1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kozerog [31]
3 years ago
15

Amy is training for a half marathon. in practice, she runs 2 miles in 15 minutes. If she continues at the same rate, how many mi

les will she run in 1 hour?
A. 4
B. 8
C. 16
D. 30
Mathematics
1 answer:
kipiarov [429]3 years ago
3 0

Step-by-step explanation:

B. 8

she will run for 8 miles,

<h2>step</h2>

find Amy's speed

convert the minutes into hours by dividing by 60

\frac{2}{15 \times  \frac{1}{60} }  \\  = 8 \: miles \: per \: hour

find the number of miles ran by multiplying the speed by the time, ie

8 \times 1 = 8 \\  \: therefore \: the \: answer \: is \:  \: 8 \: miles

You might be interested in
I need help ASAP on this algebra question
Misha Larkins [42]

Answer:

As x goes to negative infinity, g(x) goes to zero.

As x goes to positive infinity, g(x) goes to zero.

(So the answer is the second option)

Step-by-step explanation:

We have the function g(x)=\frac{1}{x^2}

First, let's look at what happens when we input smaller and smaller numbers

g(-10)=\frac{1}{100} \\\\g(-100)=\frac{1}{10000}

As we can see, as we input smaller and smaller numbers, the answer gets smaller.

Eventually, these fractions will be so small that they will get closer and closer to zero.

This same thing applies to larger and larger numbers, so the end behavior of each side will both be zero.

4 0
3 years ago
Which of the following strategies is appropriate for factoring polynomials with 4 terms?
labwork [276]
I would say D, determine if it can be factored by grouping (sorry, I forgot to put in the answer here).
5 0
3 years ago
What does (26/13).(-7)+14-4=
Bond [772]

Answer:

-4

Step-by-step explanation:

1. Always start with the parenthesis. (26/13) = 2

2. Then multiply. 2*-7 = -14

3. After, you add 14 to your precious answer (-14) then subtract 4.

   -14 + 14 = 0 - 4 = -4

5 0
3 years ago
F(x) = -4x2 + 4x – 4<br> Find f(3)
ValentinkaMS [17]

F(3) occurs when x =3. So lets plug 3 into our equation.

f(3) = -4(3)^2 + 4(3)-4\\f(3) = -4(9) + 12- 4\\f(3) = -36 + 12- 4\\f(3)= -28

F(3) = -28

I hope this helps! :)

5 0
3 years ago
Solve the system of equations using substitution and Elimination
juin [17]
<h2>Greetings!</h2>

Answer:

y = \frac{-18}{7} and x = \frac{50}{7}

Step-by-step explanation:

To solve simultaneous equations, you need to have the number in front of both x's or y's the same. (signs doesn't matter)

To get -x to -10x we simply  need to multiply the first equation by 10:

-x * 10 = -10x

-9y * 10 = -90y

16 * 10 = 160

-10x - 90y = 160

Now we can add the two equations:

-10x + 10x = 0

-90y + 20y = -70y

160 + 20 = 180

-70y = 180

70y = -180

7y = -18

y = \frac{-18}{7}

Now plug \frac{-18}{7} into the second equation:

10x + 20(\frac{-18}{7}) = 20

10x - \frac{360}{7} = 20

Move the \frac{360}{7} over to the other side, making it a positive:

10x = 20 + \frac{360}{7}

10x = \frac{500}{7}

Divide both sides by 10:

x = \frac{50}{7}

So y = \frac{-18}{7} and x = \frac{50}{7}


<h2>Hope this helps!</h2>
5 0
3 years ago
Other questions:
  • Is y=6/5x proportional
    8·2 answers
  • A company manufactures two types of trucks. Each truck must go through the painting shop and the assembly shop. If the painting
    10·2 answers
  • Is 5 a solution to the equation 2x^2 + 10 = 60 yes or no
    7·2 answers
  • (?) (-4) = -24<br><br> What is the value of (?)
    14·2 answers
  • The volume of a cone is 3x* cubic units and its height is x units.
    14·1 answer
  • Simplify the expression. 1.4 – 5.5 – 1.73 + 1.8 – 1.09
    13·1 answer
  • A cruise ship is traveling at a speed of 20 knots. A knot is approximately equal to 1.151 miles per hour. What is the approximat
    12·1 answer
  • Graph the piecewise-defined function.
    11·1 answer
  • If the graph of an equation has a slope of 3 and passes through the point (1, -1). What is the equation?
    8·1 answer
  • PLEASE HELP WITH #9! I really don't remember how to do this. THANKS.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!