11. A scuba diver's elevation changed by -123 feet every minute. This was
1½ times the rate of change for a second scuba diver. What was the rate of
change in elevation of the second scuba diver in feet per minute?

Answer:

Step-by-step explanation:

We use a for Adult and s for Student.

Assuming this, you have to start by writing two equations from the information provided:

900 total tickets were sold    

       a+s=900                             ------(i)

they made $2,820 and  adult tickets cost $4 and kids tickets cost $2.50

      2820=4a+2.5s                    ------(ii)

lets solve for a in the first equation:

a=900-s                      

we can plug this into the second equation and solve for s

2820=4(900-s)+2.5s

2820=3600-4s+2.5s

2820=3600-1.5s

-780=-1.5s

s=520

we can plug this into the first equation and solve for a:

a+520=900

a=380

Total adult ticket sold : 380

Total student ticket sold = 520

Cost of adult tickets = 380 * 4 = $1520

Cost of student tickets = 520 * 2.5 = $1300

I hope this helps. For more you can visit :

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Answer:

3 1/3

Step-by-step explanation:

       See attachment below

Answer:

Option (A) 3 1/3

Step-by-step explanation:

Let’s solve the improper fraction into a mixed fraction.

The simplified fraction will get a remainder but we I’ll not solve the remainder.

50/15

Quotient = 3

Remainder = 5

Fraction = 3 5/15

               = 3 1/3

Hope my answer helps you ✌️

Mark BRAINLIEST

Answer:

(3/2 m)^2 -(5n)^2^

Step-by-step explanation:

Answer: 9m^2 / 4  -  25n^2

Step-by-step explanation:

Use the identity: (a-b)(a+b)=a^2 - b^2
substitute values of a and b, where a=3/2m and b=5n.
The following simplifies to (3/2m)^2 - (5n)^2.

Answer:

20160 pounds

Step-by-step explanation:

20 * 15 * 12 = 3600 feet^3 = Volume

3600 feet^3 * 5.6 pounds = 20160 lbs

Answer:

The answer is 3605

Step-by-step explanation:

That is the answer because you have to do 20x15x12 and that will equal 3600 and then you do 3600+5.6 and that will equal 3605

-1/7 belongs to B. Rational numbers and F. Real numbers.

A set is a collecting of well defined objects one form of writing a set is in roaster method where we write the elements with commas and close them with second brackets.

According to the given question we have to select all the sets in which the number - 1/7 is an element.

-1/7 is a rational number as it can be written in p/q form where q ≠ 0.

This also contain in the set of real numbers as in -1/7 there is no imaginary part.

learn more about number system here :

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Answer:

814.82 \(m^{3}\)

Step-by-step explanation:

The radius of the sphere is half of diameter = \(\frac{11.6}{2}\) m = 5.8 m

we, know Volume of sphere is = \(\frac{4}{3}\) x pi x \(Radius^{3}\)

                                                   =  1.33 x 3.14 x 5.8 x 5.8 x 5.8

                                                   =  814.82 \(m^{3}\)

To learn more about Volume of sphere,

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Answer:

2nd graph in yellow

Step-by-step explanation:

The system of equations needed to solve the given equations is . Thus, the correct graph is the top-right graph. Its plotted below.

How to find the system of equations needed to solve an equation?

An equation usually consists of equality of two mathematical expressions. Let it be

�

=

�

A=B . If we take them to be equal to third variable, then:

�

=

�

=

�

A=B=C type of equation is obtained.

We can then take it as system of two equations as:

�

=

�

�

=

�

A=C

B=C

Solution to this system will give us the solution to the considered equation

What is a solution to a system of equations?

For a solution to be solution to a system, it must satisfy all the equations of that system, and as all points satisfying an equation are in their graphs.

For the given case, we are given that:

2

�

−

1

=

�

+

2

2

x

−1=x+2

Taking these two mathematical expression equal to 'y', we get:

2

�

−

1

=

�

+

2

=

�

2

x

−1=x+2=y

or

�

=

2

�

−

1

�

�

�

�

=

�

+

2

y=2

x

−1

and

y=x+2

Plotting these two functions on the X-Y plane, the common point of these curves is the common value which can satisfy both the equations simultaneously, and thus, being the solution to the considered system of equations.

Thus, the solutions are those two points that are intersections of those two curves.

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

Answer:

1.6.

Step-by-step explanation:

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Answer:

1.6

Step-by-step explanation:

1.6 is the answer because it's rounded to the closest tenth

Answer:

you didnt put enough context in your question but if shana kept using three she would have mixed even and odds in her numbers if you could give more context to the question id be glad to help more

Answer:

D

Step-by-step explanation:

just multiply the three over four inches with seven and a half to get the accurate measurements

Answer: 2/15 and 9/10

Step-by-step explanation:

Set up cross-multiplication.

If Michelle reads 1/3 book in 2 1/2 hours, she reads X in 1 hour.

                      1/3          2 1/2

                          x           1

1/3 = 2 1/2 x

divide by 2 1/2

1/3 divided by 2 1/2 = convert 2 and a half to 5/2

1/3 divided by 5/2 - keep, change, flip. (your teacher should have covered a method like that)

1/3 times 2/5 is 2/15.

For question 2, lets do the same thing.

3/5 times 2/3 equals x times 1

3/5 times 1 is 3/5

2/3 times x is 2/3x

(this looks better on paper)

3/5=2/3x

divide by 2/3

answer - he will finish 9/10 assignment in the hour

Answer:

21

Step-by-step explanation:

You probably know that the number above the fraction line is called the numerator and the number below it is called the denominator. To work out the fraction of any number, we first need to convert that whole number into a fraction as well.

Here's a little tip for you. Any number can be converted to a fraction if you use 1 as the denominator:

36/1

So now that we've converted 36 into a fraction, to work out the answer, we put the fraction 7/12 side by side with our new fraction, 36/1 so that we can multiply those two fractions.

That's right, all you need to do is convert the whole number to a fraction and then multiply the numerators and denominators. Let's take a look:

7/12 x 36/1 = 252/12

In this case, our new fraction can actually be simplified down further. To do that, we need to find the greatest common factor of both numbers.

You can use our handy GCF calculator to work this out yourself if you want to. We already did that, and the GCF of 252 and 12 is 12.

We can now divide both the new numerator and the denominator by 12 to simplify this fraction down to its lowest terms.

252/12 = 21

12/12 = 1

When we put that together, we can see that our complete answer is:

21/1

The complete and simplified answer to the question what is 7/12 of 36 is:

21

Answer:

13r6

Step-by-step explanation:

Answer:

No, it's not

Step-by-step explanation:

You choose the longest side which is 12 and apply the theory of phitagors

The longest side which is the hypotenuse in a right triangle = square root the square sum for each side

So to be a right triangle it should be

\( \sqrt{ {9}^{2} + {6}^{2} } = 10.8 \: \: that \: doesnt \: equal \: 12\)

So it's not a right triangle.

Look at the famous right triangle whose side are 5(hypotenuse), 4, 3

\( \sqrt{ {4}^{2} + {3}^{2} } = 5\)

So it's a right triangle

Answer: 162

Step-by-step explanation: 1 hundred is 100+ 5 tens that’s 50,+ 12 ones that’s 12. So, 100+50+12=162.

Answer:

162

Step-by-step explanation:

So one way that you can figure that out is by doing

  100

+   50

     12

______

   162

Hope it helped!

Answer: the answer is A,5

Step-by-step explanation:

you have to do the equation to find slope y sub2 -y sub1 / x sub2 -x sub1 and i chose (-2, -12) as the sub 1's and the (-1, -7) as the y sub2's so the equation is -7+12/-1+2 that equals 5/1 or 5 so the answer is A

I HOPE THIS HELPS

Answer:

D least common multiple 3

Step-by-step explanation:

I got it right

Answer: 20.41

Step-by-step explanation: step 1: (10.80 * 0.65) + 10.80 = 17.82

step 2: (10.80 * 0.24) + 17.82 = 20.41

x = -29/7

Step-by-step explanation:

A(x) = (x^2 + 5x + 6)(x + 5) - (x^2 + 3x - 4)(x + 7)

= (x^3 + 10x^2 + 31x + 30) - (x^3 + 10x^2 + 17x - 28) = 14x + 58

A(x) = 0 => 14x + 58 =0 => x = -58/14 = -29/7

Answer:

778744

Step-by-step explanation:

387t98878989890

Answer:194.99 with tax and you save 105 dollars. without tax, your price total is 206.69 and you save 111.30.

Answer:

-x-12

Step-by-step explanation:

Given:

\(\displaystyle \large{|x-(-12)| \quad (x < -12)}\)

Simplify:

We know that negative times negative equals positive, therefore:

\(\displaystyle \large{|x+12| \quad (x < -12)}\)

Modulus Property:

\(\displaystyle \large{|x+a| = \begin{cases} x+a \quad (x \geq -a) \\ -x-a \quad (x < -a) \end{cases}}\)

Therefore, since given interval is x < -12:

\(\displaystyle \large{|x+12| \quad (x < -12) = -x-12}\)

Hence, simplified expression is -x - 12

Answer:

-x-12

Step-by-step explanation:

The simply answer

Answer:

Strawberry= 3
Watermelon=3
Coconut=9
Orange=5

Step-by-step explanation:

Quite easy, you can use substitution

First look at the simplest row that can be solved by itself

row 2:

2strawberries +4 = 10

2 strawberries= 6

1 strawberry = 3

Row 3: Strawberry(3)+ orange=8

1 orange= 5

Rpw 4: 14= 1coconut +orange(5)

1 coconut= 9

Row 1: Coconut(9)+ watermelon+ coconut(9)= 21

2 coconut(18)= 21

1 watermelon = 3

Answer:

A

Step-by-step explanation:

We can solve for H by isolating it on one side of the equation, as follows:

J/H - I/H = G

Taking H as the common denominator:

(J - I)/H = G

Multiplying both sides by H:

J - I = GH

Adding I to both sides:

J = GH + I

Dividing both sides by G:

H = (J - I)/G

So the answer is

(A)

H = (J - I)/G.

Answer:   A

Step-by-step explanation:

\(\frac{J}{H} = G + \frac{I}{H}\)                >Since you are solving for H bring I/H to the other side

                                   by subtracting I/H from both sides

\(\frac{J}{H}- \frac{I}{H} = G\)               >There is a common denominator so you can

                                   combine the fractions

\(\frac{J-I}{H} = G\)                   >Multiply both sides by H or cross multiply whichever

                                  way your mind things about how to get H on top

\(J-I = G(H)\)           >Divide both sides by G

\(\frac{J-I}{G} = H\)                   >Answer is A

Answer: Model B

Step-by-step explanation: Model B, shows the cutting of 40%  of the ribbon since, if you divide it into 10 parts, with each piece representing 10%, if you take away 4 of those parts, which is equal to 40%. So it is Model B.

Answer:

area of large triangle=1/2× 14×9=63

area of small triangle=1/2×4××14=28

total area=63+28=91

Answer:

13/1900

Step-by-step explanation: