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Shtirlitz [24]
2 years ago
4

Peter drove at a constant speed and covered 576 miles in 12 hours. How many miles would Peter cover in 14

Mathematics
2 answers:
Hunter-Best [27]2 years ago
4 0

Answer:

672 miles

Step-by-step explanation:

576/12= 48

every hour he drove 48 miles

48 x 14 = 672 miles

Inessa [10]2 years ago
3 0
If Peter can travel 576 miles in 12 hours, then to find his speed, we just have to divide 576 by 12. This will give us his speed in miles per hour:

576/12 = 48 miles/hour

If we know he can travel 48 miles in one hour, then to find distance traveled in 14 hours, just multiply the speed by 14.

48 * 14 = 672 miles

A: 672 miles
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Carolina is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus \$6$6dollar sign, 6 for each ho
Margarita [4]

For this case, the first thing we must do is define variables.

We have then:

t: number of hours

F (t): total charge

We write the function that models the problem:

F (t) = 6t + b

Where,

b: represents an initial fee.

We must find the value of b.

For this, we use the following data:

Her total fee for a 4-hour job, for instance, is $ 32.

We have then:

32 = 6 (4) + b

From here, we clear the value of b:

32 = 24 + b

32-24 = b

b = 8

Then, the function that models the problem is:

F (t) = 6t + 8

Answer:

the function's formula is:

F (t) = 6t + 8

7 0
2 years ago
Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p2 + 9p, where p and f(p)
Nimfa-mama [501]

Answer:

The population that gives the maximum sustainable yield is 45000 swordfishes.

The maximum sustainable yield is 202500 swordfishes.

Step-by-step explanation:

Let be f(p) = -0.01\cdot p^{2}+9\cdot p, the maximum sustainable yield can be found by using first and second derivatives of the given function: (First and Second Derivative Tests)

First Derivative Test

f'(p) = -0.02\cdot p +9

Let equalize the resulting expression to zero and solve afterwards:

-0.02\cdot p + 9 = 0

p = 450

Second Derivative Test

f''(p) = -0.02

This means that result on previous part leads to an absolute maximum.

The population that gives the maximum sustainable yield is 45000 swordfishes.

The maximum sustainable yield is:

f(450) = -0.01\cdot (450)^{2}+9\cdot (450)

f(450) =2025

The maximum sustainable yield is 202500 swordfishes.

6 0
2 years ago
9. Your school offers two English classes, three math classes and three
s2008m [1.1K]
There are 12 different ways to organize your schedule

There are 2 English classes
There are 3 math classes
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5 0
2 years ago
A maximum can occur at the each of the following except
Vlad [161]

Answer:

im pretty sure its B correct me if im wrong

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
an ellipse has a center at the origin, a vertex along the major axis at (13, 0), and a focus at (12, 0). What is the equation of
yan [13]
Hi, as the elipce has a center at the origion and tha major distance is the axis

\frac{x^2}{a^2} + \frac{y^2}{b^2}  = 1

But, 

c = 12        Distance of focus

a = 13   ->  Major distance

b = ?  -> 

But, 

\\ b^2 + c^2 = a^2
 \\ 
 \\ b^2 + 12^2 = 13^2
 \\ 
 \\ b^2 + 144 = 169
 \\ 
 \\ b^2 = 169 - 144
 \\ 
 \\ b^2 = 25
 \\ 
 \\ b =  \sqrt{5} 
 \\ 
 \\ b = 5



Then,


\\  \frac{x^2}{(13)^2} +  \frac{y^2}{(5)^2} = 1
 \\ 
 \\ or
 \\ 
 \\  \frac{x^2}{169} +  \frac{y^2}{25} = 1
5 0
2 years ago
Read 2 more answers
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