Ask question

Ask question

All categories

Bad White [126]

2 years ago

14

A walk-a-thon was held at a local middle school. These are the average distances and times for three walkers at different times

during the walk-a-thon. Lakeisha: distance- 7/8 and time- 18 minutes Baydan: distance-9/10 and time- 22 minutes Madison: distance-4/5 and time- 17 minutes. If the total distance of the route was 2 miles who completed the route first? How long did it take them if they stayed at a constant rate?

1 answer:

Mekhanik [1.2K]2 years ago

6 0

The person that completed the 2 miles route first is Lakeisha and he did it in a time of 41.15 minutes

<h3>How to find total time from distance?</h3>

The average distances and times are as follows;

Lakeisha: distance = 7/8; Time = 18 minutes

Baydan: distance = 9/10; Time = 22 minutes

Madison: distance = 4/5; Time = 17 minutes

Formula for speed is;

Speed = Distance/Time

Speed of Lakeisha = (7/8)/18 = 0.0486 Miles per minutes

Speed of Bayden = (9/10)/22 = 0.041 Miles per minutes

Speed of Madison = (4/5)/17 = 0.047 Miles per minutes

Thus, the person that will complete the 2 miles route first is the person with the fastest speed which is Lakeisha.

Time he will take to complete the 2 miles route = 2/0.0486 = 41.15 minutes

Read more about time from distance at; brainly.com/question/17146782

#SPJ1

You might be interested in

1. in mathematics, what is money?

Verizon [17]

Answer:

Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular country or socio-economic context.

Step-by-step explanation:

brainliest please

6 0

3 years ago

1.How many more people prefer math to history?

slega [8]

Answer:

1) 9. 2) 11. 3) art and science

This is your answer ☺️☺️☺️

8 0

3 years ago

Read 2 more answers

Need help simplifying this

diamong [38]

The simplified answer is $\frac{\left(12 x^{2}+7 x y-4 y z-3 x z+3 y^{2}\right)}{6 x^{2}+3 x z+2 x y+y z}$ .

<u>Step-by-step explanation:</u>

$$\frac{3 y+2 x}{z+2 x}-\frac{2 y-3 x}{3 x+y}-\frac{2 z(y+3 x)}{6 x^{2}+3 x z+2 x y+y z}$

To add or subtract denominators of the fraction must be same.

If it is not the same, we must take LCM of the denominators. and so we can add the fractions.

To make the denominator same multiply the 1st term $(\frac{3x+y}{3x+y})$ and 2nd term by $(\frac{z+2x}{z+2x})$

= $\frac{(3 y+2 x)(3 x+y)}{(z+2 x)(3 x+y)}-\frac{(2 y-3 x)(z+2 x)}{(3 x+y)(z+2 x)}-\frac{2 z(y+3 x)}{6 x^{2}+3 x z+2 x y+y z}$

LCM of the denominators is 6x²+ 3xz + 2xy +yz.

Multiply the factors in the numerator.

= $\frac{\left(6 x^{2}+3 y^{2}+11 x y\right)}{(z+2 x)(3 x+y)}-\frac{\left(2 y z+4 x y-3 x z-6 x^{2}\right)}{(3 x+y)(z+2 x)}-\frac{2 z y+6 x z}{6 x^{2}+3 x z+2 x y+y z}$

Now, the denominators are same, you can subtract it.

= $\frac{\left(6 x^{2}+6 x^{2}+11 x y-4 x y-2 y z-2 y z+3 x z-6 x z+3 y^{2}\right)}{6 x^{2}+3 x z+2 x y+y z}$

= $\frac{\left(12 x^{2}+7 x y-4 y z-3 x z+3 y^{2}\right)}{6 x^{2}+3 x z+2 x y+y z}$

Thus the simplified solution is $\frac{\left(12 x^{2}+7 x y-4 y z-3 x z+3 y^{2}\right)}{6 x^{2}+3 x z+2 x y+y z}$

4 0

4 years ago

If rectangle WXYZ is slid three units to the right what will be the coordinates of point W?

Katen [24]

<span>C) (3, 5) i hope that help </span>

4 0

4 years ago

Read 2 more answers

Please help me with this!!

Art [367]

Answer: Choice C) 115 degrees

--------------------------------

Explanation:

The three angles are 42, 73 and 65 degrees. Let's call them x,y, and z respectively
x = 42
y = 73
z = 65

To find an exterior angle for x, we subtract the given angle x from 180
180-x = 180-42 = 138
The exterior angle adjacent to angle x is 138 degrees. This isn't listed so we move on

Do the same for y
180-y = 180-73 = 107
This isn't listed either. So we move on

Repeat for angle z
180-z = 180-65 = 115
This is listed as choice C. That's why choice C is the answer

4 0

4 years ago