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
GenaCL600 [577]
2 years ago
15

Maddie swims the hundred meter freestyle in 30 seconds what is her average speed in meters per minute​

Mathematics
1 answer:
Naily [24]2 years ago
3 0
Answer: 200 meters per minute

Explanation: we know that she can run 100 meters per 30 seconds. the question is asking in terms of minutes, however. we have to convert the seconds into minutes. How many minutes is 30 seconds? well, 60 seconds are in a minute so 30 seconds are in half a minute. 30 seconds = .5 minutes.

Now, we have to find how many meters she runs per minute. this means how many meters she runs in one minute. we create a proportion:

100 meters/ .5 minutes = x meters / 1 minute

we cross multiply to get 100 = .5x

then, we simplify by dividing each side by .5 which equals

200=x
You might be interested in
a rectangular prism measures 3 in by 8 in by 9 in. what is the side length of a cube with the same volume?
Novay_Z [31]

Answer:

6 in.

Step-by-step explanation:

Rectangular prism

V = lwh       l = 8   W = 3    h = 9

  = 8(3)(9)

  = 216

Cube

V = s^{3}   where s = length of side

216 = s^{3}

s = \sqrt[3]{216}  = 6

4 0
3 years ago
Jenny charges for delivering the cakes.
bezimeni [28]
£4 and 720p, 12 times 60p equals 720p
8 0
3 years ago
Jenny and Natalie are selling cheesecakes for a school fundraiser. Customers can buy chocolate cakes and vanilla cakes. Jenny so
IrinaVladis [17]

The cost of 1 chocolate cake is $ 6 and cost of 1 vanilla cake is $ 7

<em><u>Solution:</u></em>

Let "c" be the cost of 1 chocolate cake

Let "v" be the cost of 1 vanilla cake

<em><u>Jenny sold 14 chocolate cakes and 5 vanilla cakes for 119 dollars</u></em>

Therefore, we can frame a equation as:

14 x cost of 1 chocolate cake + 5 x cost of 1 vanilla cake = 119

14 \times c + 5 \times v=119

14c + 5v = 119 ------- eqn 1

<em><u>Natalie sold 10 chocolate cakes and 10 vanilla cakes for 130 dollars</u></em>

Therefore, we can frame a equation as:

10 x cost of 1 chocolate cake + 10 x cost of 1 vanilla cake = 130

10 \times c + 10 \times v = 130

10c + 10v = 130 -------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

Multiply eqn 1 by 2

28c + 10v = 238 ------ eqn 3

<em><u>Subtract eqn 2 from eqn 3</u></em>

28c + 10v = 238

10c + 10v = 130

( - ) --------------------------

18c = 108

c = 6

<em><u>Substitute c = 6 in eqn 1</u></em>

14(6) + 5v = 119

84 + 5v = 119

5v = 119 - 84

5v = 35

v = 7

Thus cost of 1 chocolate cake is $ 6 and cost of 1 vanilla cake is $ 7

8 0
2 years ago
At a coffee shop, Polly can choose to earn $12 per hour plus a starting bonus of $100 or she can choose to earn $16 per hour wit
vova2212 [387]

Answer:

For the first option 1h for the second option is 7h and she will earn the same which is 112$

Step-by-step explanation:

12 x 1 = 12 + 100 = 112

16 x 17 =112

5 0
2 years ago
What is the number 0.00000482 written in scientific notation?
Elena L [17]
Move the decimal so that there is one whole number.

0.00000482 => 4.82

We moved 6 units to the left so:

4.82 * 10^-6
3 0
3 years ago
Read 2 more answers
Other questions:
  • you need to mix 42 pounds of mortar. each pound of mortar mix requires 0.03 liters of water. how many liters of water do you nee
    6·1 answer
  • Which of the following statements are equivalent to the statement "price increased by 100%"?
    9·1 answer
  • An animal shelter recently held an adoption event and found homes for 48 of their shelter animals. If they found home for 80% of
    15·2 answers
  • Look at the table showing different prices for oranges.
    14·2 answers
  • A prism is completely filled with 1120 cubes that have Edge Length of 1/2 inc what is the volume of the prism
    6·1 answer
  • A shopper bought shoes marked 40$ the sales tax is 8% how much did the shopper pay in all
    10·1 answer
  • Find fg(x) <br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%202" id="TexFormula1" title="f(x
    12·1 answer
  • If a function f is increasing on (a,b) and decreasing (b,c), then what can be said about the local extremism of f on (a,c)?
    14·1 answer
  • Find m2ABC.<br> Ad<br> 37°<br> 21°<br> B<br> m/ABC =<br> C
    8·2 answers
  • Dialtion, reduction or enlargment. Explain and show work. Homework is due today!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!