Sarah jumps rope to keep in shape. she jumps and average of 20 times in 15 sec. which of these describes her jump rate

60 min per jump

80 jumps per min

80 min per jump

60 jumps per min ​

Answers

Answer 1

Answer:

80 jumps per minute

Step-by-step explanation:

15 seconds is 1/4 of a minute, so to find out how many jumps she does in a minute, we multiply how many jumps she does in 15 seconds (20) by 4

20 x 4 = 80

So Sarah jumps 80 times per minute


Related Questions

Quizizz help please brainiest GUARANTEED even if wrong

Answers

Answer:

its dark blue

Step-by-step explanation: im sure if im wrong im sorry

Answer:

yellow

Step-by-step explanation:

How would you factor this 2x^3 + x^2 + 5x + 6. The factored form should not have any radicals or imaginary numbers.

Answers

Answer:

(x+1)(2x2−x+6)

Step-by-step explanation:

Answer correctly pls

Answers

All real numbers. All numbers would give you an answer

Answer:

domain is All real numbers greater than 0

Molly scored a total of 24 points in the basketball
game, and she scored x points in the second half of
the game. Write an expression to determine the
number of points she scored in the first half of the
game Then, find the number of points she scored in
the first half of the game if she scored 20 points in
the second half of the game.

Answers

Answer:

24-x=y (number of points scored in the first half)

if x equals 20, then we can rewrite the equation to

24-20=y

4=y

Jessica has saved $50. She will add $25 to her savings each week. Ron has saved $40 and will add $25 to his savings each week.



How much will each person have saved after 5 weeks?

Answers

Answer:

Jessica will have saved $175, and Ron will have saved $165.

Step-by-step explanation:

Jessica starts out with $50. She adds $25 each week, and it's asking how much money she would have in 5 weeks. So, you multiply $25 by 5 to get $125. Then, you add $50 to that to get $175. Same thing for Ron. Multiply $25 by 5 to get $125, but this time add $40 to it to get $165.

Answer:

Jessica- $175

Ron- $165

Step-by-step explanation:

Jessica starts with $50 so put that aside and then it says that she adds $25 EVERY WEEK so how much is she going to have in 5 weeks? 5 x $25 is $125 and now add the $50 which will equal $175

In Ron is the same thing but rather than adding $50 add $40 and it will equal $165

If the Area of Parallelogram KLMN is 35 squared units, what is the Area of Triangle KLN?

Answers

17.5 squared units is the correct answer!This parallelogram is made out of two equal triangles. Just divide by two to figure out the area of one triangle.35 ÷ 2 = 17.5Please let me know if I am wrong.

ANSWER MY QUESTION AND ILL ANSWER YOUR QUESTIONS
Which property of equality is used to solve –9.5 = x/1.5?
CHOICES :
1. distributive
2.subtraction
3.addition
4.multiplication

Answers

Step-by-step explanation:

it is not distributive because distributive is distributing a certain number into parentheses or if you have an exponent that would be distributing. it is also not subtraction. i am really sorry i dont know the full answer but i wanted to help as much as i possibly could i felt sad just scrolling by. i hope it helps you have a 50 50 now so i hope this helps

Find the 20th term of the sequence.

1600, 1200, 900, ...

Answers

First approach :

The above series can be seen as

1600 , (1600–400) 1200, (1200–300) 900 .

So we see that the values are getting decreased by 400,300 respectively.

Hence the next term in the sequence will be 900–200 = 700.

Other approach could be :

A geometric progression with ratio as 3/4.

1600*(3/4) = 1200

1200*(3/4) = 900

900*(3/4) = 675

Taking the above two approaches in mind,the two possible answers could be 700 or 675

Um- here ya go

The 20th term of the sequence.

1600, 1200, 900, ..., is 6.76.

What is a geometric sequence?

A unique kind of sequence called a geometric sequence has a constant ratio between every two succeeding terms. This ratio is regarded as one of the geometric sequence's common ratios.

aₙ=a₁(r)ⁿ⁻¹

Given:

A geometric sequence,

1600, 1200, 900, ...

To find the common ratio:

take the ratio of successive terms

r = The value of the second term / the value of the first term

r = 1200/1600 = 0.75.

The explicit formula of a geometric sequence is,

aₙ=a₁(r)ⁿ⁻¹

aₙ= 1600(0.75)ⁿ⁻¹

a₂₀ = 1600(0.75)¹⁹

a₂₀ = 6.76

Therefore, the 20th term is 6.76.

To learn more about the geometric sequence;

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#SPJ6

PLS PLS PLS PLS PLS HELP I WILL GIVE BRAINLIEST

Answers

Answer:

I wont give you the answers, but i will show you how

Step-by-step explanation:

add all the numbers together and then when you want to find a probability make them fractions

for example:

P(blue eyes): 12/80

then simplify the fractions

I need help pls pls pls pls

Answers

Answer:

9(w+8)  factor 9

Step-by-step explanation:

factor expression

9w+72  divide both side by 9

9/9w+72/9

w+8

Answer:

9 (w + 8)

I'm sorry I can't explain it but here's the answer

An aircraft is fying at a constant altitude with
a constant speed of 600 miles per hour. An antiaircraft
missile is fired on a straight line perpendicular to the flight path of the aircraft so that it will
hit the aircraft at a point P (see the accompanying figure). At the instant the aircraft is 2 mi
from the impact point P the missile is 4 miles from P and flying at 1200 miles per hour. At that instant.
how rapidly is the distance between inissile and aircraft decreasing?

Answers

An aircraft is fying at a constant altitude with
a constant speed of 600 miles per hour. An antiaircraft
missile is fired on a straight line perpendicular to the flight path of the aircraft so that it will
hit the aircraft at a point P (see the accompanying figure). At the instant the aircraft is 2 mi
from the impact point P the missile is 4 miles from P and flying at 1200 miles per hour. At that instant.
how rapidly is the distance between inissile and aircraft decreasing?

The perimeter of a rhombus with one side equal to 7mm

Answers

Answer:

28 mm

Step-by-step explanation:

All sides of a rhombus are equal in length and there are 4 sides so do 7 * 4 = 28mm.

Answer:

Perimeter of Rhombus: 28mm

Step-by-step explanation:

If one side of a Rhombus is 7mm, then its perimeter is 28 because all sides of a Rhombus is equal.

=> Perimeter of Rhombus: 7 x 4=> Perimeter of Rhombus: 28mm

Hoped this helped.

b.
3n+l -3n+2
Simplify:
3n+3 + 3n+4

Answers

Answer:

Simplified:  6n+7

Explanation:

Combine like terms

(3n+3n)=6n

(3+4)=7

4 questions answer them by number them down try show you solved plzzzzz
1 -5.2 + f =26.31
2 3(r+4)-6r = -9(-3)
3 -8d+ 14 +d= -119
4 -5h > -265

Answers

31.51

r=−5

d=19

h<53

Step-by-step explanation:

5+5=10+6381246213692696926195\55+22

Answers

You can’t answer this-

can someone help pls

Answers

Answer:

A. parallelogram

Step-by-step explanation:

What is the y intercept

Answers

Answer:

-2

Step-by-step explanation:

line crosses the y- coordinate (0,-2)

Solve each equation by completing the square.
n^2 – 2n – 48 = -2​

Answers

Answer:

n=1+√47 or n=1−√47

Step-by-step explanation:

Let's solve your equation step-by-step.

n2−2n−48=−2

Step 1: Subtract -2 from both sides.

n2−2n−48−(−2)=−2−(−2)

n2−2n−46=0

For this equation: a=1, b=-2, c=-46

1n2+−2n+−46=0

Step 2: Use quadratic formula with a=1, b=-2, c=-46.

n=

−b±√b2−4ac

2a

n=

−(−2)±√(−2)2−4(1)(−46)

2(1)

n=

2±√188

2

n=1+√47 or n=1−√47

-Bacon

Indicate whether there is exactly one solution, infinitely many solutions, or no solution to the equation shown.
2x - 4 = 2(x - 2)

Answers

Answer:

Infinitely many solution

Step-by-step explanation:

Simplify

2x - 4 = 2x - 4

Lets see:

if we put 1:

2 - 4 = 2 - 4

-2 = -2

Now lets try another number : 2

4 - 4 = 4 - 4

0 = 0

So we can say that there is more than one solution

this cancels out single solution and no solution

There are infinitely many solutions to the given algebraic expression 2x - 4 = 2(x - 2).

The algebraic expression is an expression that is composed of variables and their arithmetic operations.

From the given parameters

2x - 4 = 2(x - 2)

Open brackets

2x - 4 = 2x - 4

Since we are having the same algebraic expression on both sides;

Then, we won't be able to get exactly one solution but an infinite number of solutions.

This is because any number that is being substituted for the value of x will always give a different solution.

Learn more about algebraic expression here:

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Find the slope of the line. Explain how you found your answer.

Answers

Answer: slope = 10/15

Step-by-step explanation: Identify two points in the graph

Make one of them (x1, y1) and the other (x2, y2)

Then use the slope equation:m= y2- y1/ x2 - x1

Use three of the numbers or symbols below to create an expression equal to 4/9 Type the expression. With 4, 9, =, -, x, and ÷

Answers

Answer:

4 ÷ 9

Step-by-step explanation:

I'm not sure if this is exactly what you mean, but 4/9 means that 4 is being divided by 9, which is expressed with 4 ÷ 9.

f(-5) if f(x) = -2x + 8

help

Answers

the answer would be 18

What is the value of x? Answer must be in decimal form 1.5x + 4 = 2.3x - 1.2
I need help

Answers

Answer:

x = 6.5

Step-by-step explanation:

1.5x - 2.3x + 4 = 1.2

1.5x - 2.3x = -1.2 - 4

-0.8x = - 1.2 - 4

-0.8x = -5.2

divide both sides of the equation by -0.8

x = 6.5   :)

HELP PLS FOR POINTS AND BRAINLIEST

Answers

Answer:

i have no clue

Step-by-step explanation:

How much louder (more intense) is a 55-decibel sound than a 10-decibel sound?

Answers

Answer:

Try using quizlet or ask for a tutor I don’t understand that

Step-by-step explanation:

What is the volume of this rectangular prism?
A 120 cm^3
B. 94 cm^3
C. 12 cm^3
D. 60 cm^3

Answers

The volume of this rectangular prism is 12 cm^3

Answer:

60cm

Step-by-step explanation:

PLZ HELP ME I NEED THIS FAST

Answers

The answer is D :) II hope that this helps and if you need a bigger description I can help

The height of triangle is 8 inches less than
its base. The area of the triangle is 192 square inches.
Find the dimensions of the triangle

Answers

Answer:

The base = 24 in

The height = 16 in

Steps:

x(x-8)/2 = 192

(x²-8x)/2 = 192

x²-8x = 192 × 2

x²-8x = 384

x²-8x-384 = 0

by using the quadratic formula, the roots are: (24, -16)

hence

x = 24

The base = 24 in

The height = 16 in

Solve for x...........................................

Answers

Answer:

x = 12

Step-by-step explanation:

The exterior angles of any polygon always add up to 360, so:

[tex]5x+4+4x+9+7x+4+9x-6+4x+1=360\\29x+12=360\\29x = 348\\x = 12[/tex]

Aisha runs a tutoring business. With Plan 1, students may choose to pay $20 per hour. Plan 1 is shown on
the graph in red. With Plan 2, they may follow the plan shown on the graph in blue

Answers

Answer:

Equilibrium point

Step-by-step explanation:

It's where the two lines in this graph meet.

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