Plz help me Jen can jump rope 80 times in 60 seconds. If she jumps at a constant ratio of seconds to jumps, how many jumps can she make in 15 seconds?

Answers

Answer 1

Answer:

The answer is 4

Step-by-step explanation:

You just divide 80 by 15.

Answer 2

She can jump rope 20 times in 15 seconds

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

What are Arithmetic operations?

Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.

The operator that performs the arithmetic operations is called the arithmetic operator.

* Multiplication operation: Multiplies values on either side of the operator

For example 4*2 = 8

/ Division operation: Divides left-hand operand by right-hand operand

For example 4/2 = 2

Given that Jen can jump rope 80 times in 60 seconds.

We have to determine the number of jumps can she make in 15 seconds.

Let the number of jumps would be x she can make in 15 seconds

Since she jumps at a constant ratio of seconds to jumps

So according to proportionality,

⇒ 80/60 = x/15

⇒ x = 15(80/60)

⇒ x = 20

Hence, she can jump rope 20 times in 15 seconds.

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Related Questions

If a ship had 1500 boars, what is the age of captain??​

Answers

Answer:

At least 24 (if started around 19) or 23 (if started internship around 18)

[ results are only if the boars are dead and the ship's capacity is closest to the TEU ]

Order the following rational numbers from least to greatest.

1.3 5/8
\
2.3 2/5

3.3.30

4.3.5

5.3 1/3

Answers

Answer:

1.3 5/8 ,4.3.5 ,2.3 2/5, 5.3 1/3

Step-by-step explanation:

What’s the measurement of

Answers

Step-by-step explanation:

4x and 6x sit on a straight line therefore must equal to 180°

4x+6x = 180° (∠'s on str. line)

10x = 180

x= 180/10

x= 18

Then we need to find ∠UYV

∠UYV = 4x

=4(18)

=72°

So ∠UYV = 72°

Use the vertical method to multiply (4a^3 - 2a + 3a^2 + 1) (4a3−2a+3a2+1) and (3 - 2a + a^2). (3−2a+a2). What would be the value of D?

Answers

Answer: C 3a^4

Step-by-step explanation:

I just took the test

The multiplication operation to multiply the equation (4a^3 - 2a + 3a^2 + 1) and (3 - 2a + a^2) with vertical method is done and the value of D obtained is 3a⁴.

What is vertical method to multiply?

The vertical method to multiply is one of the simple method to perform multiplication operation.

In this method, the two terms which need to be multiply is kept one below the other and each element of first is multiplied with the other term.

The equations given in the problem are, (4a^3 - 2a + 3a^2 + 1) (4a3−2a+3a2+1) and (3 - 2a + a^2). (3−2a+a2). Arrange them and write in vertical manner to multiply.

               [tex]4a^3+3a^2-2a+1[/tex]

                     X   [tex]a^2-2a+3[/tex]

______________________

+              [tex]12a^2+9a^3-6a+3[/tex]

   [tex]-8a^4-6a^3+4a^2-2a[/tex]

[tex]4a^5+3a^4-2a^3+a^2[/tex]

_______________________

[tex]4a^5-5a^4+4a^3+14a^2-8a+3[/tex]

This is the complete multiplication of given equation with vertical method. Comparing with the sum shown in figure we get,

[tex]A=4a^2\\B=4a^3\\C=3\\D=3a^4[/tex]

Thus, the multiplication operation to multiply the equation (4a^3 - 2a + 3a^2 + 1) and (3 - 2a + a^2) with vertical method is done and the value of D obtained is 3a⁴.

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Write 33 kg as a fraction of 4 tonnes.

Answers

Answer:

jsjjrjjsndndjjdjdjfjfjdjdjeoowke

The fraction of 33 kg as a fraction of 4 tonnes is 33/4000.

What is Unit Conversion?

The same property is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other length unit instead of miles.

For example, inches, centimeters, and miles are all measures of distance.

Given:

Amount= 33 Kg

We have to convert Kg into Tones

We know, 1 tonne= 1000 Kg

So,4 tonee = 4 x 1000

                = 4000 Kg

Thus, 33 kg as a fraction of 4 tonnes.

= 33/4000

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Please help me out and make sure to show your work! thanks

Answers

Answer:

1075 sq ft

Step-by-step explanation:

There are a few ways to do this but I am only going to show one.

35 x (25 + 8) - (5 x 8 + 8 x 5) = 1155 - 80 = 1075

I need help please and thank you! :)

Answers

Answer:

Sorry I’m only in 8th grade and can’t figure it out

Step-by-step explanation:

Find the area of the composite figure below.

Answers

Answer:

63 cm^2.

Step-by-step explanation:

Total Area = area rectangle + area of triangle on right + area of triangle at the top.

= 6 * 8 + 1/2 * 1 * 6 + 1/2 * 8 * 3

= 48 + 3 + 12

= 63 cm^2.


How do you know when you have a difference of perfect squares?

Answers

In general, a variable to any even power is a perfect square.

So for example, x² is a perfect square and so is y¹⁴.

A common made by students is not in factoring the difference of two squares, but just failing to recognise that the difference of two squares exist.

It will also help to review your perfect squares

for the numbers between 1 and 16.

Which term is not a like term?
A.3x
B.4y
C.7x
D.x

Answers

Answer: B) 4y

Step by step explanation

Solve for x in the diagram * 10 POINTS HELP*

Answers

Answer:x+42+3x = 90

Combine like terms:

3x+x = 4x

42+4x = 90

Subtract 42 to both sides

90-42 = 48

Divide 4 by 48

48/4 = 12

X = 12

100% right

Step-by-step explanation:

In a circle, if you connect the edge of diameter and a point on the circumference, it forms a right triangle.



Is the above statement always true? sometimes true? or always false? Show your answer and support it by reasoning. (can use a picture)

Answers

Answer:

always true

Step-by-step explanation:

An economist tracking a country’s imports and exports finds that one year, the country’s imports total an equivalent of $64,821,824, and its exports total an equivalent of $54,058,726. What is this country’s balance of trade for that year?
a.
trade deficit of $10,763,098
b.
trade deficit of $118,880,550
c.
trade surplus of $10,763,098
d.
trade surplus of $118,880,550

Answers

Answer:

A. Trade deficit of $10,763,098

Step-by-step explanation:

A trade deficit occurs when imports exceed the exports.A trade surplus occurs is when exports exceed the imports.

In the given case we have trade deficit of:

$64821824 - $54058726 = $10763098

Correct choice is A

Answer:

a. trade deficit of $10,763,098

Step-by-step explanation:

In ΔVWX, x = 41 cm, v = 17 cm and ∠W=134°. Find the length of w, to the nearest centimeter.

Answers

Answer:

54

Step-by-step explanation:

deltamath gave me the answer

The length of w is 54 cm.

What is Trigonometry?

One of the six mathematical functions used to express the side ratios of right triangles, the trigonometric function includes the sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc). The figure shows these six trigonometric functions in respect to a right triangle. Surveying, engineering, and navigation issues where one of a right triangle's acute angles and the length of a side are known but the lengths of the other sides need to be determined can be solved with ease using trigonometry.

As per the given data:

x = 41 cm

v = 17 cm

∠W = 134°

To find the length of w:

From the cosine law:  [tex]cos(W) = \frac{x^2 + v^2 - w^2}{2xv}[/tex]

[tex]w = \sqrt{x^2 + v^2 - 2xvcos(W)}\\w = \sqrt{(41)^2 + (17)^2 - 2(41)(17)cos(W)}\\w = \sqrt{1681 + 289 + 968.35} = \sqrt{2938.35}\\w = 54 \:cm[/tex]

Hence, the length of w is 54 cm.

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What is the slope between the points (-2, -4) and (3, 4)?

Answers

Answer:

m= y2_ y1÷ x2-x1= 4-(-4) ÷ 3-(-2) = 8 ÷ 5

Find the difference. Write you answer in simplest form.
9/10 - 4/10

Answers

Answer:

1/2

Step-by-step explanation:

hope it helps :)

A company has to make a large number of boxes.
The company has 8 machines.
All the machines work at the same rate.
When all the machines are working, they can make all the boxes in 9 days.
The table gives the number of machines working each day.
day 1
day 2
day 3
all other days
Number of machines working
4
5
7
8
Work out the total number of days taken to make all the boxes.
Your final line must say, It takes ... days to make all the boxes

Answers

Answer:

It takes 10 days to make all the boxes

Step-by-step explanation:

9*8=72

72-(4+5+7)=56

56/8=7

7+3=10

It takes 10 days to make all the boxes

Help this is due tonight.
What is 4x + 3y = -20 and x - 3y = -20
PLZ HELP

Answers

Answer: y= - 4/3 x - 20/3

How likely is it that the spinner will land on a green space?

Answers

Answer:

1/5

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

what's four minus 1 third​

Answers

Answer:

3 2/3

Step-by-step explanation:

hope this helps

Answer:

3.6 is the answer

Step-by-step explanation:

Brainliest?

If the dimensions of a cylinder are doubled he suface area will​

Answers

they will quadruple !!

It will be doubled, Because the surface area is getting bigger as the dimensions get bigger.

HELP!!!!!!!!!!!!!!!!

Answers

I think it’s A but if it’s not then try c

Answer:

C. 390 cm²

Step-by-step explanation:

Area of Rectangle: l•w

Area of Triangle: 1/2bh

Rectangle:

20 cm • 15 cm = 300 cm²

Triangle:

1/2(12)(15)

1/2(180)

90 cm²

Entire Shape:

300 cm² + 90 cm² = 390 cm²

Please help me!!!!!!!!!!!!!

Answers

Answer:

96 ft

Step-by-step explanation:

do 10 * 8 + 8 * 2

~~~~~~

what is x + 15 > 3?

please hurry i need this for a math test and I will give a lot of points

Answers

Answer:

hmm

Step-by-step explanation:

Answer:

x>-12

Step-by-step explanation:

x + 15 > 3 (Group like terms)

x>3-15

x>-12

solvex

(3 x - 9)(3x - 1) = 0

Answers

Answer:

(3x-9)(3x-1)=0

3x-9=0

3x= 9

x=9/3

x= 3

OR

3x-1=0

3x=1

x=1/3


Is the figure an example of parallel lines?

Yes, the lines intersect.
Yes, the lines do not intersect.
No, the lines intersect.
No, the lines do not intersect.

Answers

Parallel lines are a pair of lines that do not intersect

Therefore this is not an example of parallel lines because the lines intersect

The answer is C

Answer:

No,the lines intersect

Katy buys 2 DVDs every 2 weeks. How many DVDs will she buy in 14 weeks?
A. 28
B. 4
C. 56
D. 14

Answers

D. 14

Hope this helps :P
I think the correct answer is D.14

Help and please make sure it’s right :)

Answers

Answer:

11

Step-by-step explanation:

7x + 8 = 6x + 19 (alternate angles)

7x - 6x = 19 - 8

x = 11

x=11 is the correct answer

Hannah put $2,000 in a savings
account. After 2 years she earned
$180 in simple interest. What was her
interest rate?

Answers

Answer:2000/180=11.11 p

Step-by-step explanation:

mark brainliest

Ramon paid a flat fee of $269.50 for a year's worth of vet visits for his 4 cats. He made 14 visits during the year. What was the average cost per vet visit?

Answers

Answer:

The average cost per vet visit was $19.25.

Step-by-step explanation:

From the information given, you can find the average cost per visit by dividing the total amount paid for a year's worth of vet visits by the number of visits:

269.50/14= $19.25

According to this, the answer is that the average cost per vet visit was $19.25.

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