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
Dahasolnce [82]
2 years ago
5

An Olympic swimmer can swim 50 meters in 21 seconds. How long would it take the swimmer to swim 800 meters if he kept up the sam

e pace?
Mathematics
1 answer:
ICE Princess25 [194]2 years ago
7 0

Answer:

It would take 336 seconds

Step-by-step explanation:

Set up as a proportion:

50 meters/21 seconds = 800 meters/x

Then we cross multiply to find the answer:

336 = x

You might be interested in
Only 4 b and c please
Artyom0805 [142]

Answer:

a) 2L + 2W = 42

b) L = 2W + 3

c) The system is :

2L + 2W = 42

L - 2W = 3

( add the two equations )

3L + (2w - 2w) = 45

3L = 45

L = 45/3

L = 15 ( Length )

L - 2W = 3

15 - 2W = 3

2W = 15 - 3

W = 12/2

W = 6

4 0
2 years ago
II<br>3<br>Find 6 X 915. Show your work.​
love history [14]

Answer:

5490

Step-by-step explanation:

you multiply every number by 6 and you will get the answer

4 0
3 years ago
Which ordered pair is a solution to the equation y=-2/5x+9
Vladimir79 [104]

Answer:

c

Step-by-step explanation:

i am not sure i but i think it is

6 0
3 years ago
A business has two loans totaling $50,000. One loan has a rate of 8% and the other has a rate of 12%. This year, the business ex
Debora [2.8K]

Answer:

the 8% loan has a principal of $37500

the 12% loan has a principal of $12500

Step-by-step explanation:

Let's start by writing the general  equation for the interest hwre I is the interest, P is the principal (in our case would be loan amounts), "r" is the interest rate in decimal form (in our case one would be 0.12, and the other one 0.08), and t is the time in years (in our case 1 year).

I=P*r*t

Then we write the interest equation coming from each loan at the end of this year (we call I1 the interest coming from the 12% loan and I2 the interest coming from the 8% one). Since we don't know the loan amounts (in fact those are what we need to find) we will name one "x" and the other "y":

I=P*r*t\\I1=x * 0.12*1\\I2=y*0.08*1

Next, we add these last two equations term by term, and replace the addition of both interests by $4500 as given in the information:

I1=x * 0.12*1\\I2=y*0.08*1\\I1+I2 = 0.12x+0.08y\\4500=0.12x+0.08y

This is our first equation in the variables x and y which are our unknowns.

Now we generate the second equation on x and y by writing in agebraic terms the other piece of information we have: "the total of the two loans is $50000. That is the addition of the principals x and y should equal $50000:

x+y=50000

We solve for y in this last equation and replace its form in terms of x in the equation of the interest, and solve for the unknown x:

y=50000-x\\4500 = 0.12x +0.08 y\\4500=0.12x+0.08(50000-x)\\4500=0.12x+4000-0.08x\\4500=0.12x-0.08x+4000\\4500=0.04x+4000\\4500-4000=0.04x\\500=0.04x\\x=\frac{500}{0.04} =12500

Therefore the amount of the loan at 12% is $12500

Now to find the amount of the second loan "y" we use the equation for the totals of the loans:

x+y=50000\\12500+y=50000\\y=50000-12500=37500

Therefore, the loan at 8% is $37500

5 0
3 years ago
In the simplest terms that is equivalent to 2 1/3
ycow [4]

Answer:

IRREGULAR TERM OF FRACTIONS

Step-by-step explanation:

2 1/3

= 7/3 ANSWER

5 0
2 years ago
Read 2 more answers
Other questions:
  • Please help me answer this question asap!
    9·2 answers
  • I need help finding my variable
    10·2 answers
  • What is the ratio 148 to 130 in simplest form
    15·1 answer
  • One relaxing attraction at the park is a ferry ride across the river. Visitors are picked up at point A and taken across to poin
    14·1 answer
  • What is the volume of the following rectangular prism?<br>​
    9·2 answers
  • Julia bought name tags for a party. Each name tag is 334 in. wide and 213 in. high.
    7·2 answers
  • How do find the measure of similar triangle
    13·1 answer
  • How many miles would he ride all together ?
    9·1 answer
  • Determine the domain of the function, and choose the correct interval and inequality notations,
    12·1 answer
  • What is 13x4=nx26 and tell me the answer
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!