Mathematics Middle School

True or False?

When rainfall increases, the water level in the lake goes up. Rainfall is the independent variable in this situation. (4 points)

True
False
Question 2 (4 points)
(07.07)
Diana can earn money for the tickets she sells. Which of the following statements describes the variables in this situation correctly? (4 points)

a
The amount of money earned is the independent variable because it affects the number of tickets sold.

b
The amount of money earned is the dependent variable because it affects the number of tickets sold.

c
The number of tickets sold is the independent variable because it affects the amount of money earned.

d
The number of tickets sold is the dependent variable because it affects the amount of money earned.

Question 3 (4 points)
(07.07)
Calvin's plane is flying at a speed of 600 miles per hour. If y represents the distance the plane has traveled and z represents the time it has spent traveling, which of the following equations shows the relationship between y and z? (4 points)

a
y = 600 + z

b
z = 600 + y

c
z = 600y

d
y = 600z

Question 4 (4 points)
(07.07)
It costs $3.56 to buy a pack of pencils. Which of the following equations shows the amount of money needed, x, to buy k packs of pencils? (4 points)

a
x = 3.56k

b
k = 3.56x

c
x = 3.56 + k

d
k = 3.56 + x

Question 5 (4 points)
(07.07)
Christina built a small hot air balloon and recorded the distance it traveled. The table below shows the vertical distance traveled (v) during the first 4 seconds after starting (s).

Elapsed Time
(seconds) Distance Traveled
(feet)
1 1.2
2 2.4
3 3.6
4 4.8
Which of the following equations represents the relationship between the distance traveled and the elapsed time? (4 points)

a
v = 1.2s

b
s = 1.2v

c
v = 1.2 + s

d
s = 1.2 + v

Answers

Answer 1
I think it is false

Related Questions

please help will mark brainliest! no links!

Answers

Answer:

b <3

Step-by-step explanation:

Whats is 7 = 12v - 24?

Answers

Answer:

To the nearest tenth: v = 2.6

To the nearest hundredth: v = 2.58

Fraction form = 31/12

Step-by-step explanation:

1. Add 24 to both sides to cancel it out on the right

7 = 12v - 24

+24          +24

2. Divide each side by 12

31 = 12v

31/12 = 2.5833333

12/12 = 1v = v

v = 2.583333

It’s V=31/12

(1). 7=12v-24 (12v is a variable so you move it left hand side and change its sign)

(2). 7-12v=-24 (7 is a constant so move it to the right hand side and change its sign)

(3). -12v=-24-7 (now calculate the difference -24-7)

(4). Now it’s -12v=-31, now after that divide both sides of the equation by -12

(5). So the answer is V=31/12

Which expression is equivalent to -3(2m-1) -n? 6m-n-3 6m-n+3 -6m-n-3 -6m-n+3

Answers

Answer:

-6m-n+3

Step-by-step explanation:

Answer:

I think I got it but dont think it's right but -6m-n+3

Step-by-step explanation:

So -3(2m-1) if you multiply-3 by 1 it will equal -3 so if you multiply it by 2 that equals -6 so then you have -6m-n-3 but If you dont thinks it's right dont awnser with my awnser

consider the functions [tex]f(x)=3+10x, g(x)=2^x and ,h(x)=5x^2.[/tex] which function will have a the greatest output when x=0

Answers

Answer: 5 i think

Step-by-step explanation:

Yea.....can sum1 help pls

Answers

Answer:

208

Step-by-step explanation:

8*8=64

9*8/2=36

36*4=144

144+64=208

have a nice day :)

Your answers 208 just took the test

Pls help One simple easy question

Answers

Answer:

c not hundred percent sure

Step-by-step explanation:

Answer:

c but some of them i dont remember ok

I need help now plz
the question is in the picture gl

Answers

She did make a square corner, it all adds up to same number
Yes she made a square!!!!!!!!!

The graph shows information about the lion population at a safari park. Lions were introduced in the park in 2010. In 2012, the park has a population of 32 lions. A year later, in 2013, the park has 128 lions. Write an exponential function that models this situation. Let X represent the number of years since 2010 and let f(x)represent the number of lions.

Answers

Answer:

never gonna

Step-by-step explanation:

give you up,

Let you down,

make you cry

Run around and desert you

PLEASE ANSWER PWEASE

Answers

the answer is d i think. i’m not sure tho
Answer Varified and you know that what they say about it and how much you have done for church

Can someone explain this to me?
-5 -5 -3 -3 -2 -2 -1

1. What is the mean?

2. What is the median?
3. What is the mode?
4. What is the range?

-8 -6 -4 -4 -3 -2 -1

5. What is the mean?
6. What is the median?
7. What is the mode?
8. What is the range?

Answers

1. (-4)
2. The median is the number in between the number line that is in the middle ( it goes least to greatest)(-4)
3. The mode it what number repeats ( -4)
4. The range is the subtracted greatest from the least (-1)
1. The mean is the average of those numbers. Add those numbers and divide it by how many numbers there are.
2. The median is the number in the middle. If there are two middle numbers, add those together and divide by two.
3. The mode is the number that repeats the most.
4. The range is the difference between the least and greatest number. Just take the greatest number and subtract it by the least number and you’ll have your answer.

hiii umm yeah i need help on this its about direct variation equations

Answers

Each 5 minutes represent 1 mile. This can be also referred as independent and dependent variables. It takes 5 minutes for 1 mile. Or T=5m (m=minutes) D=1

so 5 x 2 (5 minutes x 2) = 10 minutes and 10 minutes equal to 2 miles, each 5 minutes is another mile. For example, 60 minutes (1 hour) 60 divided by 5 = 12 so in 1 hour (60 mins) equal to 12 miles in total! hope this helps at least a bit! :)

Karl needs to build a stage that has an area of 84 square feet. The length of the stage should be longer than the width. What are the possible whole number measurements for the length and width of the stage?

Complete the table with possible measurements of the stage.

Answers

Answer:

84 = L x w

84 = 84 x 1

84 = 42 x 2

84 = 28 x 3

84 = 21 x 4

84 = 14 x 6

84 = 12 x 7

Step-by-step explanation:

Which expression can be simplified as
1
18?
?
-3
o (no)
0 (10)
0
(noje

Answers

The answer is (n^-3)^6
The fourth option
Step by step:
The answer is (n^-3)^6

The diagram is a model of festival grounds having three square stages and a triangular food court. The festival director wants to place a square booth in the included angle between the two smaller stages. Thus, he needs to know if the shape of the food court is a right triangle.
Determine the area of the food court.

Answers

Answer:

what kind of work is this

Step-by-step explanation:

WILL GIVE BRIANLIEST
The diameter of a dime is 17.9 millimeters. What is the area of one side of the coin? Show your work

Answers

Answer:

Step-by-step explanation:

In this case, it is 8.95. Step 2: Square the radius that you get. In this case, the answer is 80.1025.

Np for the help.

3. Write the following as an algebraic expression: Twice the cube of z .4. Write the following as an algebraic expression: The quotient of the sum of x plus 4 and 2

Answers

Answer:

im pretty sure its Z^3 & x+4/2

Step-by-step explanation:

HIII PLEASE HELP ITS 6 GRADE MATHS LOLL

Answers

Answer:

-5, -7, -4, -6, -10

Step-by-step explanation:

Hope this helps!

HELP HELP HELP :( I NEED HELP IM GONNA FAIL THESE QUESTIONS ARE HARD PLZ HELP

Answers

The answer would be number one trust me I did this on a piece of paper
The awnser is D,
Because when you to think about it remember how quarters work in currency,
So 4 quarters make a dollar, 0.25 -> 0.50 -> 0.75 -> 1

Two students determined the value of this equation as shown below.
2x – (3x + 5) + 2 = 5x – 14
[picture below]
Describe any errors made when solving the equation by Student A.
Describe any errors made when solving the equation by Student B.
Show a complete set of correct steps to determine the solution to the equation.

Answers

(you can do the first two parts with the help of the third part)

2x-(3x+5)+2=5-14

2x-3x-5+2=5-14 (distribute the negative sign)
-1x-3=-9 (simplify equation by adding/subtracting)
-1x-3=-9 (add 3 on both sides)
-1x=-6 (divide both sides by negative 1)
x=6

hope this helps! also you can download mathaway and photomath to help you with problems like these

please help
(a figure is made up of a square and two semicircles)

Answers

Answer:

73.132 is the perimeter

Step-by-step explanation:

The perimeter of the square is 32 because 8x4.

The perimeter of the semicircle is 20.566 and times by 2 as there are 2 is 41.132.

41.132 + 32 = 73.132

A regular pentagon with side length s has perimeter 5s. Dakota built a dog pen in her backyard for her dog's new puppies. The pen is shaped like a regular pentagon and has 40-inch sides.
What is the perimeter of the pen?
Write your answer as a whole number or decimal.

Answers

5(40) = 200
perimeter = 200

Gabby just joined a new yoga studio. The studio charges a monthly fee plus an extra fee for each class students attend. The monthly cost for attending c classes is 20.50+2c dollars. Gabby plans to attend 9 classes this month.
What price will Gabby pay if she attends 9 classes this month?

Answers

Gaby will pay $38.50
“$38.50” is how much gabby will pay.

complete the equation. explain how you got your answer

4/5 X 3/7 =?

Answers

Answer:

the answer simplified is 0.34

Step-by-step explanation:

Answer:

[tex]\frac{12}{35}[/tex]

Step-by-step explanation:

Multiply straight across.

[tex]\frac{4}{5} *\frac{3}{7} \\4*3 =12 \\5*7=35\\12/35[/tex]

plz answer! i need help soo bad

Answers

Answer:

c.64

Step-by-step explanation:

16x8=128

128/2=64

Answer:

64 feet

Step-by-step explanation:

8/2 = 4 inches

We can now multiply.

16 * 4 = 64

i need help 8th grade math

Answers

Answer:

the slope shows that the average rating increased 0.4 points per month

Step-by-step explanation:

the equation is written in slope-intercept form. aka y=mx+b. m represents the slope and b represents the y-intercept. therefore in the equation y=0.4x+3 the slope is 0.4

hope this made sense and helped you for future problems :)

The slope shows that the average rating increased 0.4 points per month

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

$4

Step-by-step explanation:

Pete and Teegan each put an amount of $P in a new bank account.

Teegan's account earns 2.75% simple interest, earned $2.20 in interest after one year.

Write p x 2.75/100 = 2.20 so p = 80$ and $80 in Pete's account earns 5% simple interest.

after one year Pete will earn as interest 80 x 5/100 = 4$

hey i can’t see the picture can you submit another one

Help please!!
Xxxxxxx

Answers

Answer:

B

Step-by-step explanation:

b is the answer iggggg

What is the area of the figure shown?

Answers

Step-by-step explanation:

[tex]3.5 \times 6 + (5 - 3.5) \times 6 \div 2 = \\ = 21 + 9 \div 2 = \\ = 25.5[/tex]

Answer:

25.5m

Step-by-step explanation:

square area: 6m*3.5m = 21m

Triangle height: 5m - 3.5m = 1.5m

Triangle area: [tex]\frac{1.5m*6m}{2}[/tex] = 4.5m

Total area: 21m + 4.5m = 25.5m

Question 13
Please help me

Answers

I’m pretty sure it is the third one
correct that is the answer to question 13

Reggie and Elena each had one cup of water during a break in the soccer game. They took the water from the same 1 -quart container. If they took two cups total from the full I-quart containerf how many ounces of water were left?

Answers

Answer: 16 ounces

Explanation:
There are 32 ounces in a quart and 8 ounces in a cup there were 2 cups taken out of the 1 quart
8x2=16
32-16= 16 ounces left in the quart
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