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lyudmila [28]
3 years ago
5

Michelle leaves her house at 5:20 Am To Get To Work, Which is 20 miles away. If she drives 40 miles an hour, what time will she

arrive at work
Mathematics
2 answers:
Paraphin [41]3 years ago
7 0
It will take michelle 20 minutes to get to work
Leto [7]3 years ago
3 0

Answer:

<em>5:50 AM</em>

Step-by-step explanation:

First, we find the time it takes to drive.

speed = distance/time

time * speed = distance

time = distance/speed

time = ? (unknown)

distance = 20 miles

speed = 40 mph

time = distance/speed = (20 miles)/(40 mph) = 0.5 hour

0.5 hour * 60 min/hour = 30 minutes

It takes 30 minutes to drive. Now we add 30 minutes to 5:20 AM to find the arrival time.

5:20 AM + 0:30 = 5:50 AM

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Y=x² - 6x + 7 in quadratic vertex form (no need to show work)
ioda

Just use a calculator

5 0
3 years ago
What are the zeros of the polynomial function? <br><br> F(x)= x^2 +12x
Pavel [41]

Answer:

x = 0 and x = -12 are the two zeroes

Step-by-step explanation:

"Zeroes" of a function are also called the solutions, roots or x intercepts.

The zeroes are the numbers that give the function a values of 0, so find what value for 'x' yields F(x) = 0 as a result.

With quadratic equations (equations with x² as the largest exponent), you factor the equation.  

Step 1: Set the equation equal to zero

  x² + 12x = 0

 Depending on the equation, there are several methods you can use to factor, for this one we can factor out an 'x' since both terms have an 'x' in them.  We get...

  x(x + 12) = 0      

So now, using the "zero product property" which means that if two things are multiplied together, and the result is zero, then either the first term is zero, the second term is zero, or they are both zero.  So we set each term equal to zero and solve.

So

either    x = 0     or        x + 12 = 0

Solve each for x to get your two anwers.

x= 0 is already solved, so 0 is our first zero

Now solve

x + 12 = 0  

  x = -12             (subtract 12 from both sides to isolate x)

 

8 0
3 years ago
What is the value of x
Andru [333]
The answer to your question is 54 because you have to bring over 2 to 3 and it would be 1x then bring over 52 and add it to 2 = 54
8 0
2 years ago
Hi i really need help with these 2 questions please!
djyliett [7]

Answer:

Look at attachment

4 0
2 years ago
Read 2 more answers
Please help figure out I will give brainliest!
noname [10]

Answer:

40 student 110 adult

this is using desmos

but to smash the equation you can go like basically we have to cancel out each variable to solve for the other

3x + 8y = 1000

x + y < =150

-3(x + y <= 150)

-3x -3y = -450

3x + 8y = 1000

5y = 550

y= 110

3x + 8 y = 1000

-8(x+y<=150) = -8x - 8y <= -1200

-5x = -200

\frac{ - 5x}{ - 5 }   = x

\frac{ - 200}{ - 5}  = 40

x= 40

40 kids 110 adults

7 0
2 years ago
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