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
Step2247 [10]
3 years ago
9

. Jordyn can swim 4/5 mile in 1/3 hour. How far can she swim in 1 hour?

Mathematics
2 answers:
Blizzard [7]3 years ago
4 0

Answer:

2.4 miles

Step-by-step explanation:

This is a simple ratio problem.

Jordyn swims 4/5 mile in 1/3rd hour. So how many miles will they go in 1 hour? Let that be x:

That is 12/5 miles or 2  2/5 miles

In decimal, that's 2.4 miles

AlexFokin [52]3 years ago
4 0

Answer:

fraction: 2 2/5 miles

decimal: 2.4 miles

Step-by-step explanation:

4/5*3=

12/5

You might be interested in
Which of the following is an equation of the line in the graph?
zlopas [31]
<h3>Answer:</h3>

B. 3x +y = 4

<h3>Step-by-step explanation:</h3>

It is perhaps easiest to simply try the equations to see which one works.

For x=0, there are two different kinds of answers:

... A and C: -y = 4

... B and D: y = 4

Since we know y=4 when x=0 (from the point (0, 4)), we can eliminate choices A and C.

___

Using the point (1, 1), you can try choices B and D to see which works:

... B: 3·1 +1 = 4 . . . . true (put 1 where x and y are in the equation)

... D: -3·1 +1 = -2 = 4 . . . . false

The appropriate choice is the equation of B: 3x +y = 4.

_____

<em>Derive the equation from the given points</em>

There are several ways you can derive the equation. Since you have the y-intercept (the point with x=0), you can use the slope-intercept form to start.

The slope (m) is ...

... m = (change in y)/(change in x) = (4 -1)/(0 -1)

... m = -3

We know the y-intercept (b) is 4, so the slope-intercept form of the equation is ...

... y = mx +b

... y = -3x +4

Adding 3x puts this in standard form:

... 3x +y = 4

3 0
3 years ago
How to solve for x and y?
BlackZzzverrR [31]
(2x-y)+(3y-x) = 2y+X = 25
25 = 2:1 = 2Y:X
25/3 = 25/3
25/3 * 2 = 50/3 = 2y


x = 25/3
y = 25/3

Hope this helps! :)
4 0
3 years ago
Customers at a gas station pay with a credit card (A), debit card (B), or cash (C). Assume that successive customers make indepe
Maurinko [17]

Answer:

Mean = 20

Variance = 16

Step-by-step explanation:

Solution:-

- Let X be the number of customers paying with a debit card.  X has the binomial distribution with n = 100 trials and success probability p = 0.2  

- In general, if X has the binomial distribution with (n) trials and a success probability of (p) then:

                 P[X = x] = n!/(x!(n-x)!) * p^x * (1-p)^(n-x)

                 for values of x = 0, 1, 2, ..., n  

                 P[X = x] = 0 for any other value of x.

- The probability mass function is derived by looking at the number of combination of x objects chosen from n objects and then a total of x success and n - x failures.  

- Or, in other words, the binomial is the sum of n independent and identically distributed Bernoulli trials.

                  X ~ Binomial( n = 100 , p = 0.2 )

- The mean of the binomial distribution is n * p = 20  

- The variance of the binomial distribution is n * p * (1 - p) = 16  

7 0
3 years ago
AB is the perpendicular bisector of XY. Point P is the midpoint of XY. Which of the following are true?
Sonbull [250]
Hi - if you could provide a diagram, i could definitely help you!
8 0
3 years ago
Two numbers are of the ratio 3:5. If their difference is 18, find the numbers.
lozanna [386]
Est Answer: say the numbers<span> are x and y......and y being the bigger </span>number<span> ... </span>If<span> the </span>ratio<span> is 5:3, then </span>difference<span> between </span>ratio<span> = 5-3 = 2 ... Substituting this x = 5y/3 in equation x-y=</span>18<span> we </span>get<span> ... therefore x = 5 * 27/</span>3 = 5<span>*9 = 45 .... One </span>number<span> is 5 more than another. </span>their<span> sum is 53 what are the </span>two numbers<span>?</span>
5 0
3 years ago
Other questions:
  • Ionic bonds occur between?
    12·1 answer
  • an electronics manufacturer has 140 capacitors, and the same number of capacitors is needed for each circuit board made. the man
    13·1 answer
  • The equation h(t)=−16t2+120t+65 gives the height of a firework, in feet, t seconds after it is launched from a platform.
    10·2 answers
  • Gabrielle's age is three times Mikhail's age. The sum of their ages is 56, what is their age?
    7·2 answers
  • How do I set up the problem?
    15·1 answer
  • Write an inequality , the sum of a number and 4 is less than 6
    12·1 answer
  • Chemical reactions occur around us every day. Combustion releases the carbon stored in fossil fuels (eg. coal, ol, natural gases
    10·2 answers
  • PLEASE HELP ME WITH THIS!!!!!!<br>​
    14·1 answer
  • The tangent of the curve f(t) =2+nt+mt^2 at point (1,1/2) is parallel to the normal g(t)= t^2+6t+13(-2,2), calculate the values
    12·1 answer
  • Please help!!! Which of the following expand (x + y)^5 using Pascal’s Triangle?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!