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2 years ago

The single factor tested in an experiment is:

Mathematics

2 answers:

Slav-nsk [51]2 years ago

7 0

The single factor tested in an experiment is: THE VARIABLE.

Zepler [3.9K]2 years ago

3 0

Answer:

The answer is variable.

Step-by-step explanation:

The single factor tested in an experiment is - The variable

Variable is an element or factor that is meant to vary or change in an experiment. Variables are used in Algebra where they are used as a defining variable or 'x' to describe any number.

The variables can be - independent variables, dependent variables, constant variables etc.

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"On a map, 0.25 inches represents 1 mile. What is the area of a rectangle on the map that is 3.75 inches long and 2.25 inches wi

Vika [28.1K]

0.25 inches represents 1 mile

----------------------------------------------
Find 1 inch:
----------------------------------------------
1 inch represents 1 ÷ 0.25 miles
1 inch represents 4 miles

----------------------------------------------
Find 3.75 inches:
----------------------------------------------
1 inch represents 4 miles
3.75 inches represent 4 x 3.75 miles
3.75 inches represent 15 miles

----------------------------------------------
Find 2.25 inches:
----------------------------------------------
1 inch represents 4 miles
2.25 inches represent 4 x 2.25 miles
2.25 inches represent 9 miles

----------------------------------------------
Find Area:
----------------------------------------------
Area = Length x Width
Area = 15 x 9
Area = 135 miles²

----------------------------------------------
Answer: 135 miles²
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6 0

2 years ago

Read 2 more answers

A zookeeper is monitoring the population of birds. The flock needs to have exactly three times more females than males to thrive

KIM [24]

Answer:

The constraints are

$0 < x\leq 20$ and $0 < y\leq 60$

Step-by-step explanation:

Let

x ----> represent the number of male birds

y ----> represent the number of female birds

we know that

The flock needs to have exactly three times more females than males to thrive

$y=3x$ ----> equation A

The zoo only has room for a maximum of 20 male birds

$0 < x\leq 20$ ----> inequality B

we know that

The maximum number of male birds is 20

For x=20

substitute in the equation A

$y=3(20)=60$

The maximum number of female birds is 60

$0 < y\leq 60$ ----> inequality C

therefore

The constraints are

$0 < x\leq 20$ and $0 < y\leq 60$

4 0

2 years ago

You and a classmate have a bug collection for science class. You ﬁnd 5 out of every 9 bugs in the collection. You ﬁnd 4 more bug

FrozenT [24]

Answer:

The total number of bugs in the collection is 36

Step-by-step explanation:

Let

x -----> the number of bugs that you find out

y ----> the number of bugs that the classmate find out

we know that

$\frac{x}{y+x} =\frac{5}{9}$ -----> equation A

$x=y+4$ ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (20,16)

The total number of bugs in the collection is

$(20+16)=36\ bugs$

5 0

2 years ago

Mrs. Kermit has 29 markers. She gives 12 markers to Mr. Cooke and divides the rest among 5 other teachers. If each of the teache

romanna [79]

Answer: 2 markers.

Step-by-step explanation:

1. You know that she gives 12 markers to Mr. Cooke, then the rest among is:

29 markers-12 markers=17 markers

2. She divides the rest among 5 other teachers and each one of them get the same number of markers. So, you need to divide 17 markers by 5 teachers as following:

17 markers/5=3.4 markers

3. But the number of marker each one teacher has can't be a decimal number, so this number must be: 3 markers for each teacher.

3. The number of markers that will be left over is:

17 markers-(5*3 markers)=2 markers

8 0

2 years ago

Lenmana started studying how the number of branches on her tree grows over time. The number of branches increases by a factor of

Ad libitum [116K]

Answer:

$N(t) = 48 * 11/6^{\frac{t}{3.5} }$

Step-by-step explanation:

The formula for <u>exponential growth</u> is y = ab^x.

To write this equation, we know it has to start with 48 (which is the variable a). We need to add the rate of growth. This is 11/6 (which is variable b). But we also need to account for the "every 3.5 years" part, so divide the x as an exponent by 3.5.

N(t) = 48 * 11/6^(t/3.5)

This equation is easy to test, and it's a good idea to test it after you write it. For example, after 3.5 years we know that it should have 48*11/6 branches. Does our equation work? Yes.

7 0

2 years ago