Ezra is participating in a marathon walk for charity. He knows he can walk 3 miles in 45 minutes. At the rate, how long will it take Ezra to walk 26 miles
Answers
make ratio or fraction
3:45 or 3/45=1/15
ratio=1:15
so 26 miles
for every 1 mile, add 15 minutes
26 miles so
26 times 15=390 minutes or 6.5 hours or 6 hours and 30 minutes
Related Questions
Which is different? Find "both" answers.a. Rewrite 1/3*3*3 using a negative exponent b. Write 3 to the negative third c. Write 1/3 cubed as a power d. Write (-3)*(-3)*(-3) as a power
Suppose that an insect population’s density, in thousands per acre, during year n, can be modeled by the recursive formula: a1 = 8 an = 2.9an – 1 – 0.2(an – 1)^2 Which of the following describes what is happening to the insect population for the first five years?
Write a power represented with a positive base and a positive exponent whose value is less than the base.
As the train’s engineer, Erin guided the train on a 64 mi run, which took 1.7 h. She then stopped on a side rail to let a second train pass. She then continued another 80 mi, which took 1.9 h.What was the train’s average speed for the entire run?
Answers
1/5 hour = 1/5 * 60 minutes
= 12 minutes
So
Randy in 12 minutes can walk for a distance of = 1/2 mile
Then
In 60 minutes Randy can walk for a distance of = [1/(2*12)] * 60
= (1/24) * 60
= 2.5
So Randy can walk 2.5 miles in 1 hour.
Answers
Final answer:
To perform the operation, first divide 1.5 by 2.5, which gives a result of 0.6. This result is already at the tenth place, so no further rounding is needed.
Explanation:
The question requires us to divide 1.5 by 2.5 and round the result to the nearest tenth. Let's go step by step:
Step 1: Perform the division: 1.5 ÷ 2.5 = 0.6
Step 2: Since the question asks for the answer to be rounded to the nearest tenth, we look at the decimal part of the number. The decimal part is 0.6, which is already at the tenth place.
So, 1.5 divided by 2.5 rounded to the nearest tenth is 0.6.
Learn more about Division and Rounding here:
#SPJ12
-4x + 2y + 5 + 9a
Answers
Step-by-step explanation:
Coefficient of:
x = -4
y = 2
a = 9
Answer:
the ansssswer id2y, -9a
-y + 12 = 4x
Solve with elimination
Answers
Then add the first equation to the second equation
4x +12 = -7y
-4x + 12 = y this eliminates the x's
24 = - 6y then divide by - 6
- 6 - 6
- 4 = y
So if you know that y = negative 4, you can substitute into either equation. I pick the second one because I am a lazy person.
-y + 12 = 4 x
-(-4) + 12 = 4 x combine your numbers
16 = 4 x then divide by 4
4 = x
So your solution is: x = 4 and y = -4 or this is also written (4, -4)
Does that work for you?
f(x) = –2x2 + 16x – 35
f(x) = x2 – 4x + 5
f(x) = 2x2 – 16x + 35
Answers
Answer:
Step-by-step explanation:
In order to solve the question, we have to derivate each function.
1) f(x) = x2 +4x -11
Then,
f'(x)= 2x +4
Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:
f'(4)= 2*4 +4 = 12 ≠ 0 then this function doesn't not have a minimum at (4, -3)
2) f(x) = –2x2 + 16x – 35
Then,
f'(x)= -4x +16
Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:
f'(4)= -4*4 16 = 4 ≠ 0 then this function have a critical point at (4, -3)
then,
f''(4) =-4 <0 then we have a minimum at (4, -3)
3) f(x) = x2 – 4x + 5
Then,
f'(x)= 2x -4
Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:
f'(4)= 2*4 -4 = 4 ≠ 0 then this function doesn't not have a minimum at (4, -3)
4) f(x) = 2x2 – 16x + 35
Then,
f'(x)= 4x -16
Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:
f'(4)= 4*4 -16 = 4 ≠ 0 then this function doesn't not have a minimum at (4, -3)
Answers
that you know how to find the volume of.
-- Find the volume of each piece.
-- Add up the volumes of all the pieces.