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
padilas [110]
2 years ago
13

Jessica left her running shoes at school yesterday. Today she walked 4 miles to school to get her shoes, she ran home along the

same route, and the total time for both trips was 2 hours. Jessica walked and ran at constant speeds, and she ran 3 miles per hour faster than she walked.
What was Jessica's walking speed in miles per hour?
Mathematics
2 answers:
Vikentia [17]2 years ago
7 0

Jessica left her running shoes at school yesterday. Today she walked 4 miles to school to get her shoes, she ran home along the same route, and the total time for both trips was 2 hours. Jessica walked and ran at constant speeds, and she ran 3 miles per hour faster than she walked.

What was Jessica's walking speed in miles per hour?

ehidna [41]2 years ago
3 0

Answer:

\small\textrm\green{-------------------------------------------------------------------}\small\textrm\green{-------------------------------------------------------------------}

\small\textrm\green{-------------------------------------------------------------------}\small\textrm\blue{-------------------------------------------------------------------}\small\textrm\green{-------------------------------------------------------------------}\small\textrm\blue{-------------------------------------------------------------------}\small\textrm\green{-------------------------------------------------------------------}\small\textrm\blue{-------------------------------------------------------------------}

You might be interested in
What is the value of side x?<br> 4.<br> 5<br> x =
kolezko [41]

Answer:

Doit your onw

Step-by-step explanation:

kdjdbfdbbswwwk

7 0
3 years ago
Tuto
Damm [24]

Answer:

8r+8pg-pq

Step-by-step explanation:

The subtractable pg cancels out one of the 9 pg's. So 9 pg-1 pg= 8 pg

Hope this helps!

8 0
3 years ago
Please help, I didn't learn this in class!
NemiM [27]
Solve the following system using elimination:
{-2 x + 2 y + 3 z = 0 | (equation 1)
{-2 x - y + z = -3 | (equation 2)
{2 x + 3 y + 3 z = 5 | (equation 3)

Subtract equation 1 from equation 2:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x - 3 y - 2 z = -3 | (equation 2)
{2 x + 3 y + 3 z = 5 | (equation 3)

Multiply equation 2 by -1:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+3 y + 2 z = 3 | (equation 2)
{2 x + 3 y + 3 z = 5 | (equation 3)

Add equation 1 to equation 3:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+3 y + 2 z = 3 | (equation 2)
{0 x+5 y + 6 z = 5 | (equation 3)

Swap equation 2 with equation 3:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+5 y + 6 z = 5 | (equation 2)
{0 x+3 y + 2 z = 3 | (equation 3)

Subtract 3/5 × (equation 2) from equation 3:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+5 y + 6 z = 5 | (equation 2)
{0 x+0 y - (8 z)/5 = 0 | (equation 3)

Multiply equation 3 by 5/8:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+5 y + 6 z = 5 | (equation 2)
{0 x+0 y - z = 0 | (equation 3)

Multiply equation 3 by -1:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+5 y + 6 z = 5 | (equation 2)
{0 x+0 y+z = 0 | (equation 3)

Subtract 6 × (equation 3) from equation 2:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+5 y+0 z = 5 | (equation 2)
{0 x+0 y+z = 0 | (equation 3)


Divide equation 2 by 5:
{-(2 x) + 2 y + 3 z = 0 | (equation 1)
{0 x+y+0 z = 1 | (equation 2)
{0 x+0 y+z = 0 | (equation 3)

Subtract 2 × (equation 2) from equation 1:
{-(2 x) + 0 y+3 z = -2 | (equation 1)
{0 x+y+0 z = 1 | (equation 2)
v0 x+0 y+z = 0 | (equation 3)


Subtract 3 × (equation 3) from equation 1:
{-(2 x)+0 y+0 z = -2 | (equation 1)
{0 x+y+0 z = 1 | (equation 2)
{0 x+0 y+z = 0 | (equation 3)

Divide equation 1 by -2:
{x+0 y+0 z = 1 | (equation 1)
{0 x+y+0 z = 1 | (equation 2)
{0 x+0 y+z = 0 | (equation 3)

Collect results:

Answer: {x = 1, y = 1, z = 0

7 0
3 years ago
Solve for n <br> 3n - 7 = 6n - 2n
Vika [28.1K]

Answer: n=-7

Step-by-step explanation:

3n-7=6n-2n

3n-7=4n

-7=n

n=-7

6 0
3 years ago
Read 2 more answers
What is the same of the data? <br> skewed right<br> skewed left<br> symmetrical<br> not enough info
Solnce55 [7]
Hi djdjfjfjfjfjgjtificnfnfnfjfj
5 0
2 years ago
Other questions:
  • What is 3.2 m converted to centimeters?
    9·1 answer
  • if the next planet is 24 light years away, How long would it take you to get their if your going 5 light years per hour
    11·1 answer
  • Steve will write the list of consecutive integers, starting with 1, at the speed of 5 digits per second. What will be the sum of
    11·2 answers
  • Which linear inequality is represented by the graph?
    10·1 answer
  • Which of the following is the best description of the graph below?
    10·1 answer
  • How many 2/3s are in 2?
    9·1 answer
  • PLZZZ SEND HELPPP ANSWER QUICKK
    12·2 answers
  • What is the value of x <br> 1.4x + 2.6x = -16
    7·2 answers
  • A comparison of two quality's by division is?
    10·1 answer
  • Use properties to evaluate<br> (2)-27<br> 3)<br> QUESTION<br> 3<br> -3<br> O O O O<br> 27<br> -27
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!