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2 years ago

Some factors that affect the rates of change of all reactions

Mathematics

2 answers:

Sonja [21]2 years ago

8 0

I think it is D because all of them have a reaction

ivann1987 [24]2 years ago

3 0

I’m pretty sure it’s D because all of the factors because if more than one of the choices applies to the question, then it’s all of the above.

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Solve for x. Please look at the picture and answer it. Thank you.

SVEN [57.7K]

Answer:

$\tt x=21$

Step-by-step explanation:

$\tt 45+63+4x-12=180$

$\tt \cfrac{4x}{4} =\cfrac{180-96}{4}$

$\tt x=21$

7 0

2 years ago

Stephen, Nick and Brian share £90 in a ratio 1:2:2. How much money does each person get?

malfutka [58]

Answer:

Stephen: £36

Nick: £36

Brian: £18

Step-by-step explanation:

2+2+1= 5

90/5= 18

18x2= 36

18x2=36

18x1=18

Hope it helps

4 0

3 years ago

Please help me find n. 1/3=n+3/4

raketka [301]

Answer:

-5/12

Step-by-step explanation:

Let's solve your equation step-by-step.

1 /3 = n + 3 /4

Step 1: Flip the equation.

n + 3 /4 = 1/ 3

Step 2: Subtract 3/4 from both sides.

n+ 3 /4 − 3/4 = 1/ 3 − 3 /4

n= −5 /12

7 0

2 years ago

A bag contains 6 blue and 4 red marbles. You pick out a marble, record its color,

Archy [21]

Answer:

times you have to remove a red marble

Step-by-step explanation:

8 /30/=3.75

=3.75

5 0

3 years ago

Need help please assist me find the area of a regular hexagon

garri49 [273]

Answer:

The area of the regular hexagon is $166.3\ units^{2}$

Step-by-step explanation:

we know that

The area of a regular hexagon can be divided into 6 equilateral triangles

step 1

Find the area of one equilateral triangle

$A=\frac{1}{2}(b)(h)$

we have

$b=r=8\ units$

$h=4\sqrt{3}\ units$ ----> is the apothem

substitute

$A=\frac{1}{2}(8)(4\sqrt{3})$

$A=16\sqrt{3}\ units^{2}$

step 2

Find the area of 6 equilateral triangles

$A=(6)16\sqrt{3}=96\sqrt{3}=166.3\ units^{2}$

7 0

2 years ago