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svp [43]
3 years ago
8

Del ray can run 20 1/2 miles in 2 1/4 hours. How many miles per hour can he run?

Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0
20 \frac{1}{2} :2 \frac{1}{4} = \frac{41}{2}: \frac{9}{4}=  \frac{41}{2}* \frac{4}{9} =\frac{82}{9} =  9 \frac{1}{9} \ \ \text{miles per hour}
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Write the equation is logarithmic form 33 = 27
Vikki [24]
\bf log_{{  a}}{{  b}}=y \iff {{  a}}^y={{  b}}\qquad\qquad 
%  exponential notation 2nd form
{{  a}}^y={{  b}}\iff log_{{  a}}{{  b}}=y \\\\
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33=27\iff 33=3^{\underline{3}}\iff log_3(33)=\underline{3}
8 0
3 years ago
HURRY PLEASE PLEASE
Olegator [25]

Polynomials are algebraic expressions represented by variables and coefficients.

<h3>(a) How to determine the interval the open seats increased</h3>

This is the interval, where the open seats increase the same time the time in minutes increases.

From the graph, the open seats increases at the interval (100, 600)

<h3>(b) The time the first meeting ended</h3>

This is the first point where the curve changes its direction from decreasing values to increasing values

From the graph, the curve changes its direction at point (25,100)

Hence, the first meeting ended at 10:25 AM

<h3>(c) When there were 700 open seats</h3>

From the graph, we have:

(x,y) = (5, 700)

Hence, there were 700 open seats at 10:05 AM

<h3>(d) The average rate of change from 10:00 AM to 10:25 AM</h3>

At 10:00 AM, we have:

(x,y) = (0,800)

At 10:25 AM, we have:

(x,y) = (25,100)

So, the average rate of change is:

m = \frac{y_2 -y_1}{x_2 -x_1}

This gives

m = \frac{100 - 800}{25 - 0}

m = \frac{-700}{25 }

m = -28

Hence, the average rate of change from 10:00 AM to 10:25 AM is -28 people per minute

Read more about polynomials at:

brainly.com/question/4142886

7 0
2 years ago
Karen will run more than 35 miles this week. So far, she has run 17 miles. What are the possible numbers of additional miles she
777dan777 [17]
35-17=18
She will run at least 18 more miles. Miles (x) greater than or equal to 18
3 0
2 years ago
What is the y-intercept of the function f(x)=2/9x+1/3
____ [38]

Answer:

1/3

Step-by-step explanation:

The equation given to you is in y=mx+b form.

m is the slope which in this case would be 2/9.

b is the y-intercept which in this case would be 1/3

6 0
2 years ago
Read 2 more answers
the length of a rectangle is 2 more than the width and the perimeter is 80. find the dimensions of the rectangle
4vir4ik [10]
Let width = x  then
2x+ 2(x + 2) = 80
4x + 4 = 80
4x = 76
x = 19  

so the width is 19 and the length is 21 answer
5 0
3 years ago
Read 2 more answers
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