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Dmitry_Shevchenko [17]
2 years ago
8

Lupe can ride her bike at a rate of 20 mph when there is no wind. On one particular day, she rode 2 miles against the wind and n

oticed that it took her the same amount of time as it did to ride 3 miles with the wind. How fast was the wind blowing
Mathematics
2 answers:
djverab [1.8K]2 years ago
6 0
2/20-w=3/20+w
40+2w=60-3w
5w=20
w=4mph
kipiarov [429]2 years ago
5 0
<span>Hint: let w=speed of wind in mph. Then 2/(20-w)=3/(20+w). Cross multiply and solve for w.</span>
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Ann aumento 60% las cantidades de
spin [16.1K]

Ella usó 60% más de lo requerido ⇒ ella usó (1 + 0.60) = 1.60 veces lo requerido.

Hombre, me alegro de saber algo de español. ¡Buena suerte compañero!

My main language is English lol

4 0
2 years ago
A frequency distribution lists the _________ of occurrences of each category of​ data, while a relative frequency distribution l
Tanzania [10]

Answer:

A frequency distribution lists the<u> number</u> of occurrences of each category of​ data, while a relative frequency distribution lists the <u>proportion</u> of occurrences of each category of data.

Explanation:

A "frequency distribution" is one of the ways in organizing a data, either by <em>listing the information, putting them in a table or showing them in a graph.</em> The items in the list (distinct values) are then counted when it comes to the number of times they've occurred.

Thus, this explains the first answer, "number."

On the other hand, a "relative frequency distribution" refers to the proportion of the overall number of observations in a particular category.  <u>You can get this by dividing each frequency with the total number of data in a sample.</u>

Thus, this explains the second answer, "proportion."

8 0
2 years ago
Which of the following shows the graph of y = –(2)x – 1? On a coordinate plane, a curve is level at y = 0 in quadrant 2 and then
Salsk061 [2.6K]

Answer:

On a coordinate plane, a curve is level at y = -1 in quadrant 3 and then decreases rapidly into quadrant 4. It crosses the y-axis at (0, -2).

Step-by-step explanation:

y = -2 ^x -1

6 0
2 years ago
Read 2 more answers
Which is the smallest 0.37 0.194 0.6 0.473 0.29
wolverine [178]

0.37

0.194

0.6

0.473

0.29

the smallest digit at tenth place is 1 in 0.194, so 0.194 is the smallest here

4 0
2 years ago
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An artist cuts 4 squares with sides of length x ft from the corners of a 12 ft-by-18 ft rectangular piece of sheet metal. She be
ehidna [41]

Answer:

V = 216x - 60x^2 + 4x^3

Step-by-step explanation:

The volume V of the fountain is equal to:

V = L*W*h

Where L is the lenght of the fountain, W is the width of the fountain and h is the high of the fountain

We already know that h is equal to x. On the other hand, if we cut a square with side of length x, L and W are calculated as:

L = 18 - 2x

W = 12 - 2x

So, replacing L, W and h on the equation of the volume, we get:

V = (18-2x)*(12-2x)*x

Finally, simplifying the function we get:

V = ((18*12)+(18*(-2x))+(-2x*12)+((-2x)*(-2x)))*x

V = (216-36x-24x+4x^2)*x\\V = (216-60x+4x^2)*x\\V = 216x - 60x^2 + 4x^3

6 0
2 years ago
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