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
Iteru [2.4K]
3 years ago
13

Rory is driving 584 miles to a family reunion. She will drive 300 miles by her self the first day.The second day, Rory and her c

ousin will share driving equally. How many miles will her cousin drive?Write an equation to solve.Use a variable for the unknowS
Mathematics
1 answer:
gogolik [260]3 years ago
5 0

Answer:

Total distance Rory drive = 300 +142 = 442 miles

and total distance her  cousin drive = 142 miles.

Step-by-step explanation:

Total distance traveled by Rory and her cousins = 584 miles

Distance drive by Rory herself first day = 300 miles

Distance left to travel = total distance - distance drive by Rory

                                     = ( 584-300 ) miles

                                     = 284 miles.

According to the question, The second day, Rory and her cousin will share driving equally.

Let the distance traveled by cousin is S miles, then, Rory also drive S miles.

⇒  S + S = 284

⇒ 2S = 284

⇒ S = 142

So they will divide the remaining distance of 284 miles among them equally that is they both drive 142 miles.

Total distance Rory drive = 300 +142 = 442 miles

and total distance her  cousin drive = 142 miles.





You might be interested in
What is the number two hundred seven thousand, four hundred sixty written in standard form?
Zinaida [17]

Answer:

207,460

Step-by-step explanation:

brainiest plz

5 0
3 years ago
Dhfnfnsngsdbnchfbmfnbmbmhfnc
finlep [7]
4/32 = x/100
answer: x = 12.5

3 0
3 years ago
Last one i hope (no pictures).
-BARSIC- [3]

Answer:

9

Step-by-step explanation:

RST = 90

90 - (22 + 41) = 27.

3x = 27

27/3 = 9

x = 9

8 0
3 years ago
8. If a runner’s power is 400 W as she runs, how much chemical energy does she convert into other forms in 10.0 minutes? E = P X
spin [16.1K]

Answer:

2400kJ

Step-by-step explanation:

Step one:

given data

power P= 400W

time = 10minutes

to seconds= 60*10 = 600 seconds

Required

the energy

Step two:

we know that Energy= power * time

E=P*t

E=400*600

E=240000

E=2400kJ

She converts 2400kJ into other forms

5 0
2 years ago
Two​ shooters, Rodney and​ Philip, practice at a shooting range. They fire rounds each at separate targets. The targets are mark
Sedaia [141]

Complete Question

Answer:

a

  SE  = 0.66}

b

-3.29 <  \mu_1 - \mu_2 <  -0.70  

Step-by-step explanation:

From the question we are told that

  The sample size is  n  = 60

   The first sample mean is  \= x _1  =  8

    The second sample mean is   \= x _2  =  10

    The first variance is  v_1 =  0.25

    The first variance is  v_2 =  0.55

Given that  the confidence level is 95% then the level of significance is 5% =  0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the first standard deviation is  

     \sigma_1 =  \sqrt{v_1}

=>   \sigma_1 =  \sqrt{0.25}

=>   \sigma_1 =  0.5

Generally the second standard deviation is

     \sigma_2 =  \sqrt{v_2}

=>   \sigma_2 =  \sqrt{0.55}

=>   \sigma_2 =  0.742    

Generally the first standard error is

     SE_1  =  \frac{\sigma_1}{\sqrt{n} }

      SE_1  =  \frac{0.5}{\sqrt{60} }

     SE_1  =  0.06

Generally the second standard error is

     SE_2  =  \frac{\sigma_2}{\sqrt{n} }

      SE_2  =  \frac{0.742}{\sqrt{60} }

     SE_2  =  0.09

Generally the standard error of the difference between their mean scores is mathematically represented as    

      SE  =  \sqrt{SE_1^2 + SE_2^2 }

=>     SE  =  \sqrt{0.06^2 +0.09^2 }

=>     SE  = 0.66}

Generally 95% confidence interval is mathematically represented as  

      (\= x_1 -\= x_2) -(Z_{\frac{\alpha }{2} } *  SE) <  \mu_1 - \mu_2 <  (\= x_1 -\= x_2) +(Z_{\frac{\alpha }{2} } *  SE)

=> (8 -10) -(1.96 *  0.66) <  \mu_1 - \mu_2 <  (8-10) +(Z_{\frac{\alpha }{2} } *  0.66)  

=>  -3.29 <  \mu_1 - \mu_2 <  -0.70  

 

5 0
3 years ago
Other questions:
  • Slope of the line that passes through points (-3,4) and (5,-1)
    14·1 answer
  • Which of the following are polynomial functions?check all that apply<br>(answers in picture)
    6·2 answers
  • A National Hockey League rink is 115 feet longer than it is wide. If the perimeter of the rink is 570 feet, find the dimensions
    9·1 answer
  • Consider Akelia’s sequence 5, 8, 11, 14, 17, ….
    9·1 answer
  • What is 0.009% of 5000? Round to the nearest hundredth (if necessary).
    8·2 answers
  • Find the value of x in The parallelogram.
    15·2 answers
  • B) A car drives at a speed of 90kmth for 2 hours and 20 minutes<br> How far does the car onve?
    14·2 answers
  • Will give correct answer brainlyist
    9·2 answers
  • What is the Awnser to this?
    7·1 answer
  • There are 26 prize tickets in a bowl, labeled A to Z. What is the probability that a prize ticket with a vowel will be chosen, n
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!