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zavuch27 [327]
3 years ago
12

Please Answer Brainliest and 100 PTS!!!

Mathematics
1 answer:
AleksAgata [21]3 years ago
4 0

Answer:

The masses are always equal

Step-by-step explanation:

The law of conservation of mass states that in a reaction the mass of the reactants is equal to the mass of the products. So what we use as reactants must come out as products.

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The selling price of a refrigerator, is $739.20. If the mark up is 20% of the dealers cost , what is the dealers cost of the ref
Lisa [10]

Mark up percentages are used to increase the prices of items

The dealers cost of the refrigerator is $591.36

<h3>How to determine the dealer cost</h3>

Represent the dealer cost of the refrigerator with x.

Given that the markup is 20% and the selling price of the refrigerator is $739.20, then we have the following equation

x = 739.20 * (1 - 20%)

Evaluate the product

x = 591.36

Hence, the dealers cost of the refrigerator is $591.36

Read more about mark ups at:

brainly.com/question/19104371

5 0
2 years ago
If f(x) =3x-5 them find values of f(3) and f(-7). please explain step by step​
LenKa [72]

Answer:

f(3) = 4

f(-7) = -26

Step-by-step explanation:

Hi there!

f(x) =3x-5

To find f(3), replace every x with 3:

f(3) =3(3)-5\\f(3) =9-5\\f(3) =4

Therefore, f(3)=4.

f(x) =3x-5

To find f(-7), replace every x with -7:

f(-7) =3(-7)-5\\f(-7) =-21-5\\f(-7) =-26

Therefore, f(-7)=-26.

I hope this helps!

8 0
2 years ago
In order to circumscribe a circle on a triangle, which line must you construct?
SIZIF [17.4K]
<span>D) perpendicular bisector <em>I believe.
</em></span>
6 0
3 years ago
Find the equation of the line using the exact numbers
Anit [1.1K]

Answer:

y = -0.25x - 6

Step-by-step explanation:

You can either just read off the slope m = -0.25 and the intersection with the vertical n = -6 or you form a system of equations from points you choose on the graph. For example:

(0,-6);(4,-7)

The general equation for a line:

y = m*x + n

The two points on the graph form a system of two equations:

1. -6 = m*0 + n

2. -7 = m*4 + n

You can read off n right away fro equation 1:

n = -6

Plugging n into equation 2:

-7 = m*4 - 6 => -1 = m*4 => m = -1/4

3 0
2 years ago
Read 2 more answers
What is the value of 5.4?
Galina-37 [17]
The value is .54 hope this helped
5 0
2 years ago
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