Sarah jumps rope to keep in shape. She jumps an average of 20 times in 15 seconds. Which of these describes her jumping rate?

- 60 jumps per minute
- 60 minutes per jump
- 80 jumps per minute
- 80 minutes per jump

Answers

Answer 1
60/15=4
4•20=80
*80 jumps per minute*

Related Questions

HELP ASAP: GEOMETRY

The parking spaces in a city lot were created by painting rows of parallel line segments, then painting a line that cuts through each of the parallel segments. A sketch of two parking spaces is shown below.

2 diagonal parallel lines are cut by a horizontal transversal. Where the first parallel line intersects the transversal, the top right angle is angle 1. Where the second parallel line intersects the transversal, the top left angle is angle 2.
If m∠2 = 115°, what is m∠1?

Can somebody help me with the answer to this? I'll mark brainliest!

Answers

Answer:

m<1=65°

Step-by-step explanation:

180-115=65°

It would also be 115 degrees because they are the same angle. :)

QUESTION 6, Saturday, October 10th, 2020

I have some geometry questions today. Please include your thoughts or reasoning with your answer. Thanks!

Answers

Answer:

∠JTS≅∠RST

Step-by-step explanation:

ss already there, just needs the angle in the middle

Answer:

∠JTS ≅ ∠RST

Step-by-step explanation:

One side is congruent, one side is common= congruent

Need to add the angle between them

∠JTS ≅ ∠RST

write the first four terms of each sequence
f(n) = (n - 1)(n - 2)

Answers

f(4) = (4-1)(4-2)
f(4) = (3)(2)
f(4) = 6

Michael Fenton sells plumbing supplies to contractors. He earns 3% commission on the first $15,000
in sales, 5% on the next $15,000, and 8% on sales over $30,000. Last month he sold $52,000 worth
of plumbing supplies. What was his total commission?

Answers

Answer:

His total commission was: $2,960

Step-by-step explanation:

The commissions that Michael Fenton earns by selling plumbing supplies to contractors has three levels:

On the first $15,000 in sales, he earns 3%

On the next $15,000 in sales, he earns 5%

Over $30,000 in sales, he earns 8%.

Last month he sold $52,000 worth of plumbing supplies. His commissions will be calculated according to the levels reached:

The first $15,000 gave him 3%*15,000=0.03*15,000=$450

From the $52,000 sales, there remains $52,000 - $15,000 = $37,000 for the next levels.

The next $15,000 gave him 5%*15,000=0.05*15,000=$750

Now $37,000 - $15,000 = $22,000 remain for the last level.

Michael earned 8% of $22,000 = 0.08*22,000 = $1,760

His total commission was: $450 + $750 + $1,760 = $2,960


The posted weight limit for a covered wooden bridge in Pennsylvania is 6000 pounds. A delivery truck that is carrying x identical boxes each weighing 14 pounds will pass over the bridge. If the combined weight of the empty delivery truck and its driver is 4500 pounds, what is the maximum possible value of x that will keep the combined weight of the truck, drives, and boxes below the bridge's posted weight limit?

Answers

Answer:

The answer to x is 107

Step-by-step explanation:

If the driver and truck weigh 4500 and the bridge is can hold 6000 lbs. than there is room for 1500 more lbs. multiply 14 by 100 and get 1400, than  multiply 14 by 7 and get 98. Add those to to get 1498. So the answer is x=107

TROLLS WILL BE REPORTED.


please help. Image up top.

Answers

Answer:

0

Step-by-step explanation:

The priced was decreased by $300. So it starts at -$300. Then additional features is $900. So it's now $600. But the dealer took -$600 off. So now it is $0 from the original price.

what is 9x2y-3 if x = 5 and y = 3.

Answers

Answer:

267

Step-by-step explanation:

-6(5.7)=
please help

Answers

Answer:

-34.2

Step-by-step explanation:

when u multiply those 2 numbers, it makes -34.2

Answer: G = 35.2

Step-by-step explanation: G - 6 x 5.7 = 1

G - 34.2 = 1

G = 1 + 34.2

G = 35.2

G = 176/5 , G = 35 1/5

Can someone help with the last 2?

Answers

Answer:

x > 6 and x ≤ 10

Step-by-step explanation:

You have to sleep for more than 6 hours, which means it is greater than and can not be equal to because it has to be more than 6 hours.

For the second problem, at most includes the 10th person so x is less than or equal to 10.

Hope this makes sense!!

Answer:

1. x > 6

2. x <= 10

Step-by-step explanation:

1. You want to sleep for more than 6 hours. If x equals amount of sleep, then x should be greater than 6.

2. You want at most 10 ppl. So, It can be equal to ten or less than ten ppl in the room.

which two points lie on a line with a slope closest to zero ?​

Answers

Answer:

Point N and point K

Step-by-step explanation:

The steeper a line is in the graph, the greater the value of the slope of the line would be, and also, the farther it would be from 0. On the other hand, the more gentle and less sloppy a line is, the smaller the value of the slope is, and also, the closer it is to 0.

From the graph given, there are possible set of points in a line that have a gentle line slope.

The first is, points N and K. The slope of this line is ⅑.

The second is, points P and L. The slope of this line is ⅙.

From the two above lines, the one with a slope closest to 0 is the line that runs through points N and K. ⅑ is closer to 0 than ⅙.

find the value of x. round the length to the nearest tenth. PLZ HELP ME. ​

Answers

Answer:

x ≈ 7.9 ft

Step-by-step explanation:

cos∅ = adjacent over hypotenuse

Since we are dealing with a right triangle, we can use trigonometry to help us solve for missing values:

cos44° = x/11

11cos44° = x

x = 7.91274

x ≈ 7.9 ft

2020-2021 T-Math-Gr8Reg-T1-CBT
Quest
Which of these is a solution to the equation x = 36, x? = 42, or x = 55? Select three that apply.
X-V42

Answers

answer

a,c,e

i got 100% on this quiz

The solutions to the equation x³ = 36, x² = 42, x³ = 55 are:

x = ∛36

x = √42

x = ∛55

Option B, D, and F are the correct answers

Given,

Which of these is a solution to the equation x³ = 36, x² = 42, x³ = 55

Select three that apply.

A. x = √36

B. x = √42

C. = √55

D. = ∛36

E. = ∛42

F. = ∛55

How do we write square root and cube root?

- Square root of a is written as √a.

- Cube root of a is written as ∛a.

We have,

- x³ = 36

Cube root on both sides

∛x³ = ∛36

x = ∛36

- x² = 42

Squaring on both sides

√x² = √42

x = √42

- x³ = 55

Cube root on both sides

∛x³ = ∛55

x = ∛55

We see that,

x = ∛36

x = √42

x = ∛55

Thus the solutions to the equation x³ = 36, x² = 42, x³ = 55 are:

x = ∛36

x = √42

x = ∛55

Learn more about square and cube root here:

https://brainly.com/question/27863878

#SPJ6

The complete question is:

Which of these is a solution to the equation x³ = 36, x² = 42, x³ = 55

Select three that apply.

A. x = √36

B. x = √42

C. = √55

D. = ∛36

E. = ∛42

F. = ∛55

(please help me) 3/4 - ? =1/12

Answers

Answer: 2/3

Step-by-step explanation:

Hii.Picture attached, thanks

Answers

Answer:

the answer is b 36*

Step-by-step explanation:

Can anyone able to solve this.​

Answers

Answer:

Answer in the attachment

Step-by-step explanation:

Cut off both semicircles at the top and bottom.

Find the distance between (2, -5) and (-2, 1). Round to the nearest tenth

Answers

Answer:

7.2

Step-by-step explanation:

7.2 that is the answer i think

Graph x=-5

???????????

Answers

Answer:

So the Y-intercept in this is -5.

put the first point on -5 in the Y line.

Step-by-step explanation:

Y-intercept: -5

Hey can i have some help real quick?
The question and the answer choices are in the picture!
Ty, and have a good night!

Answers

Answer:

the first one

Simplify 4x + 5x - 2.

Answers

Answer:

1x-2

Step-by-step explanation:

you subtract 4x from 5x and you get 1x-2

Answer:

9x - 2

Step-by-step explanation:

combine like terms

use the triangle inequality theorem

Answers

Answer:

Step-by-step explanation:

B) 9<x<5

X has to be more than 9.  9+8=17, which would be a straight line.

X has to be less than 25.  17+8=25, which would be a straight line.

Answer:

9 < x < 25

Step-by-step explanation:

The length of a side of a triangle must be greater than the difference between the lengths of the other sides and less than the sum of the lengths of other sides.

x must be greater than the difference between 17 and 8.

17 - 8 = 9

x > 9

x must be less than the sum of 17 and 8.

x < 17 + 8

x < 25

When you put the two inequalities above together, you get:

9 < x < 25

Answer this for BRAINLIEST !

Answers

Answer:

-1/3

Step-by-step explanation:

graph the solution to the inequality on the number line 3b + 17 _< 4b +23 + 2b​

Answers

Answer:

b_>-2 so the circle is going to be on top of -2 and it is going to be closed, going to the right

A scientist studied the migration patterns of two types of whales. The humpback whale traveled 2,000 miles in 25 days. The gray whale traveled 2,250 miles in 30 days. Assuming the humpback whale travels the same distance each day, what is the unit rate for the humpback whale in miles per day?

Answers

Humpback whales cover 110 kilometers (68.35 miles) in a day therefore the humpback covers 2.734 miles per day. I believe that’s it because I took how much it takes them to travel in one day which was 110 kilometers (68.35 miles) and divided by 25 and my result was 2.734. Let me know if this helps :)

Answer:

it is 80 miles

Step-by-step explanation:

2000 divided by 25 is 80 therefore you multiply 80 x 30

Marion is driving between two towns that are close together. If she drives1 /5 the distance of the trip in 15 minutes, what is her rate per hour?

Answers

Answer:

d

Step-by-step explanation:

Here's the question.

Answers

what is the question? i can’t see it

increasing or decreasing?
slope?
y and x intercept?
other points the line goes through?
equation if the line?

Answers

Answer:

slope = 1/2

The x-intercept is (8, 0). The y-intercept is (-4, 0).

(2, -3), (4, -2), (6, -1)

y = (1/2)x - 4

Step-by-step explanation:

1)

slope = rise/run

Start at (0, -4) and go to (2, -3).

Start at (0, -4) and go 1 unit up. That is a rise of 1.

Now go 2 units right to arrive at (2, 3). That is a run of 2.

slope = rise/run = 1/2

2)

The line crosses the x-axis at (8, 0).

The x-intercept is (8, 0).

The line crosses the y-axis at (-4, 0).

The y-intercept is (-4, 0).

3)

Here are some points: (2, -3), (4, -2), (6, -1)

4)

y = mx + b

y = (1/2)x - 4

Answer:

Below in bold.

Step-by-step explanation:

The line is rising to the right so it has an increasing slope.

The slope of the line is 4/8 = 1/2.

Reading from the graph the x intercept is (8, 0).

The y-intercept is (0, -4).

The line passes through the points (2, -3) and (6, -1).

The equation of the line is:

y = (1/2)x  - 4.

An office building is 111ft high. About how tall is this in meters?

Answers

Answer:

33.8328

Step-by-step explanation:

Divide the length value by 3.281

The three angles of a triangle are in the ratio 5:4:1. Find all the angles of the triangle.

Answers

Answer:

Step-by-step explanation:

let the first angle be 5x

second be 4x

and third be 1x

as we know that by adding all the sides of triangle we get 180°

therefore  ,

5x+4x+1x=180°

10x=180°

hence ,  

x=18°

first angle - 18*5 = 90°

second angle - 18*4=72°

third angle - 18°

HOPE THIS HELPS YOU !!!

Answer:

18°, 72°, 90°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

sum the parts of the ratio, 5 + 4 + 1 = 10 parts

divide to find the value of one part of the ratio

180° ÷ 10 = 18° ← value of 1 part of the ratio , thus

5 parts = 5 × 18° = 90°

4 parts = 4 × 18° = 72°

Thus the angles of the triangle are 18°, 72° and 90°

A bag contains 4 red, 7 blue, 8 green, and 5 white marbles. What is the theoretical probability that a randomly selected marble is green?

Answers

Answer:

33.3%

Step-by-step explanation:

add all and divide by eight, convert to percentage

hope that helps :)

Explain! Reward! Thank you!

Answers

Answer:

I think it would be 30 seconds

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