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kolbaska11 [484]
2 years ago
12

Dorrian graphed the distance, y, traveled by 2 bikes in x seconds. If the two bikes are racing a distance of 100 feet, which bik

e will win the race?
Mathematics
2 answers:
torisob [31]2 years ago
6 0

Answer:

The bike whose position has greater y-coordinate.

Step-by-step explanation:

If Dorrian plotted the co-ordinates of the bikes with second on the x-axis and distance traveled on the y-axis, the x-coordinates of the two bikes will be the same.

But, the bike which went faster will have the greater y-coordinate and which followed the earlier will have the smaller y-coordinate.

Hence, the bike which has greater y-coordinate will win the race.

pishuonlain [190]2 years ago
4 0

Answer:

D. Bike 1 will win because the slope of the line for Bike 1 is Three-halves, which is greater than the slope of the line for Bike 2.

Step-by-step explanation:

You might be interested in
You measure containers for international shipments. The height of the standard container is 6 feet and 7 inches. What is its hei
quester [9]

Answer:

2.042 meters hope this helps

4 0
2 years ago
Y = A system of equations. Y equals StartFraction one-half EndFraction x minus 6. X equals negative 4.X – 6 x = –4 What is the s
MrRa [10]

Answer:

x = -4, y =-8 is the solution to the system of equations.

Step-by-step explanation:

Given the system of equations as:

y= \dfrac{1}{2}x-6

and

x =-4

To find:

The solution to the system of equations = ?

Solution:

Here, we are given two equations and two variables i.e. x and y.

So, we can solve the system of equations for the values of x and y.

Let us first consider the 2nd equation.

x =-4 we already have the value of x.

Now, let us put the value of x in the 1st equation to find the value of y.

y= \dfrac{1}{2}x-6

\Rightarrow y= \dfrac{1}{2}\times (-4)-6\\\Rightarrow y= -\dfrac{1}{2}\times 4-6\\\Rightarrow y= -2-6\\\Rightarrow \bold{y =-8}

So,  the solution to the system of equations is:

x = -4, y =-8

3 0
2 years ago
A train is traveling at a constant speed and has traveled 67.5 miles in the last 1 1/2 hours. Which equation shows the proportio
marishachu [46]

Answer:

The answer is B, d=45t

Step-by-step explanation:

i just did it and got it correct

hope it helps and good luck :)

8 0
2 years ago
A welder produces 7 welded assemblies during the first day on a new job, and the seventh assembly takes 45 minutes (unit time).
likoan [24]

Answer:

(a). 72.9%.

(b). 13.6 hr.

Step-by-step explanation:

So, we are given the following data or parameters or information which is going to assist us in solving this question/problem;

=> "A welder produces 7 welded assemblies during the first day on a new job, and the seventh assembly takes 45 minutes (unit time). "

=> The worker produces 10 welded assemblies on the second day, and the 10th assembly on the second day takes 30 minutes"

So, we will be making use of the Crawford learning curve model.

T(7) + 10 = T (17) = 30 min.

T(7) = T1(7)^b = 45.

T(17 ) = T1(17)^b = 30.

(T1) = 45/7^b = 30/17^b.

45/30 = 7^b/17^b = (7/17)^b.

1.5 = (0.41177)^b.

ln 1.5 = b ln 0.41177.

0.40547 = -0.8873 b.

b = - 0.45696.

=> 2^ -0.45696 = 0.7285.

= 72.9%.

(b). T1= 45/7^ - 045696 = 109.5 hr.

V(TT)(17) = 109.5 {(17.51^ - 0.45696 – 0.51^ - 0.45696) / (1 - 0.45696)} .

V(TT) (17) = 109.5 {(4.7317 - 0.6863) / 0.54304} .

= 815.7 min .

= 13.595 hr.

8 0
2 years ago
The manager of a grocery store estimates that 74% of customers will make a purchase.
Lina20 [59]

Answer:

A - Per 100 people, cashier should expect 26 customer until he finds a costumer that makes a purchase.

B -  The probability is 1/4

Step-by-step explanation:

The estimated chance of a customer making a purchase  = 74%

So, if a TOTAL of 100 people visit the grocery store on any random day,

then 74 % of customers  

= 74% of 100

= 74 people will make purchases.

⇒ Out of total 100 people visiting, 74 people  will make a purchase.

So, the number of people NOT making a purchase = 100 - 74 = 26

⇒ Out of total 100 people visiting, 26 people  will NOT make a purchase.

Also, 26 = 26% of 100

<u>Part A :</u>

So, in order to make a purchase, cashier should expect 26% of customers because the percentage of NOT purchasing is 26%.

Hence, per 100 people, cashier should expect 26 customer until he finds a costumer that makes a purchase.

<u>Part B :</u>

The percentage of customer making a purchase = 74%

The percentage of people NOT making a purchase  = 26%

So, for every 3 customer making a purchase there is a 1 person NOT making  a purchase.

So, the probability is 1/4

6 0
2 years ago
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