Mathematics High School

4. Lin runs 4 laps around a track in 9 minutes at a constant speed.
A. How many minutes per lap is that? (1 point)
B. How many laps per minute is that? (1 point)
C. How long would it take Lin to run 15 laps at the same rate? (1 point)

Answers

Answer 1

Answer:

Number of minutes per lap = 2.25 minute

Number of lap per minute = 0.444 lap (Approx)

Time taken for 15 lap = 33.75 minutes

Step-by-step explanation:

Given:

Number of laps = 4

Time taken = 9 min

Computation:

Number of minutes per lap = 9 / 4

Number of minutes per lap = 2.25 minute

Number of lap per minute = 4 / 9

Number of lap per minute = 0.444 lap (Approx)

Time taken for 15 lap = 15 x 2.25

Time taken for 15 lap = 33.75 minutes

Related Questions

A rectangle with an are of 40ft*2 is dilated by a scale factor of 3.What is the area of the image?​

Answers

Answer:

120

Step-by-step explanation:

You can tell if the value of a function for a certain interval is positive by looking at its graph. If the value is postitive that part of the graph will:

Answers

Answer:

will be negative

Step-by-step explanation:

☜(ﾟヮﾟ☜)

find z and x

please help i’ll mark the first one or whoever right brainliest

Answers

line o is a total of 180 so 180-60 is 120.. (5x+10) should be set equal to 120 so X WILL EQUAL 22 (5(22)+10) would be 120 and z is a vertical angle so it should be 120 as well since they are always equal. correct me if i’m wrong please

Find the unit rate for 1/2 mile in 3/10 hour

Answers

Answer:

1 mile for every 0.6 hours

Step-by-step explanation:

0.5 x 2 = 1

3/10 x 2 = 6/10

2 miles = 1.2 hours

A bus travels 20 km in 30 minutes. What is the average speed of the bus in kilometers per hour?

Answers

Answer:

40

Step-by-step explanation:

Answer:

40 kilometers per hour

Step-by-step explanation:

Since it is 20km and 30m, you double both values to get 40km and 60m

You paint 13 of a wall in 14 hours. At that rate, how long will it take you to paint one wall?

Answers

ou paint 1/3 of a wall in 1/4 hour. At that rate, how long will it take you to paint one wall? rate = (area/time)
------
rate = (1/3)/(1/4) = 4/3 job/hr
-----
time for job = 3/4 hr/job = 45 minutes to do the whole job.

If ∆QRS ≈ ∆XYZ, then RS is congruent to?

A. XY
B. YZ
C. XZ
D. YX

Answers

Answer:

yz

Step-by-step explanation:

........

........

answer is YZ

. XYZ has vertices X (–5, 2), Y (0, –4), and Z (3, 3). What are the vertices of the image of X’Y’Z’ under the translation (x, y) → (x + 7, y – 5) ?

Answers

Answer:

X' = (2, -3)

Y' = (7, -9)

Z' = (10, -2)

Step-by-step explanation:

to find the translation of each point substitute the x and y with the the numbers

eg; X ( -5,2) the x is 5 and the y is 2

so -5 + 7 = 2 (the x value)

2 - 5 = -3 ( the y value)

Brianna works at an electronics store as a salesperson. Brianna earns a 4% commission on the total dollar amount of all phone sales she makes, and earns a 4% commission on all computer sales. How much money would Brianna earn in commission on a day that she sold $1900 worth of phones and $1600 worth of computers? How much money would Brianna earn in commission on a day that she sold $xx worth of phones and $yy worth of computers?

Answers

Answer:

P(x)=0.025x+100

Step-by-step explanation:

The 0.025 is 2.5% as a decimal. Then, the +100 is for the base pay amount Hailey receives.

Answer:

Lacy would earn a commission of $104.

Lacy would earn 0.06x dollars on phones sale and 0.02y dollars on computer sales.

Step-by-step explanation:

Hopefully this helped, if not HMU and I will try my best to get u a better aswer!

Have a great day! :)

And if u need help HMU and I got you, no points needed:)

Andf thanks  for the 25 points! :D

Isaac’s family took a cab to a concert. The bill came to a total of $43.50. The family wants to tip the driver at least 20%. Which tip amounts would be sufficient? Select all that apply.

$7
$8
$9
$10
$11

Answers

Answer:

The option d is the correct answer

to find a percentage of something we were taught this method

%% x
—— • ——
100 total price

you then want to multiply the total price by the percentage and then divide by 100

so in this case

20 x
—— • ——
100 $43.50

20•43.50=870

870/100= 8.7

so i believe 9,10,11 would all be correct.
hope this helps!

Cuánto es la respuesta de 3n+n?

Answers

La respuesta es 4n.

what is the GCF of 45 and 60?

Answers

Answer:

The GCF of 45 and 60 is 15.

Step-by-step explanation:

First let us find the factors of 45 and 60.

[tex]\left[\begin{array}{ccc}&45&\\15&*&3\\5*3&&\end{array}\right][/tex]             [tex]\left[\begin{array}{ccc}&60&\\15&*&4\\5*3&&2*2\end{array}\right][/tex]

Based on this, you can tell that they both have the number 3 and the number 15 in their factors.

15 > 3

The GCF of 45 and 60 is 15.

PLEASE PLEASE HELP I WILL GIVE EXTRA POINTS AND BRAINALIST FIRST PERSON TO ANSWER

Answers

Answer:

A.

Step-by-step explanation:

j=39 so 39x5=195

The answer is going to be a

Next question? Does anybody know it?

Answers

Answer:

0

Step-by-step explanation:

Answer:

the answer is undefined.

Step-by-step explanation:

-9-3

5-5

-12⇒

0⇔          its undefined.don´t forget to brainllest.

ON A TEST PLZ ANSWER This equation represents what type of function?
y=1/2x^3+ 5x
A linear
B quadratic
C exponential
D cubic

Answers

Linear equation is the answer

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

Answers

Answer:

5 per hour

Step-by-step explanation:

Answer:

Step-by-step explanation:

120 customers / 8 hours= 15 customers per hour

Can you please help?​

Answers

Answer:

v

Step-by-step explanation:

v would be your answer:)

(8 - 11) x 1-11 + 7) = ?
A. -54
B. -12
C. 12
D. 54
E. 76

Answers

Answer:

its B.

Step-by-step explanation:

hope this helps     ~(￣▽￣)~*

Answer:

B. -12

Step-by-step explanation:

(8-11)*l -11 +7 l =

Solve inside the parentheses

8-11 = -3

Solve inside the absolute value signs

-11+7 = -4

Take the absolute value of - 4

l-4l = 4

Multiply -3 and 4

-3*4 = -12

So the answer is B. -12

A jar contains 18.50 in dimes and quarters. there are 110 coins in the jar. find the number of quarters and dimes in the jar.

Answers

Answer:

I believe there would be 50 quarters and 60 dimes

Step-by-step explanation:

marking brainliest to whoever gives me the correct answer and a good explanation

Answers

Answer:

C

Step-by-step explanation:

180-130 = 50

50 + 80 + x = 180

80 + x = 180 -50

80 + x = 130

A sum of 2440 is made up of N100 and N10 notes. There are 6 times as many N100 notes as
there are N10 notes. Find the number of N100 notes.​

Answers

The number of N 100 notes in the 2440 is 24 notes

What is proportion?

A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls. 0.25 are boys (by dividing 1 by 4.

Relating the example with the question , for every 6, N100 notes there is 1, N10 notes . This means the ratio of N100 note to N10 note is 6:1

Therefore for every N600 there will be 10N

following the trend, for every N1200 there will be N20. for every N1800 there will be N30 and for every N2400 there will be N40

The addition of 2400+40= 2440

This means that the sum of N100 is 2400

Therefore the number of N100 is 2400/100= 24 notes

learn more about proportion from

https://brainly.com/question/19994681

#SPJ1

WILL MARK BRAINLIEST!!Find the solution of the system of equations.

2x – 9y = 38
4x + 5y = –16

Answers

Answer:

answer 9x

Step-by-step explanation:

X=19
Y=-38/9 or 4.2

That is solution

Which equation matches the graph?
у
4
2
х
4
12
o
2
4
-21

Answers

Answer:21

Step-by-step explanation:

Answer:

BruV

Step-by-step explanation:

what do you mean???

Kelly wrote two expressions on the board. If only one of them was an equation,
which of the following must be true?

Answers

Answer:

give me a minute i will answer

Step-by-step explanation:

Sam used the following method to find the prime factorization of 54:

​

Answers

what are the primes tho and i’ll gladly help

Answer:

what are the choices

Step-by-step explanation:

1. Determine whether the following numbers could be the sides of a right triangle. Show your work.
a.
7, 25, 19
b.
17, 15, 8

Answers

Answer:

B 17,15,8

Step-by-step explanation:

8sqrd+15sqrd=17sqrd

64+225=289

If the radius of a circle is cut in half, what is the scale factor needed to adjust the area of the original circle to the smaller circle?

Answers

When the radius is halved, your area will be divided by 4. If you think about it, radius is already half of the diameter so your area is already divided by 2, so if you cut the radius is half again, your area will be divided by 4.

Michelle bought some pinwheels for a dollar and paid in dimes. How many dimes did she use. Explain

Answers

Answer: 10

Step-by-step explanation:

There are ten cents in a dime, you multiply 10 times 10 and that will give you 100. hope this makes sense

She used 10 dimes cause 10 dimes equal a dollar

A recipe uses 2 parts of sugar for every 3 parts of flour. You use 8 cups of sugar. Use the ratio table to find how many cups of flour you use.
QUICK PLEASE

Answers

Answer:

12

Step-by-step explanation:

What number should go in the space?
Multiplying by 1.45 is the same as increasing by _____%.

Answers

Answer:

you would way nothing

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

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