equations
Answer:
Number of multiple-choice questions = x = 35 questions
Number of open-ended questions = y = 3 questions
Step-by-step explanation:
Let
Number of multiple-choice questions = x
Number of open-ended questions = y
x + y = 38 (1)
4x + 20y = 200 (2)
From (1)
x = 38 - y
Substitute x = 38 - y into (2)
4x + 20y = 200
4(38 - y) + 20y = 200
152 - 4y + 20y = 200
- 4y + 20y = 200 - 152
16y = 48
y = 48/16
y = 3
Substitute y = 3 into (1)
x + y = 38
x + 3 = 38
x = 38 - 3
x = 35
Number of multiple-choice questions = x = 35 questions
Number of open-ended questions = y = 3 questions
Ecuación:
15 + 3x = 21 - x
Y una explicación por favor. Gracias.
(No respondan con un enlace a otra pagina, solo en un texto o una imagen dentro de la página)
Model the problem with algebra tiles. Then use the model to write an algebraic expression that represents the situation. Isaac gave away five balloons. How can you model this situation? The situation can be modeled by algebra tiles with one orange x tile and . The situation can be represented as an algebraic expression as .
Answer:
Following are the responses to this question:
Step-by-step explanation:
In point 1 the answer is "An algebra tiles will model the situation".
In point 2 the answer is "The one tile of orange x and 5 tiles of black".
In point 3 the answer is "This situation can be interpreted as an x-5 algebraic term".
find the 13th term of the geometric sequence 5,10,20,...
Answer:
5x13=?
Step-by-step explanation:
Answer:
20480
Step-by-step explanation:
Eric has a bag of carrots that weighs 3 pounds. He separates the carrots equally into 10 containers. How many pounds are in each container?
Answer:
3/10 pounds
Step-by-step explanation:
Distribute 3 pounds equally into 10 containers so it is 3/10 pounds in each container.
Mrs. Hazen bought 4 1/2 pounds of bananas to make a banana cream pie. There are 16 ounces in a pound. How many ounces of bananas did Mrs. Hazen purchase?
Answer:
72 ounces of bananas
Answer:
72
Step-by-step explanation:
4.5 ties 16 = 72
helppp pleaseee :)))
Answer:
1)
Y-intercept: -3
Slope: 2
Equation: y = 2x - 3
Step-by-step explanation:
I just answered one since it was only for 5 points. :)
I need here too please
Answer:
The answer is false.
Step-by-step explanation:
PLLLZZ HHEELLPPP! QUESTION IS BELOW!
Answer:
32°Step-by-step explanation:
The two given angles are complementary, it means they add to 90°Find x:
2x + 10 + x + 8 = 903x + 18 = 903x = 72x = 24Find Y:
m∠Y = x + 8 = 24 + 8 = 32°Lincoln High School earned $5,100 in ticket sales for a play. The cost per ticket was 12$. Let t represent the number of tickets sold to the play. Which of the following equations could be used to determine how many tickets were sold to the play
Answer:5100 divided by 12=425
Step-by-step explanation:
Ed has $5.06.
He finds $1.03.
About how much $ does he have now?
Answer:
Ed now has $6.09
Find the area simplify your answer x+6 x+4
Answer:
7x+4
Step-by-step explanation:
combine like terms
x + 6x + 4
(x + 6x) + 4
7x + 4=
7x + 4
find the slope and y intercept for this problem: -2y= -16x+8
Answer:
Step-by-step explanation:
The slope intercept form of a line is y=mx+b where m=slope and b=y intercept so we can solve for y from what you were given.
-2y=-16x+8
y=8x-4
So the slope is 8 and the y intercept is -4.
ill give brainliest if it's right
Find the common difference of the arithmetic sequence -11, -16, -21,...−11,−16,−21,...
Answer:
-5 is the common difference.
Step-by-step explanation:
Answer:
...... ignor this
Step-by-step explanation:
.. sjodnaknd sorry
Select the best term from the box to complete the sentence.
A three-dimentional figure having length, width, and height is called a ___?___
You do not list what the choices are but it can be one of these:
A solid figure
A space figure
There were 35 foxes with socks sitting on some boxes. How many socks
were there altogether. (Remember a fox has 4 feet)
Answer:
140 socks or 70 pair of socks
Step-by-step explanation:
35 x 4 = 140
Answer:
140
Step-by-step explanation:
35 times 4 is 140
Write the word sentence as and inequality. A number b less than 12.
Answer:B < 12.
Step-by-step explanation:
could somebody help me this ixl math is driving me crazy smh
Answer:
279
Step-by-step explanation: