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MAXImum [283]
3 years ago
9

{ 5x - y = 5 { 5x - 3y = 15 solve the system using substitution

Mathematics
2 answers:
Iteru [2.4K]3 years ago
8 0

Answer:

Not sure sorry,but can you please help me on the following:

Step-by-step explanation:

Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the squares share one side with the rectangle. The total area of the constructed figure is 120 cm2. What is the perimeter of the rectangle?

yulyashka [42]3 years ago
5 0

Answer:

Step-by-step explanation:

How nice question 7s it

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A. 1189<br> B. 28<br> C. 784<br> D. 891<br> E. 1059
ch4aika [34]

Answer:

Its E c;

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the value of the following function when x = 0
ki77a [65]

Answer:

-2

Step-by-step explanation:

Just walk your finger from left to right until you get to x=0 (the numbers on the horizontal axis). when you get there, find the y value (find how much you need to go up or down to get to where the function goes)

3 0
3 years ago
Helppppppppp i will give points
seraphim [82]
Pretty sure that would be 120. Since the angles of a triangle add up to 180, you just add 25 and 35 (makes 60) and subtract it by 180, leaving 120
7 0
3 years ago
PLEASE HLEP !!
Elina [12.6K]

Answer:

point D

Step-by-step explanation:

7 0
3 years ago
The molar mass of AlCl3 is 133.34 g/mol. How many molecules of AlCl3 are there in 2 g?
Mnenie [13.5K]

To solve this problem, we have to apply mole-concept to this and we would need the molar mass of AlCl3.  2g of AlCl3 contains 9.034*10^21 molecules.

<h3>Number of Molecules in 2g of AlCl3</h3>

The molar mass of AlCl3 is given as 133.34g/mol

Data;

  • mass = 2g
  • molar mass = 133.34g/mol

Using the mole concept, we can equate the molar mass to the number of molecules present in the entity.

133.34g = 6.023*10^2^3

If we equate this

133.34g = 6.023*10^2^3\\2g = x molecules\\x = \frac{2*6.023*10^2^3}{133.34} \\x = 9.034*10^2^1 molecules

From the calculations above, 2g of AlCl3 contains 9.034*10^21 molecules.

Learn more on mole concept here;

brainly.com/question/21150359

#SPJ1

5 0
2 years ago
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