While Jackie was in Hawaii, she would dive for shells. One afternoon she dove −7.8 feet. Her next two dives were each 2 1/8 feet deeper than the dive before it. What were the depths of her second and third dives?

Dive 2: ? ft
Dive 3: ? ft

Answers

Answer 1

Answer:

Dive 2: -9 37/40 feet

Dive 3: -12 1/20 feet

Step-by-step explanation:

To solve this, we subtract 2 1/8 from -7.8 twice. First, convert -7.8 to a mixed number, that gets us -7 8/10. Now, we find the LCM of 8 and 10. That is 40. Now, we multiply 1/8 by 5/5 to get 5/40. Now, we multiply 8/10 by 4/4 to get 32/40. Now, we subtract 2 5/40 from -7 32/40. This gets us -9 37/40. That means Dive 2 was -9 37/40 feet. Now, we subtract 2 5/40 from -9 37/40. That gets us -12 2/40. We can simplify that to -12 1/20. That means Dive 3 was -12 1/20 feet.


Related Questions

I want to find the side length and get the answer step by step

Answers

Answer:

76 is the length of this rectangle and the width is 72

Step-by-step explanation:

Sorry for the sloppy handwriting

2a + 6 = 12
What does (A) equal?

Answers

Answer:

a = 3

Step-by-step explanation:

2a + 6 = 12

      -6   -6

----------------

2a = 6

take six and divide by 2

a = 3

Answer:

3

Step-by-step explanation:

2a + 6 = 12

2a = 6 - 12

2a = 6

a = 6/2

= 3

Hope this helps

PLEASE HELP DUE AT 9:30.
solve in scientific and standard notation...​

Answers

Answer:

8.8 * 10^(-5)

0.000088

Step-by-step explanation:

(7.5 * 10^(-5)) + (1.3 * 10^(-5)) = 8.8 * 10^(-5)

8.8 * 10^(-5) = 0.000088

1. List the properties of a parallelogram
2. Is it possible for a trapezoid to be a parallelogram? Why or why not?
2a. Could a rhombus be a square? Why or why not?

Answers

9514 1404 393

Answer:

see the list belownoyes

Step-by-step explanation:

1. The dictionary definition of a parallelogram is ...

  a quadrilateral with opposite sides parallel

As a consequence of this condition, a number of additional properties arise:

opposite sides are the same lengthopposite angles are congruentadjacent angles are supplementarydiagonals bisect each other

__

2. The dictionary definition of a trapezoid (US; trapezium, UK) is ...

  a quadrilateral with one pair of parallel sides.

As a consequence of this condition, it is not possible for a trapezoid to be a parallelogram.

__

3. A rhombus is a special case of parallelogram in which all sides are the same length. A square is a special case of rhombus in which all angles are congruent (as are the diagonals). Yes, a rhombus may be a square.

[tex]\displaystyle 2b.[/tex] A rhombus can never be a square because although opposite interiour angles and all four sides are congruent, their interiour angles are not right angles.

[tex]\displaystyle 2a.[/tex] A trapezium is impossibly a parallelogram because a parallelogram has two pairs of parallel sides.

[tex]\displaystyle 1.[/tex] Convex polygon with two pairs of opposite sides that are parallel and congruent [equal in length (see above picture)]

I am joyous to assist you at any time.

Seven less than half the number is equal to -24. What is the number?

Answers

(x/2) - 7 = -24
(x/2) = -17
Multiply by 2
x = -34

The number is -34

The number is -34

What is number?

A number is an arithmetic value used for representing the quantity and used in making calculations.

Given that, seven less than half the number is equal to -24.

Let the number be x,

Therefore,

(x/2) - 7 = -24

(x/2) = -17

x = -34

Hence, the number is -34

For more references on numbers, click;

https://brainly.com/question/17429689

#SPJ2

Simplify: -20b^8 + 2b^8
Enter the original expression if it cannot be
simplified.

Answers

Answer:

=-18b mini eight lol

Step-by-step explanation:

Isabel gets 50 dollars a week as an allowance. If Isabel goes to the mall and spends $12 on shorts and $8 on a t-shirt, what percent of his allowance did he spend?

Answers

The percentage he spent is 40%

-72÷9+[11×{10÷(15÷17-14)}]

Answers

Answer:

Step-by-step explanation:

-72÷9+[11×{10÷(15÷17-14)}] =

14960/223=67.08520179

Hope this helps!!

Find the gradient of the line segment between the points (7,2) and (10,-5).
Give your answer in its simplest form.​

Answers

Given:

Two end points of a line segment are (7,2) and (10,-5).

To find:

The gradient of the given line segment.

Solution:

We know that, gradient of a line segment is the slope of that line segment.

The end points of the line segment are (7,2) and (10,-5), so slope or gradient of the line segment is

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\dfrac{-5-2}{10-7}[/tex]

[tex]m=\dfrac{-7}{3}[/tex]

Therefore, the gradient of the given line segment is [tex]\dfrac{-7}{3}[/tex].

Find 415 of 619 in simplest form,

Answers

Answer:

415/619

Step-by-step explanation:

619 is a prime number, so the fraction is in simplest form already.

In a​ triangle, the measures of the three angles are​ x, x + 12 ​, and x-9. What is the measure of each​ angle?

Answers

x + x + 12 + x - 9 = 180
3x = 180 - 12 + 9
3x = 168 + 9
3x = 177
x = 59 degrees

Angle 1 = 59 degrees
Angle 2 = 59 + 12 = 71 degrees
Angle 3 = 59 - 9 = 50 degrees

Answer:

x+(x+12)+(x-9)=180

3x+12-9=180

3x=180-3

3x=177

x=177/3

x=59

Each angle is 59°, 71° and 500°

Suman bought a tea pack of 0.345kg. From that, 40g of tea was taken. What

is the amount of tea left with her?Pls answer fast

Answers

Answer:

The remaining tea = 0.305 kg

Step-by-step explanation:

The mass of Tea pack = 0.345 kg

The mass of tea taken = 40 g

as

40 g = 0.04 kg

Therefore, all we need is to subtract 0.04 kg from 0.345 kg to determine the tea left:

i.e.

Remaining Tea left = Total tea - Tea taken

                                = 0.345 - 0.04

                                = 0.305 kg

Therefore, the remaining tea = 0.305 kg

from 1954 to 1955 the sales decreased by 80 percent. If the sales in 1956 were the same as the sales in 1954, what was the increased from 1955 to 1956

Answers

9514 1404 393

Answer:

  400%

Step-by-step explanation:

Suppose sales in 1954 were 500. Then 80% of that amount is 400. A drop of 400 puts sales in 1955 at 500 -400 = 100.

The increase back to 500 in 1956 is an increase of 400 from a base of 100. As a percentage increase, that is ...

  400/100 × 100% = 400% . . . . increase from 1955 to 1956

I NEED HELP AND QUICK.

Answers

Answer:

1. 40-p+w

2. $4 left

I'm not sure about the first one, but I'm pretty sure about the second one.

Step-by-step explanation:

Philip wants to buy a lawn mower that is 25% off. The sale price is $48. What was the original price?

Answers

$64

48 would be 75% or 3/4 of the full price, so dividing it by 3 gives us 16, or 1/4. multiply by 4 to get 4/4, the whole price

help me pls!! thank you!!

Answers

Answer:

30%......

Step-by-step explanation:

look at my pokemon

On what interval(s) of x is f(x) increasing?


On what interval(s) of x is f(x) decreasing?


Answers

Answer:

Increasing → (-∞, -0.5)

Decreasing(-0.5, ∞)

Step-by-step explanation:

From the picture attached,

Vertex of the parabola represents the highest point of the curve of a quadratic function 'f'.

Left part from the vertex is increasing and the right side is increasing.

x-coordinates of the vertex,

x = -0.5

Therefore, graph of the function is increasing in the interval (-∞, -0.5)

And decreasing in the interval (-0.5, ∞).


Determine whether the function f(x) = -920 + 6 + 2 is even, odd or neither.

Answers

Answer:

Even

Step-by-step explanation:

The answer is -912 which is even because it ends with a 2.

I hope this helps. Your Welcome:)

Use the picture below to answer the following...Write the ratio of stars to all shapes in all 3 forms (remember to simplify).

Answers

Answer: 6 to 3   6:3  6/3

Step-by-step explanation:



Owen and his children went into a restaurant where they sell hotdogs for $4 each and tacos for $2.50 each. Owen has $60 to spend and

buy a minimum of 18 hotdogs and tacos altogether. If x represents the number of hotdogs purchased and y represents the number of tac

purchased,

Answers

Answer:

Hotdogs is 10

and Tacos  8 in numbers purchased

Step-by-step explanation:

Step one:

given data

Le  x represents the number of hotdogs purchased

and y represents the number of tac

hotdogs = $4 each

and tacos = $2.50 each

The total amount at hand = $60

Step two:

The systems of the equations for the situation is given as

4x+2.5y= 60---------1

x+y=18-----------------2

Required

The number of Hotdogs and Tacos purchased

from 2

x= 18-y

put x= 18-y in eqn  1

4(18-y)+2.5y= 60

72-4y +2.5y=60

collect like terms

-4y+2.5y=60-72

-1.5y= -12

divide both sides by -1.5

y= -12/-1.5

y= 8

put y= 8 in eqn 2

x+8=18

x= 18-8

x= 10

Which graph represents an exponential function?

Answers

Answer:

A simple exponential function to graph is y=2x . Notice that the graph has the x -axis as an asymptote on the left, and increases very fast on the right. Changing the base changes the shape of the graph. Replacing x with −x reflects the graph across the y -axis; replacing y with −y reflects it across the x -axis.

Can someone help asap

Answers

Answer:

IM GEORGE FLOYD

Step-by-step explanation:

Answer:

i would be 22.5 or 22 minutes and 30 seconds becuase 45 times 30 is 1350 and if you do it by 60 because thats how many seconds are in a minute you get 22.5 or 22 mins and 30 seconds

brainliest?! thank you !

Step-by-step explanation:

I really need help with this question! And I need to show work

Answers

Answer:

x=0.25 or -1/4

Step-by-step explanation:

120x + 21 = -9

120x = -30 (-21 from both sides of equation)

x = -0.25 or -1/4 (divide 120 from both sides of equation)

Answer:x=1/4

Step-by-step explanation:

120x + 21  = -9

120x = -9 -21

120=-30

x=-1/4

2 of 7
© Express in the form n :1
25:5
What is the answer?

Answers

Answer:

5:1

Step-by-step explanation:

n:1

25: 5

to get to five you multiple 1 by 5. You have to reverse the equation to n:1, so 25 divided by 5 is 5. So you'd answer would be 5:1 in the form of n:1.

I am a 2-digit number. if you double a number and multiply it by 3, it results to 72. what am I?​

Answers

Answer:

12

Step-by-step explanation:

2x (3) = 72 so 6x = 72 and so x = 12

Answer:12

Step-by-step explanation:

You divide 72 by 3 then that answer by 2 then you get 12. Then if you do 12•2 =24 Then 24 •3 it equals 72

Find the solutions of the quadratic equation -9c² +2 +3 = 0.

Answers

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

Here, a = -9, b = 2 and c =3

Put the values,

[tex]c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69[/tex]

So, the solution are -0.47 and 0.69.


Jennifer has $30. She goes to the food court to get food and drinks for
friends. Drinks are $2. Food is $3. How many drinks can Jennifer buy if she
buys no food?

Answers

she can buy 15 drinks

at school, the maximum number of students that can be in a class room is 22. if there are 25 students signed up for the geometry class, how many more students can join the class?​

Answers

Answer:

At school, the maximum number of students that can be in a class room is 22. There are 25 students signed up for the geometry class.

Therefore, there are (25-22)=3 extra students.

Hence, no more students can join the class.

PLease anwer the following ( > o < )

Answers

Answer: 12 = x + 4

Step-by-step explanation:

We know that the length of the green line is 12.

And the length of the black line will be equal to the sum of the lengths of the two smaller segments, x, and 4

Then the length of the black line is x + 4

We want to write an equation that says that the length of the green line is equal to the length of the black line, this is:

Length of green line = Length of black line

12 = x + 4

That is the equation we wanted.

Now we could solve it if we subtract 4 in both sides of the equation:

12 - 4 = (x + 4) - 4

8 = x

What is the slope of the line with points A and B?




1


-2/3


-1


0

Answers

Answer:

-1

Step-by-step explanation:

A = (0,0)

B = (1,-1)

Slope = (-1-0)/(1-0) = -1/1 = -1

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