Mathematics Middle School

    A scuba diver is swimming 15 feet below the water’s surface. The diver swims up slowly at 0.5 feet per second for 4 seconds; and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth? Enter your answer in the box.

Answers

Answer 1
11.8 feet.

15 feet -(0.5feet×4)
=15feet-2feet
=13 feet
13feet-(0.4feet×3)
=13feet-1.2feet
=11.8 feet
Answer 2

Answer:

-11.8

Step-by-step explanation:

because the scuba diver was below sea level and the key word is below sea level which is negative

Related Questions

each pizza = 6 people. what does pizza stamd for?

Answers

How many pizza they get

If 2 more students took the math test and both made a score of 80, what would the picture graph look like?

Answers

If both of them scored 80, then on the graph, both of them will lying on the same points. Say x axis student and y axis is Marks , then for student 1, the point that will be marked is 80 and for student 2 also, the point that will be marked is 80. If both the points are connected, then we will be getting a straight line connecting both the dots. Hence the graph will be a straight line.

There are 300 apples and peaches for sale at a farmer's market. The ratio of the number of apples to the number of peaches is 7 : 8. If 50 apples and 40 peaches are sold, what is the ratio of the remaining apples to peaches?

Answers

7:8.....added = 15

7/15(300) = 2100/15 = 140 apples
8/15(300) = 2400/15 = 160 peaches

if 50 apples and 40 peaches are sold....
apples : 140 - 50 = 90
peaches : 160 - 40 = 120

ratio of remaining is : 90/120 which reduces to 3/4 or 3:4 or 3 to 4 <==

Explain how you can find 3x584 using expanded form

Answers

I believe what you need to do is multiply 3 by each number. 
To start, 3*584 is 1752. Expanded form written out would be (3*500)+(3*80)+(3*4). Simply multiply all the numbers and then add them together. 3*500=1,500; 3*80=240; 3*4=12. 1,500+240=1740+12=1752. Hope this helps! :)

how are rates and ratios related?

Answers

Fundamentally, a ratio is a ratio, a rate is a ratio with time as the denominator and a period is the inverse of a rate.

Of course, there are differential forms of these concepts, where it is not a ratio truly, but it is a “ratio” of differential elements.

Unite price batteries size 4pk and total price 2.97 how come unite price

Answers

To find the unit price, divide the unit by the the total amount:

2.97/4
0.7425

Round this to the nearest cent:

$0.74

Hope this helps!

Answer:

divide the unit by the the total amount

The answer is 0. 74

4.3t-2.1t-2.3=7.6
Solve equation

Answers

If your solving for t then t = 4.5 
Final answer:

The equation can be solved by combining like terms, isolating the variable t, then dividing by the coefficient of the variable. The solution to the equation is t = 4.5.

Explanation:

The given equation in this problem is 4.3t - 2.1t - 2.3 = 7.6. To solve the equation, first we need to combine like terms, meaning we would subtract 2.1t from 4.3t.

This leaves us with 2.2t - 2.3 = 7.6. After that, we must isolate t by adding 2.3 to both sides of the equation. This results in 2.2t = 9.9. Finally, we divide both sides by 2.2 to solve for t, which gives us t = 4.5.

Learn more about Algebra here:

https://brainly.com/question/24875240

#SPJ2

how can adding. doubles help you multiply by 2 give an example

Answers

Since you add a number x amount of times by itself when you multiply it by x, we have, for example, 3*2=3+3=6. In addition, 3*3=3+3+3=9 and 3*4=3+3+3+3 (4 times)=12.

Evaluate the function
f(x)= 7.45x + 33.7 at x= -4.3

Answers

First, you have to substitute for x, which would make the problem f(x)=7.45(-4.3)+33.7
Now, you just have to use the PEMDAS method (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)
f(x)= -32.035+33.7
f(x)=1.665

The sign of the product of two integers with the same sign is positive. What is the sign of three integers with the same sign? Explain your thinking.

Answers

Answer:

Negative.

Step-by-step explanation:

The answer is negative, because if the number of integers you are multiplying is odd, then the sign is negative. But if the number of integers you are multiplying is even, then the sign is negative. In this case, three is odd, so the sign is negative.

Which equation can be used to find one or more factors of 26

Answers

The factors of 26 are one, two, 13 and 26. One and the number itself, in this case 26, are always factors. Since 26 is an even number, which means that it ends in zero, two, four, six or eight, it's evenly divisible by two. Two times 13 equals 26.

No numbers between two and 13 divide evenly into 26, so there are no more factors other than the four listed. Because two and 13 are both prime numbers, which are numbers that are only divisible by one and themselves, the prime factorization of 26 is 2 x 13. The prime factorization of a number refers to the prime numbers that multiply together to make that given number
One equation could be x(y)=26

Wich is greater 0.48 or 6 15

Answers

6.15 is greater because 0.48 is 48 hundredths
6.15 is greater because its a whole number and 0.48 is a decimal

The perimeter of a patio is 64. The width of the patio is 12 feet and the length of the patio is (×+6) feet. What is the length of the patio?

Answers

12(2)+(x+6)(2) = 64
 12(2) = 24 
Distribute the (x+6)(2)= 2x + 12
New equation: 
 24 + 2x + 12 = 64
Solve for x, and you will get x = 14 
Then put that back in to (x+6). 14 plus 6 equals 20. Which L = (x+6)

L = 20 
20 is your final answer.

I hope this helped!!

please help me with this

Ernesto built a wooden car for a soap box derby. He is painting the top of the car blue and the sides black. He already has enough black paint, but needs to buy blue paint. He needs to know the approximate area of the top of the car to determine the size of the container of blue paint he should buy. He measured the length to be 9 feet 11.25 inches, and the width to be 0.5 inches less than 3 feet. Draw a diagram and label the measurements. What is the area of the top of the car? What is the most accurate area Ernesto can use to buy his paint?

Answers

Google it and see what you get

6(3a+1)-30=3(2a-4) okay i suck at algebra . please help me lol

Answers

So expand your brackets so 6(3a+1)=18a+6 now -30 so 18a-24
3(2a-4) becomes 6a-12
18a-24=6a-12
18a-6a=-12+24
12a=12
a=1

Aisha thinks 1,275 rounded to the nearest hundread is 1,200 because 2 is less than 5 what might aisha misunderstand about rounding

Answers

For rounding, you look at the number to the right of it.

In this case, it would be 7

because 7 is greater than 5, it is rounded up (remember, 5 and up is round up, while 4 and lower is round down)
So her answer should be 1300

hope this helps
I believe Aisha is wrong because its rounding to the nearest hundred, not to the nearest thousandth 

706421 rounded to the nearest thousand

Answers

706,400. Since it is 421 you would round down
The answer to this question is 70600

26-38+(-3) what is the answer.

Answers

So basically, first just do this step by step, or subtract 38 from 26 first.

26 - 38 is basically -(38 - 26), or -12.

So then, it becomes -12 + (-3)

A - and a + becomes - because you're adding negative 3.

-12 - 3

Which then becomes -15.
The answer to your question is -15

what’s the value of 1 2/3 divided by 1 7/18 In mixed number fraction form someone please help :)

Answers

12/3=4
4 divided by 17/18 equals to 4* 18/17=72/17= 4 4/17
Thus the answer is 4 4/17

Jess recently started a business producing cosmetic products made from natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. She calculated that it takes a person 2222 minutes to prepare one bag. How many hours will it take to prepare 1200120012001200 bags of samples if Jess and 7777 of her friends work simultaneously?

Answers

Answer in minutes: 342.86

Answer in hours: 5.7143

Answer:

5

Step-by-step explanation:

I put 5.7143

but they told me it was 5

ur welcome

PLEASEEEE HELP MY LIFE :((((

Answers

Since he gets 10$ per shirt, his revenue is 10y if y represents the shirts sold as he adds 10$ with every purchase. His expenses start with the base cost of 1500, then he also has to pay 3 dollars for each shirt, so his expenses add up to 1500+3y. Since he wants to make as much as he spent, his revenue has to equal his expenses and 10y=1500+3y. Subtracting 3y from both sides, we get 7y=1500. Dividing both sides by 7, we get y=214.something=215 by rounding up
the break even point is when ur expenses = ur revenue...there is no profit

1.  expenses (what it costs steve ) are 1500 plus x shirts for $ 3
     revenue(what steve makes from selling shirts) are x shirts for $ 10
     so ur 2 equations would be : y = 3x + 1500 and y = 10x

2. 3x + 1500 = 10x
    1500 = 10x - 3x
    1500 = 7x
     1500/7 = 214.28....so he would have to sell 215 shirts.

PLease help!!
Use the figure to the right to find the value of PT. T is the midpoint of PQ
PT=3x+2 and TQ= 5x - 8
Simplify your answer

Answers

3x+2=5x-8 so 2x=10 therefore the answer is x=5

Simplify the expression 4^3 + 2(3 - 2)

Answers

4 x 4 x 4 = 16 x 4 = 64

64 + 2(1) = 64 +2 = 66

66 is your answer

hope this helps
[tex]4^3 + 2(3-2) 4^3 + 2(1) 64 + 2 66 _________________ Thus, the answer is: 66 You're welcome. [/tex]

Josh is 4 years older than Delaney. In 5 years the sum of their ages will be 60. How old is Josh now?

Answers

x + 5 + 4 + x + 5 = 60
2x + 14 = 60
-14 -14
2x = 46
x = 23

So, Josh's age is 23 + 4 which is 27 years old.

Final answer:

The problem is a middle school mathematics question about algebra and age. By setting up an equation and solving it, we found that Josh is currently 27 years old.

Explanation:

The subject of this question is Mathematics, and it is likely a Middle School level problem. To solve this, we set up an equation based on the information provided: Let's denote Delaney's current age as D. According to the question, Josh is 4 years older than Delaney, so Josh's current age is D + 4 years. In 5 years, Delaney will be D + 5 years old, and Josh will be (D + 4) + 5 which simplifies to D + 9 years old. We know that the sum of their ages in 5 years will be 60. Therefore, the equation is:

D + 5 + D + 9 = 60

Combining like terms, we get:

2D + 14 = 60

Subtracting 14 from both sides, we get:

2D = 46

Divide both sides by 2 to find Delaney's current age:

D = 23

Now, we can determine Josh's current age by adding 4:

Josh's age = D + 4 = 23 + 4 = 27

Therefore, Josh is currently 27 years old.

The product of a number m and 1.7 is 6.63. Determine what an equation would be and solve for m. What is the value of m?

Answers

The equation would be m*1.7=6.63, because 6.63 is the *product* (showing that you need to multiply). and to find m you would need to divide 6.63 by 1.7 to do inverse operations. M equal 3.9.

Percent of change
original:35
new:70

Answers

Hello, the formula to find a percent of change is [(new value - start value) / start value] × 100

[(70-35) / 35] × 100 = (35 / 35) × 100 = 1 × 100 = 100%

Answer = 100%

Mrs. Synder must choose two of her homeroom students to be class representatives. The class consists of 13 girls and 9 boys. Approximately what percent chance is there that the first student chosen is a boy and the second student chosen is a girl? (Round to the nearest percent)

A. 10%

B. 25%

C. 22%

D. 15%

Answers

9/22 x 13/21 = 0.25 = 25% B

Answer:   B. 25%

Step-by-step explanation:

Given : Number of boys in the class = 13

Number of girls in the class = 9

Total students  = 13+9=22

Now, the number of ways to choose first boy then a girl =[tex]13\times9=117[/tex]     (1)

Number of ways to choose nay two students :-

[tex]{22}P_{2}=\dfrac{22!}{(22-2)!}\\\\=\dfrac{22\times21\times20!}{20!}=462[/tex]     (2)

Now, the probability that the first student chosen is a boy and the second student chosen is a girl :-

[tex]\dfrac{117}{462}=0.253246753247\approx0.25[/tex]   [Divide (1) by (2)]

In percent , [tex]0.25\times100=25\%[/tex]

Hence, approximately 25% chance that the first student chosen is a boy and the second student chosen is a girl.

Is 0.09 greater than 0.7

Answers

no, 0.7 is greater than 0.09

0.70 > 0.09

hope this helps
Think of 0.7 as 0.70

In terms of money, 0.09 dollars is the same as 9 cents
Similarly, 0.70 dollars is the same as 70 cents

So the value 0.70 is larger

Anwser. Anwser. Answer. Anwser

Answers

the answer to x is 7 because 4 times 6 is 24 and 7 times 6 is 42

Answer:

i think x to 7 i belive

Step-by-step explanation:

What is the GCF of 12 and 16...

Answers

gcd(12, 16) = 4 I hope I was help full


The GCF of 12 and 16 is 4

12/4 = 3
16/4 = 4

TRUE

hope this helps

(it must end up as a whole number for it to work as a GCF, the bigger the number, the better)
Other Questions
10x5 thousands=50,00 What is the slope of the line whoes equation is 2x-4y=10 A person with a _____ is expected to earn an average of $52,200 each year. Although conflict between adolescents and parents over mundane matters (e.g., curfews, clothing) is generally _____ frequent in ethnic minority than in white families, the topics of disagreement are _____ across ethnic groups What radius should the satellite move at in its orbit? (measured frrom the center of mars.)? how do i solve 6y-5=-3(2y+1) URGENT!: Which property justifies this statement?If x + y = z and z = x + 4, then x + y = x + 4. A. symmetric B. distributive C. transitive D. associative The daily dose of ampicillin for the treatment of an ear infection is 115 mg/kg of body weight. what is the daily dose for a 34 lb child? The correct order of the structures of the motor neuron is: During an ige-mediated hypersensitivity reaction, which leukocyte is activated? ________ to a base class may be assigned the address of a derived class object. In describing the problems created by the Articles of Confederation, George Washington said, ...we are one nation today and 13 tomorrow. Who will treat with us on such terms? Which of the following most accurately restates this idea? How does a roller coaster create the sensations of falling, and being thrown around? describe how crust forming on the surface of lava illustrates the principle that removing heat from a system may result in a change in state. 1.Describe at least three problems immigrants faced in American cities in the late 1800s. In the early 1900s, what is now known as "social casework" expanded from children's aid and charity organization societies to: Francesco Redi disproved the idea of spontaneous generation through an experiment involving _____.mud and frogswater and plantsmeat and flies In a series circuit, when you add more resistance, what will happen to the amount of current? What did Philadelphia and new Amsterdam have in common Simplify. 54+4(3412)2 Steam Workshop Downloader