A scientist was in a submarine below sea level studying ocean life over the next 10 minutes she dropped 23.5 feet how many feet has she been below sea level if she was 89.2 feet below sea level after she dropped

Answers

Answer 1

Answer:

65.7 ft.

Step-by-step explanation:

at first, let's say she was x fts. below sea level.

over the next 10 minutes she drops 23.5 ft.

that is her height below sea level then becomes

(x + 23.5) ft.

and it's given that she dropped to 89.2 ft. below sea level.

x + 23.5 = 89.2

x = 89.2 - 23.5

x = 65.7 ft.

and x was the height she's been below sea level.

Therefore ,she's been 65.7 ft. below sea level.

Answer 2

Answer:

65.7

Step-by-step explanation:

We need to find out how many feet she was at. So it is really simple you have to subtract 23.5 from 89.2 and you will get 65.7 which was how many feet she was.


Related Questions

I need some help with this(ratio)(need explanation)

Answers

C because if you need to do 5x4=20 so then 3x4=12

One student starts with a 3-lb hand weight and increases the weight by 2 lb per
month. Another starts with a 5-lb hand weight and increases the weight by 1 lb
per month. For each student, write an equation that represents how much
weight y the student is lifting after x months.

Answers

Answer:

Student A: y=3+2x

Student B: y=5+1x

Hello can some one please help me

Answers

Answer:

[tex]216[/tex]

Step-by-step explanation:

Remember that [tex]a^{b}=a*a*a*a*... b~~times[/tex].

So, [tex]6^3=6*6*6=(6*6)*6=36*6=\boxed{216}[/tex]

The answer is 216. An exponent is basically repeated multiplication. Since it’s 6^3 you would do 6*6*6

Do you think the difference of 1.4-0.95 is less than one or greater than one? Explain.

Answers

Answer:

The answer would be , less than one .

The difference of 1.4 - 0.95 is less than one as per the concept of subtraction.

To determine this, we can simply subtract the two values:

1.4 - 0.95 = 0.45

Since the result of the subtraction is 0.45, which is less than one, we can conclude that the difference of 1.4 - 0.95 is indeed less than one.

In numerical terms, the difference is 0.45, which is 45 hundredths or less than half of one whole unit.

When comparing the two original values, 0.95 is almost half of 1.4, making the difference smaller than one.

In summary, the difference of 1.4 - 0.95 is less than one, specifically 0.45. It is essential to pay attention to the decimal values and their magnitudes when determining the difference between two numbers.

To learn more about subtraction;

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Guys please help me i really need this right answer

Answers

Answer:

Step 2: Commutative Property

Step 3: Associative Property

Step-by-step explanation:

According to the Commutative Property of Addition: Two real numbers can be added in either order.

a + b = b + a

Therefore, she used the Commutative Property in Step 2.

In Step 3, she used the Associative Property, in which the grouping of the addends does not change the sum.

Joshua's Math textbook weighs 4.21 ounces. His Social Studies book weighs 3.99 ounces. What is the difference in weight between the two books?

Answers

The answer would be 22 cents because 4.21-3.99=22

giving all my points
k can someone pls answer this cus I need the answer PER student

For a field trip, a bus company charges a flat fee plus an additional fee per student. For 25 students, the total cost is $132.50. If there are 30 students, the total cost is $145.00. After the flat fee, what is the cost per student?

$4.75

$5.30

$2.50

$3.00

Answers

The answer is $2.50 because you do 145-132.50=12.5
Then you divide by 5 because that’s the difference between students then the final answer is 2.50

Need help please explain how you got the answer

Answers

Answer:

$600

Equation:

(Base) x (percent as a decimal) x (years) = interest

(B x .16 x 7.5 = 720)

Steps:

(Base) x (percent as a decimal) = (interest) / (years)

(B x .16 = 96)

Base = (interest / years) / (percent as a decimal)

(B = 600)

Estimate the sum or difference
4/5 + 18/20 (1 point)
1. 1
2. 1 1/2
3. 2

Answers

Answer:

[tex]2) \: \: \frac{11}{2} [/tex]

Step-by-step explanation:

[tex] \frac{4}{5} + \frac{18}{20} \\ \\ \frac{4}{5 \times 4} + \frac{18}{20} \\ \\ \frac{4}{20} + \frac{18}{20} \\ \\ \frac{4 + 18}{20} \\ \\ \frac{22}{20} \\ \\ \frac{11}{2} [/tex]

(-11[(3-25 divided by |-2|+5]

Answers

Answer:

(-11[2-25/ l-2l + 5]

(11[2-25/2+5]

(11[23/7]

11(3.28571428571)

36.1428571429

-11.0 - 3.5
Need to solve by steps

Answers

Answer: -14.5

What I did was Subtract 3.5 from -11.

When you add them together, you get 14.5, but 14.5 isn't correct, as that's a very large number compared to -11.

Answer:

-14.5

Step-by-step explanation:

-11 - 3.5

Because 11 is already negative, when you subtract a number from a negative, think of -11 becoming "smaller" (smaller being -14, or -25).

When doing -11 - 3.5, think if it as adding 11 and 3.5 together !

When you add them together, you get 14.5, but 14.5 isn't correct, as that's a very large number compared to -11.

You add a negative sign to said -14.5, and that's your answer !

Subtracting from a negative is confusing, so I taught myself to think of it as adding the numbers as if they were positive and adding a negative sign !

Find the value of x in each case:

Answers

Answer:

Sorry i don't know but i need these points *Lol* i am honest

Step-by-step explanation:

Which glide reflection describes the mapping triangle ABC to triangle DEF?

Answers

i think it’s B! good luck on the rest of your math!!

What is the remainder when 2^81 is divided by 17? Need 3 answer with solution! ​

Answers

Answer:   2

==========================================================

Explanation:

Note that 2^4 = 16 is one less than 17.

Because of this nature of being 1 less, we can say the remainder of 16/17 is -1 because it comes up one short.

In terms of modular arithmetic, we can say,

[tex]2^4 \equiv 16 \ (\text{mod } 17)\\\\2^4 \ \equiv -1 (\text{mod } 17)\\\\[/tex]

Then let's raise both sides to the 20th power. I'm picking 20 because 20*4 = 80 which will help build toward 81

[tex]2^4 \equiv -1 \ (\text{mod } 17)\\\\\left(2^4\right)^{20} \equiv (-1)^{20} \ (\text{mod } 17)\\\\2^{20*4} \equiv 1 \ (\text{mod } 17)\\\\2^{80} \equiv 1 \ (\text{mod } 17)\\\\[/tex]

Lastly, we'll multiply both sides by 2 to get to the final answer

[tex]2^{80} \equiv 1 \ (\text{mod } 17)\\\\2*2^{80} \equiv 2*1 \ (\text{mod } 17)\\\\2^{1}*2^{80} \equiv 2 \ (\text{mod } 17)\\\\2^{1+80} \equiv 2 \ (\text{mod } 17)\\\\2^{81} \equiv 2 \ (\text{mod } 17)\\\\[/tex]

So if we were to divide 2^81 over 17, then we get some quotient and a remainder of 2

2/3 times 21 in simplest form

Answers

Answer: 14

Step-by-step explanation:

you would write 2/3 X 21/1 and you would multiply 21 X 2 which is 42 divide that by 3 and you get 14

why does -4i*i=4? what happens to the i when you multiply it

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

As we know that :

[tex] {i}^{2} = i \times i = - 1[/tex]

so, over here

[tex] - 4i \times i[/tex]

[tex] - 4 {i}^{2} [/tex]

plugging the value of i² as -1

[tex] - 4 (- 1)[/tex]

[tex]4[/tex]

Simplify the expression g(x) = (x + 2)(x-4)

Answers

I dont know the answer sorry

12. Jessica places 3 photos on the cover of her picture album. She places 4 photos on each of the other pages. She has
135 photos in all. How many pages will she need if she uses all of her photos?
A. 33
B. 38
C. 40
D. 28

Answers

Answer:

A 33

Step-by-step explanation:

135 - 3 = 132 photos for other pages

132/4 = 33 pages

PLEASE HELPPPP
due in 10 min!!!

Answers

The sum of the interior angles of a triangle is 180 degrees. Therefore, we can add up angles E, F and G, set the sum equal to 180, and solve.

(8x - 16) + (x + 8) + (2x - 10) = 180

11x - 18 = 180

11x = 198

x = 18

Hope this helps!! :)

Write the equation of a line that goes through the point (2, 4) that is parallel to the
line y = 3x - 6.

Answers

Answer:

y = 3x - 2

Step-by-step explanation:

Parallel lines have the same gradient in this case 3 is the gradient.

We will use the point (2,4) to form our own equation.

4 will be y, 3 will be m, 2 will be x

All we need is to find the C in the equation y=mx + c

4 = 3(2) + c

4 = 6 + c

C = -2

Therefore;

y = 3x - 2

Problem #7: If a die is rolled one time, find the probability of getting a 5 or an even number.

Answers

Getting a 5 is a 1/6 probability if your using a 6 eyed dice. It’s 1/2 chance you’ll roll an even. Original answer is 3/6 for even but you probably have to simplify equaling 1/2

Ryan is driving on a long road trip. He currently has 13 gallons of gas in his car. Each hour that he drives, his car uses up 1.25 gallons of gas. How much gas would be in the tank after driving for 4 hours? How much gas would be left after t hours?

Answers

Answer: gas left after 4 hours :8

Gas left after t hours: 13-1.25t

Step-by-step explanation:

The gas left after 4 hours will be 8 gallons and expression for the gas left after t hours will be 13 - 1.25 t.

It is given that Ryan has 13 gallons of gas in his car and car uses 1.25 gallons of gas per hour.

We have to find out the amount of gas left after 4 hours and expression for the gas left after t hours.

What do you mean by algebraic expressions ?

The algebraic expressions are those which are made up of variables, constants and algebraic operations i.e., addition, subtraction, etc.

As per the question ;

Ryan has 13 gallons of gas in his car.

The gas used per hour = 1.25 gallons

The gas used by car in 4 hours will be ;

= 1.25 × 4

= 5 gallons

So ,

The gas left after 4 hours will be equal to ;

= 13 - 5

= 8 gallons

Also ;

The gas left after t hours can be represented by equation ;

= 13 - 1.25 t

Thus , the gas left after 4 hours will be 8 gallons and expression for the gas left after t hours will be 13 - 1.25 t.

To learn more about algebraic expressions click here ;

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{[(30−60)÷(−30)]2−15}÷(−7) help, please

Answers

Answer:

2 3/7 or 17/7

Reduce the expression, if possible, by cancelling the common factors.
Exact Form:
17/7
Decimal Form:
2.428571
Mixed Number Form:
2 3/7

The value of the numerical expression {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7) will be 2.

What is the value of the expression?

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The expression is given below.

⇒ {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7)

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.

⇒ {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7)

⇒ {[(−30) ÷ (−30)]² − 15} ÷ (−7)

⇒ {[1]² − 15} ÷ (−7)

⇒ {1 − 15} ÷ (−7)

⇒ (−14) ÷ (−7)

⇒ 2

The value of the numerical expression {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7) will be 2.

More about the value of the expression link is given below.

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10 ft
8 ft
D
Find the area of this figure. Round your
answer to the nearest hundredth. Use
3.14 to approximate a.
A = [? ] ft2
Please Colin how to do it! I need notes for final

Answers

Answer:

32

Step-by-step explanation:

please help me :DDDDDDDD

Answers

Answer:

x+5 > 4

Step-by-step explanation:

x+5 > 4 can be changed to

 -5 .   -5

x>-1

that is what is shown

A squirrel in a tree drops in acorn. How long does it take the acorn to fall 40 feet. Help please

Answers

Answer:

60 ft

after subtracting the motor car

A fish is 5 feet below the surface of a lake. If its position can be recorded as −5 feet, what would the position of 0 represent?
a the distance above the surface of the lake
b the distance below the surface of the lake
c the surface of the lake d the height of the fish

Answers

Answer: C

Step-by-step explanation: The surface of the lake.

Evaluate the expression.

Answers

Step-by-step explanation:

[tex]{ \huge{ \{}}{ \rm{ [(30 - 60) \div ( - 30)] {}^{2} - 15{ \huge{ \}}} \div ( - 7) }} \\ \\ \dashrightarrow \: { \huge{ \{}}{ \rm{[( - 30) \div ( - 30)] {}^{2}{ \huge{ \}}} \div ( - 7) }} \\ \\ \dashrightarrow \: { \huge{ \{}}{ \rm{[1] {}^{2} { \huge{ \}}} \div ( - 7)}} \\ \\ \dashrightarrow \: { \rm{1 \div ( - 7)}} \\ \\ { \boxed{ \boxed{ \rm{ \: - \frac{1}{7} \: \: }}}}[/tex]

{ [(30-60)÷(-30)]² -15 }÷(-7)= { [ -30÷(-30)]² -15 }÷(-7)= { [1]² -15 }÷(-7)= { 1-15 }÷(-7)= -14÷(-7)= 2

please mark this answer as brainlist

A cinder block is sitting on a platform 20 m high. It weighs 79 kg. The block has _______ energy.​

Answers

Answer:

This cinder block has gravitational potential energy.

This cinder block has 15 484 joules of potential energy

Step-by-step explanation:

PE = mass*gravity*height and g= 9.8 m/s^2

PE = 79 * 9.8 * 20

PE = 15 484

Given f(x) = -x – 1, find f(5).

Please help! marking brainliest

Answers

Answer:

f(5) = -6

Step-by-step explanation:

[tex]f(5) = -x - 1[/tex] [tex]f(5) = -5-1[/tex] [tex]f(5) = -6[/tex]
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