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4 years ago

Look at the two equations:

Mathematics

1 answer:

marin [14]4 years ago

4 0

Subtract 6 from both sides, leaving only 3x on one side and 15 on the other. divide 15 by 3 and get 5 for x. 3(5)+6=21

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Rachel is walking around her neighborhood. If she walks 1/3 mile in 1/6 hour, how fast is Rachel walking in miles per hour?

Lilit [14]

You would first want to figure out how many minutes 1/6 of an hour is. That means that it took Rachel 1/3 mile in 10 min. If you multiply 10 by 3, you know that it took 30 minutes for one mile. She is walking at a speed of 2mph.

6 0

3 years ago

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or n

Ulleksa [173]

Answer:

b. negative; as time passes, speed decreases

Step-by-step explanation:

Given

$(x,y) = \{(5, 15), (10, 13), (15, 11), (20, 10), (25, 9)\}$

Required

Determine the type of correlation

Split the above values as:

$x \to 5,10,15,20,25$

$y \to 15,13,11,10,9$

Notice that as time (x) increases from 5 to 10, and then 15......

Speed (y) value reduces from 15 to 13 .....

The above scenario represents a negative correlation

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<em>Hence, (b) is correct.</em>

3 0

3 years ago

Solve for x. 5x - 1 = 26 x = x = 5 x = -5

Doss [256]

Answer:

x = 27/5

Step-by-step explanation:

5x - 1 = 26

Add 1 to each side

5x - 1 = 26

5x-1+1 = 26+1

5x = 27

Divide each side by 5

5x/5 = 27/5

x = 27/5

5 0

3 years ago

3) This table represents the price of milk for various years. What is the percent of increase from 1980 to 2010 1 Year Price 198

kupik [55]

Answer:

124.375% increase

Step-by-step explanation:

From 1980 to 2010 there was a 124.375% increase

6 0

3 years ago

Help appreciated !!!!

sergiy2304 [10]

Answer:

Step-by-step explanation:

The circle is divided into 5 sections. The probability that the needle lands on a particular color is equally likely.

So,

$P(red) = \frac{1}{5}\\\\P(green) = \frac{1}{5}\\\\$

Probability of not blue = 1 - Probability of blue

$= 1 - P(blue)\\\\=1 - \frac{1}{5}\\\\= \frac{4}{5}$

3 0

3 years ago