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
zhuklara [117]
3 years ago
15

Kelly Ann took 15 minutes to walk from her home to the library. Her average speed was 3 miles in 45 minutes. how far was it from

Kelly Ann's house to the library? (PLEASE SHOW STEPS!!)
Mathematics
2 answers:
Anvisha [2.4K]3 years ago
6 0
Ok; Since we know that in 45 min, she can walk 3 miles, we can divide it to see how many minutes it takes for her to walk 1 mile. 45 divided by 3 is 15. Which means it takes her 15 minutes to walk 1 mile. If we look back at the beginning, it says she takes 15 minutes. Now that we know that it takes her 15 minutes to walk 1 mile, the answer is that it takes her 1 mile to walk to the library.
Scorpion4ik [409]3 years ago
6 0
Really simple.

You know that speed is v = d/t
so 3/45 = 1/15  or 1 mile per 15 mins

So since she took 15 mins i know the library is 1 mile
You might be interested in
Cynthia Besch wants to buy a rug for a room that is 1919 ft wide and 2727 ft long. She wants to leave a uniform strip of floor a
yulyashka [42]

Answer:

The dimension of the rug would be 17 ft × 9 ft.

Step-by-step explanation:

Given

length of the room = 27 ft.

width of the room = 19 ft.

suppose, she leaves a uniform strip of x ft. around the rug.

So,

The length of rug = (27-2x)ft.

Width of rug= (19-2x)ft.

∴ Area of the rug= length×width

                            =  (27-2x)(19-2x)

                            =  513-54x-38x+4x^2

                            =   513-92x+4x^2

According to the question,

513-92x+4x^2=153

513-92x+4x^2-153=0        ( subtract 153 both sides)

4x^2-92x+360=0

4(x^2-23x+90)=0

x^2-23x+90=0

x^2-(18+5)x+90=0            ( Middle term splitting)

x^2-18x-5x+90=0

x(x-18)-5(x-18)=0

(x-5)(x-18)=0

x-5=0 or x-18=0             ( zero product property)

x=5 or x=18

if x=18, dimension would be negative  ( Not possible)

Thus, x= 5

Hence,

length of rug= 27-10=17 ft.

width of rug= 19-10=9 ft.

8 0
3 years ago
Please answer both questions determine whether the function has an inverse function
Eduardwww [97]

Answer:

Pay attention to class

Step-by-step explanation:

8 0
3 years ago
Okay so I NEED help tonight. Please someone I really have to finish this tonight.
nlexa [21]
What do you need to finish
6 0
3 years ago
4(x − 3) − 5(x + 1) = 3 Which of the following algebraic properties is not needed to solve this equation?
skelet666 [1.2K]
Hi there!

To solve this problem, you need to use the distributive property. You distribute the 4 inside the parenthesis as well as the 5.

Hope this helps!
7 0
3 years ago
Find the value of x.
Elan Coil [88]

Answer:

x=6.625

Step-by-step explanation:

I did 17x -23+7x+2 then I simplified it to 24x-21 =180 then I cancelled out 21 then I got 24x=159 then cancelled out 24 then divided 159 by 24 and then got 6.625

3 0
3 years ago
Other questions:
  • How do find the length x
    8·2 answers
  • Joanne had $115 to spend at the mall. She spent 23% of that money on a shirt. Joanne spent $___ on the shirt.
    6·2 answers
  • Help please...........
    8·2 answers
  • Eva wanted to fill bags with ¾ pounds of trail mix. She started with 11 ⅜ pounds but ate ⅛ pound before she started filling the
    6·1 answer
  • What is the perimeter of the rectangle?
    15·2 answers
  • Please answer and put how
    12·2 answers
  • Cosy of a comic book: $3.95 markup: 20%
    14·1 answer
  • PLEASE HELP NEED TO PASS THIS GEOMETRY TEST BEFORE SCHOOL ENDS
    15·1 answer
  • Eric made a scale drawing of the middle school. The scale he used was 1inch=5feet. If the gym is 30 inches by 20 inches in the d
    7·2 answers
  • Please help:)I’m not good at math and need to get this done ASAP
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!