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
elixir [45]
3 years ago
10

In June, a runner ran a mile in 7:45. In September, the runner ran a mile in 5:51. Is the percent of change in time an increase

or a decrease? Find the percent of change from June to September. Round to the nearest hundredth of a percent.
Mathematics
1 answer:
Mariulka [41]3 years ago
7 0
Since it takes less time in September than in June, this is a DECREASE.  The percent decrease.  The time is different by 114 seconds, divide this by the original time of 465 seconds and then convert to a percent, by multiplying by 100.  You should get 114/465 = 0.245 then x 100 = 24.5% decrease.
You might be interested in
How do you solve <br>x-3/(x-4) + 4= 3x/3
muminat
<span>x - 3/(x - 4) + 4 = 3 × x/3
</span>
<span><span>x^2−19/</span><span>x−4</span></span>=x
<span>Step 1: Multiply both sides by x-4.

</span><span><span><span>x^2</span>−19</span>=<span><span>x^2</span>−<span>4x

</span></span></span><span><span><span><span>x^2</span>−19</span>−<span>x^2</span></span>=<span><span><span>x^2</span>−<span>4x</span></span>−<span>x^2</span></span></span><span>(Subtract x^2 from both sides)

</span><span><span>−19</span>=<span>−<span>4x</span></span></span>
<span><span>−<span>4x</span></span>=<span>−19</span></span><span>(Flip the equation)

</span><span><span><span>−<span>4x</span></span><span>/−4</span></span>=<span><span>−19</span><span>/−4  </span></span></span>(Divide both sides by -4)<span>Answer.
x=<span>19/4
</span></span><span>Check answers. (Plug them in to make sure they work.)</span>













8 0
3 years ago
What is 80% rounded to the nearest tenth?
Sauron [17]

Answer:

80

Step-by-step explanation:

the 80 is the tenth part so you do nothing its a trip up qustion

5 0
2 years ago
at a point P on the parabola x^2=4ay a normal PK is drawn. From vertex O, a perpendicular OM is drawn to meet the normal at M. S
saveliy_v [14]
<span>Answer: Its too long to write here, so I will just state what I did. I let P=(2ap,ap^2) and Q=(2aq,aq^2) But x-coordinates of P and Q differ by (2a) So P=(2ap,ap^2) BUT Q=(2ap - 2a, aq^2) So Q=(2a(p-1), aq^2) which means, 2aq = 2a(p-1) therefore, q=p-1 then I subbed that value of q in aq^2 so Q=(2a(p-1), a(p-1)^2) and P=(2ap,ap^2) Using these two values, I found the midpoint which was: M=( a(2p-1), [a(2p^2 - 2p + 1)]/2 ) then x = a(2p-1) rearranging to make p the subject p= (x+a)/2a</span>
6 0
3 years ago
What is the correct answer?
Fynjy0 [20]
I believe it’s 12. But I’m not sure
8 0
2 years ago
Read 2 more answers
HELP!!! HELPPP!!!
mihalych1998 [28]

Answer:

22.75

I did some work to try and find this answer sorry if it is wrong I tried.

7 0
3 years ago
Other questions:
  • What is the area of the object above?
    11·1 answer
  • Negative 12 over negative 6, I forgot what to do
    8·2 answers
  • What times what equal negative fifteen?
    9·1 answer
  • If Mr. arenth wants to put new carpeting in the room shown, how many square feet should he order L= 14ft. W = 6c-8ft. L= 5+3c ft
    10·2 answers
  • As men age, their testosterone levels gradually decrease. This may cause a reduction in lean body mass, an increase in fat, and
    5·1 answer
  • 21 billion as how much more than 9.8 billion write it in scientific notation
    7·2 answers
  • Draw an angle and then draw the opposite ray to one of its sides to form a linear pair. Find the measure of the angle formed by
    13·1 answer
  • PLZ HELP MEEE I REALY NEED IT PLZ SHOW YOUR WORK I NEED THE WORK TO BE SHOWN!!!
    11·2 answers
  • Pls help me with this page I used all of my points
    11·1 answer
  • 8(x - 6) = -(x + 3) step by step<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!