A scientist uses a submarine to study ocean life.
• She begins at sea level, which is at an elevation of o feet
• She travels straight down for 90 seconds at a speed of
3.5 feet per second
• She then travels directly up for 30 seconds at a speed of
2.2 feet per second
After this 120 second period, how much time, in seconds, will it take for the scientist to
travel back to sea level at the submarine's maximum speed of 48 feet per second?
Round your answer to the nearest tenth of a second.
Show your work

Answer:

52 should be the Answer

Answer:

52cm

Step-by-step explanation:

Erm its just 13 x 4...

Answer:

80 hope this helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

y =  3x - 4

x = 0,  y = 3*0 - 4

          y = -4

(0 , -4)

x = 1 ,    y = 3*1 - 4

            y = 3 - 4

            y = -1

(1 , -1)

x = 2  , y = 3*2 - 4

           y = 6 - 4

           y = 2

(2 , 2)

Now mark these points (0 , -4) , (1 , -1) & (2 , 2) in the graph and join the points

Answer:

for Question 1 the answer will be 450 cuz 900/2 is 450!

for the next one it would be -9 cuz -27/3 is -9!

hopefully this helped!

NVM I DID IT WRONG

Answer:

1. 30

2. 9

3. 0.5

Answer:

GIF can support small animations

Given:

Number of students = 35

Two out of every five boys in the club are boys.

To find:

The number of students in the club that are boys.

Solution:

Two out of every five boys in the club are boys. It means, the ratio of boys to the total number of student is 2:5.

Let the number of boys be 2x and number of students be 5x.

According to the question,

[tex]5x=35[/tex]

[tex]x=7[/tex]

Now, the number of boys is

[tex]2x=2(7)[/tex]

[tex]2x=14[/tex]

Therefore, 14 students in the club are boys.

Answer:

a

Step-by-step

Answer:

x=2

Step-by-step explanation:

2-6x=-10

-2     -2

____________-

-6x=-12

÷-6    ÷-6

______________

x=2

Hope this helps :D

Step-by-step explanation:

-4x=-10

divide both sides by -4

therefore the answer is 2.5

Answer:

b

Step-by-step explanation:

Answer:

5 L

Step-by-step explanation:

As given in question,

1 L can fill 4.2 cups.

So, 1 cup can hold [tex]\frac{1}{4.2}[/tex] L of fluid.

Therefore,

21 cups can hold = [tex]\frac{1}{4.2}[/tex] × 21

                            = 5 L

So, there is 5 L of fluid in 21 cups.

Step-by-step explanation:

i hope it help mark me brainlist if helped :)

Answer:

x= 3/-8

Step-by-step explanation:

open brackets and calculate

3- 2x-4 = 6x+2

-1-2x= 6x+2

-2x-6x= 2+1

-8x= 3

x= 3/-8

Answer:

i

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Plug in all the answer choices

A would be -2/3= -12

B would be -12= -12

C would be -36= -12

B would be 12= -12

Answer: 12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

1/3(-3)=-1

-1+13=12

Answer:

Hi... Your answer is... A=1

Answer:

y=4(3)^x

Step-by-step explanation:

The exponential function, that goes through points (0,4) and (6, 2916) is y = 4(3)ˣ

An exponential function is a mathematical function used to calculate the exponential growth or decay of a given set of data.

Given that, a graph of an exponential function is passing through, (0,4) and (6, 2916)

The exponential form of an equation is given by =

y = abˣ

Where, a is the y-intercept,

a = 4 here,

y = 4bˣ

Now substitute 6 for x and 2916 for y,

2916 = 4(b)⁶

b⁶ = 729

b = 3

Therefore,

y = 4(3)ˣ

Hence, the exponential function, that goes through points (0,4) and (6, 2916) is y = 4(3)ˣ

Learn more about exponential function, click;

https://brainly.com/question/14355665

#SPJ2

Step-by-step explanation:

100 / 2 (1500/5 (6 + (21 + 7 - 24)))

= 100 / 2 (1500/5 (6 + (28 - 24)))

= 100 / 2 (1500/5 (6 + (4)))

= 100 / 2 (1500/5 (10))

= 100 / 2 (300 (10))

= 100 / 2 (3000)

= 50 (3000)

= 150000

Rule: BODMAS (Brackets first so if there's bracket in bracket solve the bracket in the brackets first)

if left + - x /, solve x and / first from left to right then when there's + - left solve everything from left to right

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

Answer: Part 1: x=2

Part 2: 7 units

Step-by-step explanation:

Answer:

Assume flour = x and sugar = y

8x = 4y

2x = y. Main equation

So when y is 12.

2x= 12

X = 6

Thank you and please rate me as brainliest as it will help me to level up

Answer:

1.5

Step-by-step explanation:

Answer:

-30

Step-by-step explanation:

let Sarah's number be X

x-15=15x

15x*-5=105

-75x=105

-x=105-75

X=-30

I think

hope it's helpful!

The distance a baseball travels when a player hits the ball varies directly with the speed with which the player swings the bat. The graph below shows the distances a baseball travels (in feet) and the speed of the swing (in miles per hour). A graph titled Baseball Speed has speed of swing (in miles per hour) on the x-axis, and distance (in feet) on the y-axis. A line goes through points (0, 0), (40, 200), (60, 300). Based on the graph, which relationship exists between the speed of the swing and the distance the ball travels?

Answer: the realtionship between exists is (50, 145)

Answer:

The distance is 5 times the swing speed. or c

Step-by-step explanation:

Answer:

Slope = - 6/5

Step-by-step explanation:

Step 1:

y = mx + b        Slope Intercept Form

Step 2:

m = Slope

Step 3:

y = - 6/5x - 5          Equation

Answer:

Slope = - 6/5

Hope This Helps :)

Answer:

m=-6/5; the slope is -6/5

Step-by-step explanation:

Here is an easy way to define slope:

y=mx+b

m is slope and b is the y-intercept

Remember, you just have to find what is multiplied by x in a slope-intercept equation, and that is the slope.

Answer:

2 more quarts of oil is needed to fill

the engine to capacity

Step-by-step explanation:

Here, we want to calculate how many more quarts of oil is required to fill the engine to capacity

We have to convert the capacity to quarts

Mathematically, 1 gallon = 4 quarts

So 1 1/4 gallon will be 5/4 * 4 = 5 quarts

So the number of quarts needed to fill the engine to capacity will be 5 quarts - 3 quarts = 2 quarts

Step-by-step explanation:

1000 is the answer man you want it right

Answer:

1. 1, 2. -15, 3. -18, 4. -1, 5. -11. 6. 22

Step-by-step explanation:

REMEMBER: If a positive multiplies a negative, it will result in a negative. If a negative multiplies a negative, it will resolve as a positive

1. 7 - 2 x 3 = 1

First, multiply 2 and 3 to get 6

7 - 6

Subtract the numbers to get 1

2. -8 + 14 / (-2) = -15

First, do 14 divided by -2 to get -7

-8 + -7

Add the two numbers to get -15

3. -6 + (-3) x 4 = -18

First, multiply -3 and 4 to get -12

-6 + -12

Add the two numbers together to get -18

4. 48 / (-12) +3 = -1

Divide 48 and -12 to get -4

-4 + 3

Add the two numbers to get -1

5. 16 / (-2) -3 = -11

Divide 16 by -2 to get -8

-8 - 3 = -8 + (-3)

Add the two numbers together to get -11

6. -11 x 4 / (-2) = 22

Work the problem from left to right, start with -11 x 4 to get -44

-44 / -2

Divide the equation to get 22

Answer:

z = the fraction 1 divided by 14. Or 1 over 14.

Answer:

z=5

Step-by-step explanation:

Answer:

Use 12 more pounds of pasta.

Step-by-step explanation:

A restaurant uses 3 pounds of pasta for a party of 14 people. If they are cooking pasta for a party of 56 people, what should they do?

Hence, we have:

14 people = 3 pounds of pasta

56 people = x

Cross Multiply

14 × x = 56 × 3

14x = 56 × 3

x = 56 × 3/14

x = 12 pounds of pasta

Hence, if they are cooking for 56 people they should use 12 pounds of pasta