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
harina [27]
3 years ago
8

https://www.google.com/search?safe=active&q=Elvira+made+the+trip+on+Tuesday+and+David+made+the+same+trip+on+Wednesday+Elvira

+traveled+at+14+mph.+David+traveled+at+21+mph,+so+his+time+was+3+hours+less+than+Elvira%27s+time.+How+far+did+they+travel?
Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0

Answer:Let x and (x-3) represent Elvira's and David's times respectively


D = r*t  


Distances traveled are equal in this example***







14mph*x = 21mph(x-3)


solving for x


14x = 21x - 63


 63 = 7x


x = 9hr, the time that Elvira traveled.  David traveled 6hrs   (9hr-3hr = 6hr)




CHECKING our Answer***


14mph*9hr = 126mi = 21mph*6hr = 126mi



Step-by-step explanation:


You might be interested in
Which function is nonlinear?
lutik1710 [3]

Answer:

(-1,5), (0,4) ,(1,3) ,(3,1) is linear so dont pick it

(-4,-7), (-2,-6), (2,-4), (4,-3) is linear

you know what I'll just say it wait a minute is there like a other option

Step-by-step explanation:

U can tell by graphing them out yourself and if u see a straight line then it linear, and if you see a curved loop then it's non- linear. but I'll do it :)

4 0
3 years ago
The base of a pyramid is a rectangle with a width of 4.6 cm and a length of 9 cm. What is the height, in centimeters, of the pyr
Whitepunk [10]

Answer:

B: 2cm

Step-by-step explanation:

we use what we know, and that is the base measurement of the pyramid.

so we multiply 4.6cm by 9cm to get our area for the base.

4.6x9cm=41.4cm

then we work backwards.

82.8/41.4= 2cm

3 0
3 years ago
F(x)=−4x <br> 2<br> +5x<br> \text{Find }f(6)<br> Find f(6)
Vilka [71]

Answer:

-114

Step-by-step explanation:

f(x) = -4x^2 +5x

Let x = 6

f(6) = -4(6)^2 +5(6)

     = -4(36) +30

     - 144+30

   = -114

7 0
3 years ago
PLEASE HELP
kramer
The answer to this is $192
First you would divide 2400oz to 48oz then you would get that answer and multiply it by $3.84
6 0
4 years ago
Read 2 more answers
on friday the temperature was 82 f the temperature changed by -2 on saturday , and then it changed by 5 on sunday , what was the
Elanso [62]

Saturday the temperature we 2 degrees lees than Friday:-

82 - 2  = 80 degrees

Sunday's temperature = 80 + 5 = 85 (answer)

7 0
3 years ago
Other questions:
  • What is 100 is 1/10 of
    12·1 answer
  • What is 27.67 plus 79.8
    6·1 answer
  • What’s the answer to this?
    11·1 answer
  • What is the answer to this question
    8·2 answers
  • Look at the figure. If ∆LMC ≅ ∆BJK, then _____ ≅ ∆KB<br> A. BJ<br> B. CM<br> C. ML<br> D. CL
    14·2 answers
  • (Isosceles triangle) find x
    6·2 answers
  • Find the value of a?
    11·1 answer
  • 4. A lampshade is in the shape of a cone. The radius iš 7 inches and the height 9
    15·2 answers
  • Which equation has a greater rate of change than the rate shown in the graph
    14·1 answer
  • PLZ HELP! I will give brainliest!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!