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DochEvi [55]
3 years ago
9

Devon started a bike race at 11:30 a.m and he finished it at 3:17 p.m, How long did it take him to finish the race?

Mathematics
2 answers:
Kobotan [32]3 years ago
6 0
Three hours and 47 minutes 

Umnica [9.8K]3 years ago
4 0
4 hours and 13 minutes
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A right triangle with base 3 cm and height 4 cm. What is the hypotenuse
statuscvo [17]

Answer:5

Step-by-step explanation:

3^2+4^2=c^2

9+16=c^2

25=c^2

\sqrt{25}=c

5=c

7 0
3 years ago
Evaluate the expression 29-3(9-4)
pav-90 [236]

Answer:

14

Step-by-step explanation:

PEMDAS - First Do Parentheses

29-3(5)

Then Do Multiplication

29-15

Then Finish with Subtraction

<u>14</u>

3 0
3 years ago
Read 2 more answers
a rocket is 1 mile above thw earth in 30 seconds and 5 miles above the earth in 2.5 minutes what is the rockets rate of change i
Veronika [31]
Rate of Change:

At 1 mile in 30 seconds.
At  5 miles in 2.5 minutes.  2.5 minutes = 2.5*60 = 150 seconds.

Rate of change =   Change in height / Change in time

                            =   (h₂-h₁)/(t₂-t₁)

                            =   (5 -1) /(150 -30) = 4/120 = (1/30) = 0.0333 miles per second.

                             = (1/30) miles per second or 0.0333 miles per second.


To have the answer in miles per minute.

         (1/30) miles per second = (1/30) miles/second.

60 seconds = 1minute
1 second = (1/60) minute.

(1/30) miles/second  =  (1/30) miles/(1/60)minute
                                   =   (1/30) *60 miles / minute
                                   =    2 miles per minute.
8 0
3 years ago
Find 4 consecutive even integers such that when three times the smallest of the intagers is added to twice the largest their sum
zhannawk [14.2K]
If x is the first of the integers then the statement is:

(x) , (x+2) , (x+4) , (x+6)

This means that the smallest is x and the largest is x + 6

so:
3(x) + 2(x+6) = 293
3x + 2x + 12 = 293
5x = 281
x = 56.2
This gives us a none integer (decimal)
What now?

Wait remember how x started as the lowest? what if x was the highest instead?

x, x-2, x-4, x-6
so:

3(x-6) + 2(x) = 293
5x = 315
x = 62.2

This is as close as have gotten to the answer
Cant seem to get an integer.
Maybe error in the question or some bad math on my part.


3 0
3 years ago
Can someone please help me
xenn [34]

Answer:

install socratic that give u all math questions

5 0
3 years ago
Read 2 more answers
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