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
bonufazy [111]
2 years ago
7

A cyclist travels 9 miles in 45 minutes. What is his average speed in mph?

Mathematics
1 answer:
galben [10]2 years ago
6 0

45 minutes = 3/4 hour

so the cyclist's average speed is

(9 miles) / (45 minutes) = (9 miles) / (3/4 hour) = 36/3 mph = 12 mph

You might be interested in
Calculate a length of a square ground of perimeter 160m​
wlad13 [49]
Square Perimetre = Side x 4
So a length of a square ground is 160/4 = 40 (m)
5 0
2 years ago
Adjoa buys a cat toy that costs 6 dollars and a bag of cat litter that costs 7 dollars. If sales tax is 8%, what is the total pu
denpristay [2]

Answer:

$14.04

Step-by-step explanation:

5 0
3 years ago
2 of 6
Elodia [21]

Answer:

89:120

Step-by-step explanation:

convert the both times to minutes

2 hours is 120 mins

89:120

both divisible by 1

89:120

it cant be simplified further

8 0
3 years ago
What value of x would result in the numerical value of zero in the expression 7+x+(−10) ?
MAXImum [283]

Answer:

3

Step-by-step explanation:

7 plus three is 10, adding -10 to that equals zero.

4 0
2 years ago
A baseball is hit into the​ air, and its height h in feet after t seconds is given by h(t)= -16t^2+128t+2. The height of the bas
tankabanditka [31]

Answer:

\large \boxed{\sf \ \text{2 feet, 4 seconds, 258 feet } \ }

Step-by-step explanation:

Hello,

To know the height of the baseball when it is hit we have to compute h(0), as t = 0 is when the baseball is hit into the air.

h(0)=-16\cdot 0^2+128 \cdot 0+2=2

So, the answer is <u>2 feet.</u>

<u />

h(x) is a parabola which can be written as ax^2+bx+c, it means that the vertex is the point (-b/2a,h(-b/2a)).

The baseball reached its maximum height after

   \dfrac{-b}{2a}=\dfrac{-128}{-2*16}=\boxed{4 \text{  seconds}}

And the maximum height of the baseball is h(4).

h(0)=-16\cdot 4^2+128 \cdot 4+2=-256+512+2=\boxed{258 \ \text{feet}}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

8 0
3 years ago
Other questions:
  • This week an employee is scheduled to work 6 hours each day Monday through Friday, and 3.5 hours on Saturday morning. If the emp
    6·1 answer
  • What is the y-intercept of the equation of the line that is perpendicular to the line y =3/5x + 10 and passes through the point
    9·2 answers
  • Find the sum
    14·1 answer
  • Last one can anyone help me plz​
    5·1 answer
  • I NEED HELP !!!!!!!!!
    5·1 answer
  • I need help with this to
    12·1 answer
  • What’s the sum of 4/10 + 32/100
    14·2 answers
  • PLEASE HELP DEW IN 1 hour
    7·1 answer
  • I NEED HELP PLEASE IT WOULD REALLY MEAN AOT !!!!<br><br> NO ZOOMS OR LINKS!!!!
    6·1 answer
  • 10. Saul works two part-time jobs. Last week, he worked 14 hours at a shoe store, and 19
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!