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daser333 [38]
3 years ago
14

How can the rate of a reaction be decreased?

Mathematics
2 answers:
Hoochie [10]3 years ago
5 0

Answer:

When you lower the temperature, the molecules are slower and collide less. That temperature drop lowers the rate of the reaction.

Studentka2010 [4]3 years ago
4 0

Answer:

If a reaction neeeds to be decreased it will be lowering the number of reactants

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Half a pepperoni pizza plus three fourths of a ham and pineapple pizza contains 765 calories 1/4 of a pepperoni pizza plus a who
yulyashka [42]

Answer:

Correct choice is D (In a whole pepperoni pizza are 660 calories, in  in a whole ham and pineapple pizza are 580 calories).

Step-by-step explanation:

Let x calories be the number of calories a whole pepperoni pizza contains and y calories be the number of calories a whole ham and pineapple pizza contains.

1. If half a pepperoni pizza plus three fourths of a ham and pineapple pizza contains 765 calories, then

\dfrac{1}{2}x+\dfrac{3}{4}y=765.

2. If 1/4 of a pepperoni pizza plus a whole ham and pineapple pizza contains 745 calories. then

\dfrac{1}{4}x+y=745.

3. Multiply each equation by 4 and get a system of two equations:

\left\{\begin{array}{l}2x+3y=3060\\x+4y=2980\end{array}\right.

From the second equation x=2980-4y, then

2(2980-4y)+3y=3060,\\ \\5960-8y+3y=3060,\\ \\-8y+3y=3060-5960,\\ \\-5y=-2900,\\ \\y=580.

Then

x=2980-4\cdot 580=2980-2320=660.

6 0
3 years ago
(Need help) (ASAP) <br><br> Point: 18
Anastasy [175]

Answer:

10

Step-by-step explanation:

7 0
2 years ago
Please help solve for x
Ludmilka [50]

Answer:

8.49

Step-by-step explanation:

there is a little formula related to the famous formula of Pythagoras.

it says that the height of a triangle is the square root of the product of both segments of the baseline (the segments the height splits the baseline into).

so, x is actuality the height of the triangle.

x = sqrt(3×24) = sqrt(72) = 8.49

7 0
3 years ago
Ryan earn $376 by working 4 days. If he earned the same amount each day, how much he earn working 5 days?
Over [174]
$469.


376/4 = 94.

Then add that too 346

94 + 346 = 469

3 0
3 years ago
Read 2 more answers
If the density of a 35.cm3 block of wood is .85 g./ml calculate the woods mass.
Reil [10]
So the equation you're going to be using is mass = density x volume 
So the volume of your block is 35cm^3, and your density is .85g/ml 

so your equation would be 

mass=.85g/ml x 35cm^3 

your final answer is 29.75g/cm^3

Hope this helps :) 
6 0
3 years ago
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