Mathematics Middle School

Different rose bushes are grown in a g reenhouse for two months. The number of flowers on each bush is counted at the end of the experiment
. 1. Independent Variable ________________________________________________________________________________
2. Dependent Variable ________________________________ ________________________________________________
3. Control Variable ________________________________________________________________________________

Answers

Answer 1
1. Rose bushes
2. Number of flowers on each bush
3. None, unless there is an original rose bush they used before the experiment

Related Questions

If 3h = 12, then what is the value of 4(10 – h)?

Answers

3h = 12
h = 12/3
h = 4

so if h = 4....
4(10 - h) =
4(10 - 4) =
4(6) =
24 <===
The answer is 24 it's should be

eighteen and nine tenths is 2.6 less than a number. find the number.

Answers

18(9/10) + 2.6 = 18.8

Suzi starts her hike at -225 feet below sea level. When she reaches the end of the hike, she is still below sea level at -127 feet. What was the change on elevation from the beggining of Suzi's hike to the end of the hike?

Answers

Positive 98 is the difference. From -225 to 127 is getting closer to positive numbers.

The change in elevation from the beginning of Suzi's hike to the end is 98 feet, as calculated by the difference in starting and ending elevations: (-127) - (-225) = 98 feet.

To calculate the elevation change, we subtract the elevation at the start of the hike from the elevation at the end of the hike. Suzi started at -225 feet below sea level and ended at -127 feet below sea level.

To find the change in elevation, we perform the following calculation:

Write down the starting elevation: -225 feet.

Write down the ending elevation: -127 feet.

Subtract the starting elevation from the ending elevation: (-127) - (-225).

Simplify the equation by adding: -127 + 225 = 98 feet.

Therefore, the change in elevation from the beginning of Suzi's hike to the end is 98 feet. The positive result indicates an increase in elevation, even though Suzi is still below sea level at the end of her hike.

Solve for x
3j = 4kx + 7mx + n

Answers

3j = 4kx +7mx +n
Reorder so the common terms are on one side.
4kx +7mx = -n +3j
Factor x out of 4kx +7mx
x (4k +7m) = -n +3j
Divide each term by 4k + 7m and simplify.

x = 3j -n /
     4k +7m

Answer:

[tex]x=\frac{3j-n}{4k+7m}[/tex]

Step-by-step explanation:

We have the expression [tex]3j=4kx+7mx+n[/tex] and we have to solve for x, this means that we have to clear x.

Then first we are going to subtract n in both sides of the equation,

[tex]3j=4kx+7mx+n\\3j-n=4kx+7mx+n-n\\3j-n=4kx+7mx[/tex]

Now in the right side we can apply common factor x.

[tex]3j-n=(4k)x+(7m)x\\3j-n=x(4k+7m)[/tex]

For the last step divide both sides of the equation in (4k+7m),

[tex]3j-n=x(4k+7m)\\\\\frac{3j-n}{4k+7m}=\frac{x(4k+7m)}{(4k+7m)} \\\\\frac{3j-n}{4k+7m}=x[/tex]

Then,

[tex]x=\frac{3j-n}{4k+7m}[/tex]

Please help! #20] math problem is with photo. (Math) (10 points)

Answers

First, we want to find the difference in monthly fee and per minute costs.

20 - 15 = 5
0.25 - 0.05 = 0.20

So basically we now know that we need to make up for 5 dollars of monthly cost difference, and for every minute we talk with the two plans at the same time, it's different by 0.20.

Now, we just can divide 5 dollars by the difference of 0.20, which you would get 25 minutes from.

So you would have to talk for 25 minutes for the two plans to be the same cost.

Assuming that you used them at the same time, not just used B or A.

Answer:

25 mins

Step-by-step explanation:

Which gives the solution of this inequality? 7m − 2 ≥ 61 options
A. m < 9
B. m > 9
C. m ≥ 9
D. m ≥ 8.4
E. m > 8.4

Answers

7m - 2 ≥ 61
      +2    +2

7m  ≥ 63

m ≥ 9 
7m − 2 ≥ 61 
7m − 2 + 2 ≥ 61 + 2
7m  ≥ 63
7m/7  ≥ 63/7
m ≥ 9

answer 
C. m ≥ 9 

Calculate the volume of the cylinder. Round your answer to nearest hundredth. 2cm is the radius and 6cm is the height

Answers

V =  Volume
r = radius 
h = height 

[tex] V = \pi r^2h [/tex]
Now just plugin your numbers
[tex] V = \pi 2^26 [/tex]
V = 75.398
V = 75.40

V=(pi)r^2h
V=(pi)(2)^2(6)
V=75.40 cm ^3

74 – (25 + d) + ¾ d = 44 please show your work. Solve for d

Answers

Your answer is: d=20.

Here is my work:

74 – (25 + d) + ¾ d = 44
=−d/4+49=44
=d=20

Answer is: d=20.

Hope it helps

55 miles per hour write a algebric expression to show how far the car will travel in a certain number of hours

Answers

55miles in an hour  times x( # of hours that are unknown)
Final answer:

The algebraic expression for the scenario is 'd = 55t', where 55 (miles per hour) is the constant, and 't', which represents time in hours, is the variable. This expression is used to calculate the distance traveled by a car.

Explanation:

The subject of your question is algebra, particularly involving the concept of linear equations. In this scenario, you're looking to determine how far a car will travel given a certain speed and number of hours. Your constant in this case will be the speed of the car, which is 55 miles per hour. The variable is the time in hours, which we can denote by 't'. Hence, the algebraic expression representing this scenario would be d = 55t where 'd' represents the distance traveled by the car. The distance is calculated by multiplying the constant speed by the variable time.

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The complete question is here:

A car is traveling at a speed of 55 miles per hour. You want to write an algebraic expression to show how far the car will travel in a certain number of hours. What will be your constant? your variable?

Solve: x − 2/3 = 6 1/3

Answers

The answer to this equation is x=21

A number is multiplied by 4, and then 6 is added to the product. The result is 18. What is the number? I already know that the answer is 3 but I have to check my answer. How do I check it?

Answers

You can check your answer by multiplying 3 with 4 and then add 6  to the product. Then your result will be 18.
Final answer:

The student can check the accuracy of their answer by substitifying their solution back into the equation. If both sides of the equation are equal after the substitution, then the solution is correct and 4 * 3 + 6 does in fact equal 18 in this case.

Explanation:

The subject of your question is to solve a simple equation and you want to check your answer. The equation you're talking about can be expressed as 4x + 6 = 18, where x is the number you're trying to find. You said you believe x = 3, and we can check that by substituting 3 for x in the equation and seeing if both sides match.

On the left side of the equation, 4x + 6 would become 4 * 3 + 6, which equals 12 + 6 = 18. The right side of the equation is also 18, so your answer of x = 3 is correct!

Substituting your answer back into the equation is a solid strategy to check your answers in mathematics.

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a digital scale measures weight to the nearest 0.2 pound. which measurement shows an appropriate level of precison for the scale?

A. 130.4 pounds

B. 125 pounds

C.120 pounds

D. 124.75 pounds


Answers

I think it would be A. 130.4 if it is measuring to the nearest 0.2 pound

Answer:

130.4 pounds

Step-by-step explanation:

The digital scale is measuring weight to the nearest 0.2 pounds, so basically the digital scale would show you the weight of an object that is a multiple of 0.2.

Talking about precision, precision tells us how accurate is the measured value or how close is the measured value to the actual value.

Here, scale is measuring to the nearest 0.2 pounds, so out of the given values the measurement that shows an appropriate level of precision for the scale is 130.4 pounds.

Round 43.786 to the nearest hundredth

Answers

43.786

Since 6 rounds up:

43.79

Hope this helps!
The hundereths at are on the right side 43.790 next to the ones place value. Witch is before the desimal

Circle the ways to write the number shown by the model 4 tens 6ones 40+6 64 6 tens 4 ones 60+4ones 46

Answers

Final answer:

Applying Place values, the ways to write the number shown by the model are 40+6, 64, and 6 tens 4 ones.

Explanation:40+6: In this representation, the tens digit (40) is added to the ones digit (6), resulting in the number 46.64: This representation directly shows the number with a tens digit of 6 and ones digit of 4.6 tens 4 ones: This representation specifies the number of tens and ones, with 6 tens and 4 ones making up the number 64.

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A sapling, or young tree, is planted in a garden. After 3 years, it is 180 cm tall. After 7 years, it is 368 cm tall. How tall will the tree be after 10 years?

Answers

548cm tall because if you add 180 to 368 it is 548.

Write the number that has 1 hundred 14 tens 6 ones

Answers

246 because 1 hundred = 100, 14 tens = 140, 6 ones = 6

What's the answer to this question ? I've been really confused for the past 20 minutes

Answers

the hint tells you s is sqrt(a)

 the question tells you a = 570025

so side = sqrt(570025)

 plug that into your calculator to get:

755 feet

21) Each side is 755 in
To do this all you'll need to do is find the root of 570,025, which is 755

22) Each side is 25 in
Again, you'll need to find the square root of 625, which is 25

Ellen has 60 feet of craft wire she plans to cut it into pieces that are 3 meters long what is the greatest number of 3 meter prices Ellen can cut

Answers

She can cut 20 Meters long!

Are my answers correct???

Answers

All of them are wrong except number 12. The top left is 7, the top right is 26, the bottom left is 4. And a little hint, do what's in the parentheses first. Hope I helped!!
31+(24-19)-8*4
31+ 5-8*4
31+5-32
37-32=5
Number 9 is wrong. the correct answer is 5.

10. 48 -9 * 2-4
48 - 18 -4
30-4= 26
Number 10 is wrong , the correct answer is 26.

11. 56÷ ( 10-5+3*3)
10-5+9
5+9 =14

56÷ 14 =4
Number 11 is wrong. the correct answer is 4.

12. 16-12=4

4÷2 * 5*5
4÷2 * 25
2*25 = 50

Number 12 is correct.

A gram of gasoline produces 45.0kj of energy when burned. gasoline has a density of 0.77/gml . how would you calculate the amount of energy produced by burning 46.l of gasoline? set the math up. but don't do any of it. just leave your answer as a math expression. also, be sure your answer includes all the correct unit symbols.

Answers

Final answer:

To calculate the amount of energy produced by burning 46.1 mL of gasoline, you can use the formula: Amount of energy = (Density of gasoline) x (Volume of gasoline) x (Energy produced per gram). Plug in the values and include the correct unit symbols (g/mL, mL, kJ) in your answer.

Explanation:

To calculate the amount of energy produced by burning 46.1 mL of gasoline, you can use the following formula:

Amount of energy = (Density of gasoline) x (Volume of gasoline) x (Energy produced per gram)

Plugging in the values:

Amount of energy = (0.77 g/mL) x (46.1 mL) x (45.0 kJ/g)

This gives us the math expression:

Amount of energy = 0.77 x 46.1 x 45.0 kJ

Make sure to include the correct unit symbols (g/mL, mL, kJ) in your answer.

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Pete owes his brother 35 dollars from 5 weeks of borrowing money what is the mean Pete borrowed each week

Answers

the answer is 175 dollars

Estimate the value of the expression by rounding each number to the given place value. 68 – 29; tens A. 30 B. 35 C. 40 D. 50

Answers

68 rounds up to 70
29 rounds up to 30

So, 70-30 = 40
C. 40 is our answer! Hope I helped :)

a garden hose faucet is able to fill a gallon container in 20 seconds a homeowner accidentally left his hose on for a full day how many gallons per day can a hose release

Answers

the hose releases 1820 gallons of water
I got 4,300 gallons in one day.

What I did was turned 24 hrs in seconds (which was 86,000) then divided that by 20.

60 is ? Times as many as 10

Answers

60 is 6 times as many as 10, because 60 is 10 times 6.
60 is 6 times 10 
hope it helped

Given that 41 to the second power= 1681 find the square of 410

Answers

Final answer:

The square of any number is simply that number multiplied by itself. Thus the square of 410 is 410 multiplied by 410, which equals 168100.

Explanation:

The concept being asked here is the squaring of exponentials. 'To square' a number encompasses multiplying that number by itself. Hence 41 to the second power, or 41 squared, equals 1681 as the question states. By the same logic, to find the square of 410, we would multiply 410 by itself. That calculation will give the result as 168100. The square of 410 is 410 multiplied by 410, which equals 168100. Thus, the square of 410 equals 168,100.

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the larger of two numbers is twice the smaller number. if 12 is subtracted from the larger number, the result is 7 more than the smaller number. find the numbers

Answers

The larger number (L) = 19 the smaller number (S) = 9.5

L - 12 = 7 + S
L = 19 + S
L = 19

L = 2(S)
19 = 2(S)
9.5 = S

What is 77,098 rounded to the nearest thousand

Answers

77098 rounded to the nearest thousands equals to 77,000

hope this helps
77,000 would be 77,098 rounded to the nearest thousand because 98 would be rounded to 100 but 100 is less than 500 and it would have to be 500 to go up to 78,000. So your answer is 77,000.

Which of the following is an example of function notation?
A.Distance + time = 800
B.Distance x time = 800
C.Distance/time = 800
D.Distance(time) = 800

Answers

Your answer is going to be B.

Please help me out here

Answers

9= when you simplify it i believe that gets you to you final answer.

the product of x and 5.2 is 104. Find the value of x

Answers

The answer for x is 20. I hope I helped!

If product of x and 5.2 is 104 then the value of x is 20.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given that  product of x and 5.2 is 104

We have to find the value of x

product of x and 5.2 is 104 can be mathematically written as below

5.2x=104

To find value of x

divide both sides by 5.2

x=104/5.2

x=20

Hence, if product of x and 5.2 is 104 then the value of x is 20.

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