Pls help me on this problem I’m confused

Pls Help Me On This Problem Im Confused

Answers

Answer 1

Answer:

1 yard = 3 feet

40 × 3 = 120 feet

1 foot per 2 seconds

120 × 2 = 240

240 ÷ 60 = 4 minutes

it takes her 4 minutes to reach the surface

Answer 2

Answer:

6 minutes and 65 seconds

Step-by-step explanation:

The unit rate is: 1/2.

1/2 x 40 = 40/80

80/60 = 1.33

1.33 x 3   (Because every foot is a meter)

3.99 / .60

6.65.

Hope this helps! Have a good day.

(Also, nice Sans PFP, mine is Sans too ;>)


Related Questions

4:find the measure of angle c.

Answers

Answer: 98 Degrees

Step-by-step explanation: A straight line is 180 degrees so, Take 180 minus 82 : 180 - 82 = 98 Degrees

What is 8s-3x+4k I’m confused

Answers

It can’t be. There’s something wrong with the equation.

3(x - 1) = 2x + 9
Do this equation have one solution, many solution, or no solution?

Answers

9514 1404 393

Answer:

  1 solution

Step-by-step explanation:

The coefficients of x are different on each side of the equal sign, so this equation has one solution.

_____

Additional comment

If the x-coefficients are the same on each side of the equal sign, then you need to look at the constants. If they are the same, there are an infinite number of solutions; if they are different, no solutions.

This equation simplifies to ...

  3x -3 = 2x +9

  x = 12 . . . . . . . . add 3-2x to both sides

The solution of expression by applying distributive property and combining like terms,

⇒ x = 12

Given that,

The mathematical expression is,

⇒ 3(x - 1) = 2x + 9

Now, simplify the expression by applying distributive property and combining like terms,

⇒ 3(x - 1) = 2x + 9

Apply distributive property,

⇒ 3x - 3 = 2x + 9

Combine like terms,

⇒ 3x - 2x = 9 + 3

Therefore, the solution of expression is,

⇒ x = 12

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In which choice is y a function of x?

Answers

Answer:

First choice

Step-by-step explanation:

Check if a relation is a function by looking at the x's.

No repeated x's? Then it's a function.

Repeated x's but the y is the same y both times? It's a function.

Repeated x's and different y's? NOT A FUNCTION.

see image

Solve system of equations

3x+6y=18
X+3y=15

Answers

Answer:

x = - 12, y = 9

Step-by-step explanation:

Given the 2 equations

3x + 6y = 18 → (1)

x + 3y = 15 → (2)

Multiplying (2) by - 3 and adding to (1) eliminates the term in x

- 3x - 9y = - 45 → (3)

Add (1) and (3) term by term to eliminate x

- 3y = - 27 ( divide both sides by - 3 )

y = 9

Substitute y = 9 into either of the 2 equations and evaluate for x

Substituting into (2)

x + 3(9) = 15

x + 27 = 15 ( subtract 27 from both sides )

x = - 12

Solution is (- 12, 9 )

Find the circumference and area of a circle with a radius of 11 inches.

Answers

Find the circumference and area of a circle with a radius of 11 inches.

Answer:

69.12

The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.
Which function best models the data?
A)y = 0.001x2 - 0.426x + 35.672
B)y = -60.4x2+ 348.1x - 334.2
C)y = 0.001x2+ 35.672
D)y = -60.4x2 - 334.2

Answers

The table is an illustration of a quadratic regression model

The function that best models the data is y = -60.4x^2 +348.1x -334.2

How to determine the function that models the data?

To determine the function that models the data, we make use of a graphing calculator.

Using the graphing calculator, we have the following calculation summary

a = -60.4

b = 348.1

c = -334.2

A quadratic regression model is represented as:

y = ax^2 + bx + c

So, we have:

y = -60.4x^2 +348.1x -334.2

Hence, the function that best models the data is y = -60.4x^2 +348.1x -334.2

Read more about regression models at:

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Place the steps in solving the following equation in the correct order (from top to bottom).

Answers

Answer:

Step-by-step explanation:

1- Distribute

2-Combine like terms

3. divide on both sides

4- subtract from both sides

A desk is purchased for $277. Calculate its worth after depreciating for 5 years if it’s depreciation rate is 20% per year.

Answers

Answer: After 5 years it’ll cost  $90.767.

Step-by-step explanation:

write and solve an equation.
The current temp is 54•F. It's expected
to rise 2.5•F each hour. In how many
hours will the temp be 84•F

Answers

Answer:

12

Step-by-step explanation:

84-54=30

30/2.5=12

In the figure, AngleRQS Is-congruent-to AngleQLK.

3 lines are shown. Lines S P and K N are parallel. Line R M intersects line S P at point Q, and intersects line K N at point L. Angle R Q S is x degrees. Angle K L M is (x minus 36) degrees.
What is the value of x?

36
72
108
144

Answers

Answer:

C. 108

Step-by-step explanation: This is the correct answer on Edge 2021, just took the quiz and made a 100%. Hope this helps ^-^.

The value of 'x' is 108° . Option C

How to determine the value of x

From the illustration,

Angle RQS is at Q = x degrees

Angles KLM is at L = x - 36 degrees

Note that they are corresponding angles

Corresponding angles sum up to 180°

Then equate both angles to 180 degrees

x + x - 36 = 180°

Collect like terms

2x = 180 + 36

2x = 216

Make 'x' subject of formula

x = 216 / 2

x = 108°

Therefore, the value of 'x' is 108° . Option C

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Lily uses the function f(x)=23,000(1.021)x to model the future annual population growth of the city where she lives. Which of the following represents Lily's estimate of the population in 8 years?

3,395


23,483


27,160


187,864

Answers

Answer:

its not b

Step-by-step explanation:

its c 27160 we went over this with my teacher

PLS HELP IT'S DUE TODAY

Answers

Answer:

i am so srry but i dont know but good luck

Step-by-step explanation:

the price of a 70 inch tv was reduced from 800$ to 600$ on black friday by what percentage was the tv reduced

Answers

well, from 800 to 600 is 200 bucks.

if we take 800 to be the 100%, what is 200 off of it in percentage?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 800 & 100\\ 200& x \end{array} \implies \cfrac{800}{200}=\cfrac{100}{x}\implies 4=\cfrac{100}{x} \\\\\\ 4x=100\implies x=\cfrac{100}{4}\implies x=25[/tex]

A school has an unreliable clock in its tower.The probabilities of gain and loss in the clock in any 24-hour period are given in this table.

Gain of 1 minute No change Loss of 1 minute
Probability 1/2 1/3 1/6

If the clock is set to the correct time at noon on Sunday,find the probability of these events:
(a)The clock is correct at noon on Tuesday.
(b)The clock is not slow at noon on Wednesday.

Answers

Answer:

(b) What is the probability that exactly two of the three friends will sit next

to each other?

7E-10 You and two of your friends are in a group of 10 people. The group is

randomly split up into two groups of 5 people each. Specify an appropriate

sample space and determine the probability that you and your two friends

are in the same group.

7E-11 You are dealt a hand of four cards from a well-shuffled deck of 52

cards. Specify an appropriate sample space and determine the probability

that you receive the four cards J, Q, K, A in any order, with suit irrelevant.

7E-12 You draw at random five cards from a standard deck of 52 cards.

What is the probability that there is an ace among the five cards and a king

or queen?

7E-13 Three balls are randomly dropped into three boxes, where any ball is

equally likely to fall into each box. Specify an appropriate sample space and

determine the probability that exactly one box will be empty.

7E-14 An electronic system has four components labeled as 1, 2, 3, and 4.

The system has to be used during a given time period. The probability

that component i will fail during that time period is fi

for i = 1, . . . , 4.

Failures of the components are physically independent of each other. A

system failure occurs if component 1 fails or if at least two of the other

components fail. Specify an appropriate sample space and determine the

probability of a system failure.

7E-15 The Manhattan distance of a point (x, y) in the plane to the origin

(0, 0) is defined as |x| + |y|. You choose at random a point in the unit square

{(x, y) : 0 ≤ x, y ≤ 1}. What is the probability that the Manhattan distance

of this point to the point (0, 0) is no more than a for 0 ≤ a ≤ 2?

7E-16 You choose at random a point inside a rectangle whose sides have the

lengths 2 and 3. What is the probability that the distance of the point to the

closest side of the rectangle is no more than a given value a with 0 < a < 1?

7E-17 Pete tosses n + 1 fair coins and John tosses n fair coins. What is the

probability that Pete gets more heads than John? Answer this question first

for the cases n = 1 and n = 2 before solving the general case.

7E-18 Bill and Mark take turns picking a ball at random from a bag con-

taining four red balls and seven white balls. The balls are drawn out of the

bag without replacement and Mark is the first person to start. What is the

probability that Bill is the first person to pick a red ball?

3

What are the x-intercepts of y = 2x² + 15x + 7?

Answers

I’m
The answer is o dont no 1+1=52 dot is the answer

A different camera is selling for $7. 50 off the regular price. It was discounted 15%. What was the original price of the camera? $112. 50 $75. 00 $50. 00 $45. 0.

Answers

Answer:

112.50

Step-by-step explanation:

10% added 7.50 is 75

5% added to 7.50 is is 37.50

75+37.50= 112.50

25 points please help me with this

Answers

Answer:

Step-by-step explanation:

f(-5) = -(-5) + 1

        = 5 +1

        = 6

Answer:

f(-5) = -(-5) + 1

       = 5 +1

       = 6

Step-by-step explanation:

can i maybe get branlyest i only have 1 one rn it would help

Jack rides A bike 8 miles and 3/4 of an hour . Use Vocabulary for unit rates and fractions to explain how to find jacks speed in miles per hour. Then find jacks speed

Answers

Not sure at all sorry.

Find the median. 12,5,9,18,22,25,5

Answers

Answer:

The answer is 12.

Answer:

12

Step-by-step explanation:

To Find Median;

Arrange data values from lowest to highest valueThe median is the data value in the middle of the setIf there are 2 data values in the middle the median is the mean of those 2 values.

Solve;

Least to Greatest:

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

Hence Median = 12.

[RevyBreeze]

The diagram shows a regular hexagon and a regular pentagon.
Calculate the size of the angle marked x.
You must show all your working.

Answers

Since a regular polygon has equal interior angles, then the measure of the angle marked x is: 132°.

What is a Regular Polygon?

A regular polygon is any n-sided polygon that has equal interior angles and equal sides.

Thus:

Each angle of a regular hexagon = 120°Each angle of a regular pentagon = 108°

Therefore:

x = 360 - 120 - 108

x = 132°

Thus, since a regular polygon has equal interior angles, then the measure of the angle marked x is: 132°.

Learn more about regular polygon on:

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Will give thanks, five stars, and brainliest. I already answered it but wanted to check my answer to see if I got it right. Help is appreciated. Please and thanks.

Answers

Answer:

Step-by-step explanation:

The best way to check a question like this one is to graph it. I've done that for you. The red line is the parent function; the blue line is parent shifted 4 units left.

Yes, you are right.

Kira received a $45.75 gift card for a photo center. She used it to buy prints that cost 20 cents each. The remaining balance, B (in dollars), on the card after buying x prints is given by the following function.
B(x) =45.75-0.20x

What is the remaining balance on the card if Kira bought 30 prints?

Answers

Answer:

$39.75

Step-by-step explanation:

0.2 X 30 = 6

45.75 - 6 = 39.75

A ladder is leanning on a 10m house if the base of the ladder is 3m away from the house how tall is the ladder

Answers

Answer:

The length of the ladder is 10:44 meters.

Step-by-step explanation:

Base of the ladder is 3 meters away from the house. So base =3 m

one side 10 meters and base is 3 meters

PLEASE HELP! I WILL MAKE YOU BRAINLIST!

Answers

Answer:

your answer would be B

Step-by-step explanation:

every item is 9 dollars divide the cost by the number of items it is always 9 meaning 9 is the constant. hope this helps.

Answer:

18  

To verify the constant you only have to verify every option by adding those options by itself and the one that matches your information is the correct answer


a. Describe the three ways in which two lines may be related.
b. Give examples from the real world to illustrate each of the relationships described in part a.
a. Which of the following is the correct way to relate two lines? Select all that apply.

a.parallel
b.intersecting
c.skew
d.congruent
e.collinear

Answers

Answer: Correct answers are B, D,E

Step-by-step explanation:


A parabola has focus (5,7) and directrix y=0(the X-axis). Write an equation that says point (x,y) is on the
parabola.

Answers

Answer:

Step-by-step explanation:

focus of the parabola is (2,0) and directrix is x=-2. Here,a=2.So, Equation becomes, y2=4∗2x⇒y2=8x, which is the required equation of parabola.

The equation of a parabola with the given focus and directrix is x²-10x+74=14y.

What is an equation of a parabola?

A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line

Given that, a parabola has focus (5,7) and directrix y=0.

When the focus (h, k) of a parabola and the equation of the directrix y = c are given, the equation of the parabola is given by (x-h)²+k²-c²=2(k-c)y

Here, y=c=0

Now, (x-5)²+7²-0²=2(7-0)y

x²-10x+25+49=14y

x²-10x+74=14y

Therefore, the equation of a parabola is x²-10x+74=14y.

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Factor completely 3x2 + 5x + 1

Answers

Answer:

5x+6

Step-by-step explanation:

Im not sure if its 3*2 (like multiplying) or 3x times 2?

Which numbers are factors of 15? help me out here!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

hello

they are

1 - 3 - 5 and  15

Step-by-step explanation:

2/5 x + 10 = 30 solve for x

x=

Answers

Answer:

90

Step-by-step explanation:

Step 1:

2/5x + 10 = 30      Equation

Step 2:

2/5x = 20      Subtract 10 on both sides

Step 3:

x = 20 ÷ 2/5     Divide

Step 4:

x = 20 × 5/2     Multiply

Answer:

x = 90

Hope This Helps :)

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