Answer: 5 min
Step-by-step explanation:
Given
Length of the race track [tex]l=1\ km\ or\ 1000\ m[/tex]
Suppose the speed of Yohanne is [tex]v_y=x\ m/min.[/tex]
then Mikaela speed is [tex]v_m=50+x[/tex]
the difference in the finishing time is 1 minute i.e.
[tex]\Rightarrow \dfrac{1000}{x}-\dfrac{1000}{50+x}=1\\\\\Rightarrow \dfrac{50+x-x}{x(50+x)}=\dfrac{1}{1000}\\\\\Rightarrow \dfrac{50}{x(50+x)}=\dfrac{1}{1000}\\\\\Rightarrow x^2+50x-50,000=0\\\\\Rightarrow x^2+250x-200x-50,000=0\\\\\Rightarrow (x+250)(x-200)=0\\\\\Rightarrow x=200\ m/min.[/tex]
Time taken by Yohanne is
[tex]\Rightarrow t=\frac{1000}{200}=5\ min[/tex]
Is this correct and if not what am I missing?
Answer:
Yes you are correct
The peak is at 5
Step-by-step explanation:
PLS NEED HELP DON'T UNDERSTAND ONE PART
Answer:
Step-by-step explanation:
Work = (12 - 2) x 180 = 10 x 180 = 1800 degrees
Answer = 1800 degrees
Hope that helps!
Answer: .
Step-by-step explanation: okay so the formula to complete this is (n-2) x 180. Which basically is the number of sides, minus 2, and times that answer by 180. So (12-2)x 180.
NEEED HELP PLEASEEEEE
Write a rate that represents the situation:
One possible rate is ( ) week(s) for ( ) every day(s).
Answer:
10/10
Step-by-step explanation:
Ez..........................................................
20=c/5
can you show your work thanks
Someone help me I need this one fast
c = 20 × 5
c = 100
and that's all
Answer:
Step-by-step explanation:
what is the answer??? Please help me!
16% of 40 =
Answer:
16/100*40
32/2
lol so simple
gg
What is the most common number of sit-ups completed in 1 minute? Explain how you used the dot plot to identify this number.
Write your answer in the space below.
Answer:
38.
Step-by-step explanation:
38 is the highest column in the plot.
Answer:
Heya
Step-by-step explanation:
the most common number of sit-ups completed in 1 minute is 38
hope it will be helpful :)
The table shows the results of an experiment in which Max drew tiles from a bag. If Max conducts this experiment again and performs 200 trials, which is the best prediction of how many times he will draw a blue tile?
Frequency
Red 9
Blue 46
Green 25
TOTAL TRIALS 80
Explanation is in the file
tinyurl.com/wpazsebu
Choose the graph of the system of equations.
P=10d
P=8d+40
Answer:
Step-by-step explanation:
10d = 8d + 40
2d = 40
d = 20
10(20) = P
200
(20, 200)
Option 1 is the first choice
Jayden buys stickers for $2 each and marks up the price by 55%. How much profit does Jayden make from each sticker sold?
Answer:
$1.1 profit
Step-by-step explanation:
100% plus 55% profit = 1.55
2 x 1.55 =3.1
3.1-2=1.1
Given right triangle ABC with altitude BD drawn to hypotenuse AC. If BC=6 and DC=4, what is the length of AC ?
Step-by-step explanation:
BC^2 + DC^2 = AC^2
6^2 + 4^2 =AC^2
36 + 16 = AC^2
52=AC^2
√52=AC
AC=7.2111
Please help me with this
Answer:the answer would also be 20 degrees
Step-by-step explanation:
because its exaclty across from the angle!!!!!
Answer:
20 degrees
Step-by-step explanation
they are opposite angles
The lines represented by the equations y = –2 – 9 and y – = 2 are
Answer:
i dont know if its a typo but here
Step-by-step explanation:
JLK ~ PQR Find the value of x.
Answer:
12
Step-by-step explanation:
if their similar then find the proportion with a cross multiplication equation
x/36 = 13/39
x*39 = 36*13
39x = 468
x = 468/39
x = 12
Answer:
x = 12
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{JL}{PQ}[/tex] = [tex]\frac{JK}{PR}[/tex] , substitute values
[tex]\frac{x}{36}[/tex] = [tex]\frac{15}{45}[/tex] = [tex]\frac{1}{3}[/tex] ( cross- multiply )
3x = 36 ( divide both sides by 3 )
x = 12
Help!! I have 55 seconds to do this
Answer:
the answer is A
Step-by-step explanation:
78 is acute angle because it is less than 90 degrees. A is an acute angle so thats the answer
Use the double bar graph below to answer the following question.
What was the population of San Diego in 2000?
1,000,000
1,200,000
1,100,000
2,000,000
Answer:
the population would be 1,200,000 of San Diego in 2000
Answer:
1,200,000 is your answer
Step-by-step explanation:
What is the equation of a line with a slope of 2 and a y intercept of -5?
Answer:
y=2x-5
Step-by-step explanation:
The slope is how you move so you could also call it m
The y intercept is where you begin so you could call it b
So every time you need to find the equation or which one is like the slope just remember m=move b= begin
y=mx+b
WILL GIVE BRAINLIEST
Quadrilateral BCDE is similar to quadrilateral FGHI. Find the measure of side FG. Round your answer to the nearest tenth.
Answer:
The answer is below
Step-by-step explanation:
Two polygons are said to be similar to each other if they have the same shape as well as the ratio of their corresponding sides being equal to each other.
Since quadrilateral BCDE is similar to quadrilateral FGHI, hence the ratio of their corresponding sides is equal. Hence:
[tex]\frac{FG}{BC}= \frac{HI}{DE} \\\\substituting:\\\\\frac{FG}{8.3} =\frac{50}{11} \\\\FG=\frac{50*8.3}{11}\\\\FG=37.7\ to \ the\ nearest\ tenth[/tex]
PLSSS HURRY!!!
Here are the answer choices
A. counterclockwise rotation
B.Clockwise rotation
C.90 rotation
D. 45 rotation
E. 180 rotation
Answer:
B. Clockwise RotationStep-by-step explanation:
i hope it helps ;)
Please help me with those questions please
Answer:
7.5
35.2
1.5
20
Step-by-step explanation:
1. vertical angles are equal
(2x+17)=(4x+2)
15= 2x
x= 7.5
2. adjacent angles equal 180
(2m+8)+(3m-4)= 180
5m+4= 180
5m= 176
m= 35.2
3. (30s+5)=(20s+20)
10s= 15
s=1.5
4. 4p+5p=180
9p=180
p=20
sorry that took so long. I was babysitting lol
100 points! Look at the picture attached. I will mark brainliest! Random answers will be reported.
Answer:
this is your answer look it once
Answer:
5: x > 6
6: x < 62
Step-by-step explanation:
[tex](1)x + 14 < 2(3x - 8) \\ x + 14 < 6x - 16 \\ x - 6x < - 16 - 14 \\ -5x < - 30 \\ x > \frac{ - 30}{ - 5} \\ x > 6 \\ [/tex]
[tex](2)2(x + 22) > 3x - 18 \\ 2x + 44 > 3x - 18 \\ collect \: like \: term \\ 2x - 3x > - 18 - 44 \\ - x > - 62 \\ x < 62[/tex]
Can someone plz help me with this the answer choices are at the bottom plz I beg u
Answer:
Step-by-step explanation:
WILL GIVE BRAINLIEST
Answer:
They only intersect once. (Correct letter is B)
Step-by-step explanation:
Slope Intercept Form:
2x - 4y = 3
-2x -2x
________
-4y = -2x + 3
Switch the signs of all of the numerals since you cannot have a negative 'y' value.
4y = 2x - 3
---- ---------
4 4
y= 1/2x - 3/4
-----------------------------------------------------------------------------------------------------------------
7y - 5x = 8
+5x +5x
----------------
7y = 5x + 8
---- ---------
7 7
y= 5/7x + 1 1/7
-----------------------------------------------------------------------------------------------------------------
After graphing the lines, you then can see that the lines only ever intersect once.
Guys im a not the smartest fifth grader and i need help pls help me my question is 5/6 divided by 1/3
Answer:
When dividing fractions, you keep the first fraction the same, change the problem into a multiplication problem, and flip the second fraction.
5/6 x 3/1 = 15/6 = 2 3/6
Step-by-step explanation:
5.solve for x 6. solve for x
Answer:
x=10 , x=13
Steps:
5.
4x+5x=180-90
9x=90
x=90/9
x=10
6.
(3x+7)+(2x+3)=180-105
5x+10=75
5x=65
x=65/5
x=13
Step-by-step explanation:
☯ [tex] \underline{ \underline{ \large{ \tt{S \: O \: L \: U \: T\: I \: O \: N}}}} : [/tex]
✰ [tex] \underline{ \underline{ \large{ \text{For \: Question \: Number \: 5}}}} : [/tex]
[tex] \large{ \tt{90 \degree + 4x \degree + 5x \degree = 180 \degree}}[/tex] [ Sum of angle in a triangle ]
⤑ [tex] \large{ \tt{90 \degree + 9x \degree = 180 \degree}}[/tex]
⤑ [tex] \large{ \tt{9x \degree = 180 \degree - 90 \degree}}[/tex]
⤑ [tex] \large{ \tt{9x \degree = 90 \degree}}[/tex]
⤑ [tex] \large{ \tt{ \frac{9x}{9} = \frac{90}{9} \degree}}[/tex]
⤑ [tex] \boxed{ \large{ \tt{x = 10 \degree}}}[/tex]
----------------------------------------------------------
✰ [tex] \underline{ \underline{ \text{For \: Question \: Number \: 6}}} : [/tex]
[tex] \large{ \tt{75 \degree = 3x \degree + 7 \degree + 2x \degree + 3 \degree}}[/tex] [ Exterior angle is equal to the sum of two non-adjacent interior angles ]
⟶ [tex] \large{ \tt{75 \degree = 5x \degree + 10 \degree}}[/tex]
⟶ [tex] \large{ \tt{5x \degree \: + 10 \degree = 75 \degree}}[/tex]
⟶ [tex] \large{ \tt{5x \degree = 75 \degree - 10 \degree}}[/tex]
⟶ [tex] \large{ \tt{5x \degree = 65 \degree}}[/tex]
⟶ [tex] \large{ \tt{ \frac{5x}{5} = \frac{65}{5} \degree}}[/tex]
⟶ [tex] \boxed{\large{ \tt{x = 13 \degree}}}[/tex]
Hope I helped ! ✧
Have a wonderful day / night ! ♪
Let me know if you have any questions regarding my answer!
[tex] \underline{ \underline{ \mathfrak{Carry \: On \: Learning}}}[/tex] !! ♕
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Pythagorean Theorem Word Problems Mazel
Which equation represents a proportional relationship that has a constant of proportion nationality equal to 4 - 5
Question:
Which equation represents a proportional relationship that has a constant of proportionality equal to 4/5
Answer:
[tex]y = \frac{4}{5}x[/tex]
Step-by-step explanation:
Required
Equation with 4/5 as its constant of proportion
Two proportional quantities x and y have the following relationship:
[tex]y = kx[/tex]
Where k is the constant of proportion.
In this case:
[tex]k = \frac{4}{5}[/tex]
So.
[tex]y = kx[/tex] becomes
[tex]y = \frac{4}{5}x[/tex]
Find the perimeter of the given figure, help please!
Answer:
22.5 cm
Step-by-step explanation:
P=2(6.75)+2(4.5)
P=13.5+9
what is 1 1/4 divided by 1 2/5 for kahn academy ?
Answer:
25/28
Step-by-step explanation:
5/4 x 5/7 = 25/28
Answer:
25/28
Step-by-step explanation:
Im new to this tysm though if you help!:)
Answer:
60
Step-by-step explanation:
-12 * -5 = 60
Answer:
60
Step-by-step explanation:
Hey!
When you multiply a negative by a negative you get a positive, because the two negative signs are cancelled out.
So -12(-5) is equivalent to 12(5) which is 60.
Hope I helped, Feel free to ask any questions if you need me to clarify!
Have a nice day!
-Aadi x