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olga55 [171]
3 years ago
13

The following points for a function are graft in a coordinate plane: (1,2), (3,8), (4,11), and (6,17).

Mathematics
1 answer:
Yanka [14]3 years ago
4 0
I don’t really know but I want to answer so I can get the account to 100%
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Lin rode a bike 20 miles in 150 minutes. If she rode at a constant speed, how far did she ride in 15 minutes? How long did it ta
coldgirl [10]

Hey there! :)

Answer:

First part: 2 miles.

Second part: 45 minutes

Third part: 8 mph.

Step-by-step explanation:

We can divide this question into 3 parts.

Begin by solving for the distance traveled after 15 minutes by creating a ratio:

\frac{20 mi}{150min}  = \frac{x}{15 min}

Cross multiply:

20 · 15 = 150 · x

300 = 150x

300/150 = 150x/150

x = 2 miles.

2nd part: How long it took her to ride 6 miles.

Set up another ratio similar to the one used before:

\frac{20 mi}{150min}  = \frac{6mi}{x min}

Cross multiply:

20 · x = 6 · 150

20x = 900

20x/20 = 900/20

x = 45 minutes.

3rd part:

For this part, we will need to convert from minutes to hours.

\frac{20 mi}{150 min}* \frac{60 min}{1 hr} = \frac{1200mi}{150hr}   = 8 mi/h

Therefore, her speed is 8 mph.

5 0
3 years ago
How do I solve this?
Len [333]
5 Girls + 3 Boys =8 (sample size)

Probability of choosing 1 boy P(1 B) = 3/8

Probability of NOT CHOOSING ANY BOY = 1-3/8 =5/8

Now apply the binomial probability to choose 3 Boys:

8C3(3/8)³(5/8)⁵ ==>P(All boys) = 0.28
7 0
3 years ago
U = y / xk <br><br> solve for x
Svetradugi [14.3K]

Answer:

x = y/ (Uk)

Step-by-step explanation:

U = y / xk

Multiply each side by xk

Uxk = y / xk *xk

U xk = y

Divide each side by Uk

U xk/ (Uk) = y/ (Uk)

x = y/ (Uk)

5 0
3 years ago
Read 2 more answers
The radius is 5 Given that the measurement is in centimeters, find the area of the circle to the nearest tenth. (Use 3.14
Vsevolod [243]

Answer:

A = 78.5 cm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

We know r =5 and pi = 3.14

A = 3.14 (5^2)

A = 3.14 (25)

A = 78.5 cm^2

6 0
2 years ago
.<br><br><br> A. 36<br><br> B. 72<br><br> C. –36<br><br> D. –72
Sophie [7]

Answer:

C. -36

Step-by-step explanation:

(-9)(-8) ÷ (-2)

C. -36

4 0
2 years ago
Read 2 more answers
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