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Rashid [163]
3 years ago
9

A crew of highway workers paved 2/15 miles in 20 minutes. If they work at the same rate, what portion of a mile will they pave i

n one hour?
Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0
Since they completed 2/15 miles in 20 mins.

There are 60 mins in an hour so we can multiply they amount of work they did by 3 and that will equal .4
You might be interested in
I need help!
arsen [322]

The instantaneous rate of change of the function f(x) = −4x² − 3x + 1 at the point x = -3 is 21.

<h3>What is the instantaneous rate of change of the function at the given point?</h3>

The instantaneous rate of change is simply the change in the derivative value at a specific point.

Given the data in the question;

  • f(x) = −4x² − 3x + 1
  • Point x = -3

To determine the instantaneous rate of change of the function, first find the derivative of the function.

f(x) = −4x² − 3x + 1

Applying sum rule, with respect to x

d/dx[ -4x² ] + d/dx[ -3x ] + d/dx[ 1 ]

[ 2 × -4x¹ ] + [ 1 × -3x⁰ ] + d/dx[ 1 ]

[ -8x ] + [ -3 ] + d/dx[ 1 ]

-8x - 3 + d/dx[ 1 ]

Differentiate using constant rule

-8x - 3 + [ 0 ]

-8x - 3

f'(x) = -8x - 3

Next, plug x = -3 into the derivative and simplify.

f'(x) = -8x - 3

f'(-3) = -8(-3) - 3

f'(-3) = 24 - 3

f'(-3) = 21

Therefore, the instantaneous rate of change of the function f(x) = −4x² − 3x + 1 at the point x = -3 is 21.

Learn more about instantaneous rate of change here: brainly.com/question/28122560

#SPJ1

7 0
1 year ago
What is a value of -12+35
mote1985 [20]
The answer for -12+35 is 23
8 0
2 years ago
8x-3y=5 I need this awnser
frutty [35]
Go too math websites!
8 0
3 years ago
Read 2 more answers
Round 68,413 to the nearest thousand
meriva
8 is in the thousands place.

Look to the number in the hundreds (right next to it). It is a 4. Because 4 is less than 5, round down.

68413 rounded down in the thousands place becomes 68000

68000 is your answer


hope this helps
5 0
3 years ago
Write a function rule that represents the situation.
Helen [10]

Answer:

i will

Step-by-step explanation:

8 0
3 years ago
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