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Gelneren [198K]
3 years ago
11

In a controlled scientific experiment, the variable is manipulated by the researcher.

Mathematics
2 answers:
WARRIOR [948]3 years ago
5 0

Answer:

Step-by-step explanation:

Travka [436]3 years ago
3 0

Answer: correct??? (I don’t understand)

Step-by-step explanation:

a controlled experiment is when only one variable is changed, while the rest stays the same.

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Kryger [21]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Ivan and tanya share £150 in the ratio 4:1 how much more ivan gets compared to tanya
shusha [124]

Answer:

Given statement: Ivan and Tanya share £150 in the ratio 4:1

let the number be x.

Then, the share of Ivan be 4x and the share of Tanya be x.

From the given scenario,

the equation that would best represent the given will be;

4x+x =\£150

Combine like terms;

5x =\£150

Divide both sides by 5 we get;

\frac{5x}{5}=\frac{\£150}{5}

Simplify:

x =£30

Then,

the share of Ivan is, 4x = 4 \cdot 30 =\£120

and the share of Tanya is, x =£30

Therefore, £90 more Ivan gets compared to Tanya.

3 0
4 years ago
Read 2 more answers
100% of my grade plz help
Montano1993 [528]

Answer: for the box. x 5 / -2 / 2 / -1 / 0 / -3 / 3

                                    y 9 / -5 / 0 / 5 / -1 / 9 / 7 / y

Step-by-step explanation:

I hope it helped

3 0
3 years ago
Solve the inequality<br><br> n-9 &lt; 4
icang [17]

Answer:

<u><em>n=36</em></u>

<u><em></em></u>

Step-by-step explanation:

n/9=4

We simplify the equation to the form, which is simple to understand  

n/9=4

Simplifying:

+ 0.111111111111n=4

We move all terms containing n to the left and all other terms to the right.  

+ 0.111111111111n=+4

We simplify left and right side of the equation.  

+ 0.111111111111n=+4

We divide both sides of the equation by 0.111111111111 to get n.  

n=36

7 0
3 years ago
Find the solution to the equation:
Volgvan

Answer:

x = 1

Step-by-step explanation:

To find the solution to the equation given, we will follow the steps below:

2(3x-6)= -12+6

Open the bracket

6x - 12 = -12 + 6

6x - 12 =-6

Add 12 to both-side of the equation

6x -12 + 12 = -6 + 12

6x =6

Divide both-side of the equation by 6

6x/6 = 6/6

At the left-hand side of the equation, 6 will cancel-out 6 while at the right-hand side of the equation, 6 will be divided by 6

x = 1

3 0
3 years ago
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