Step-by-step explanation:
I don't know the answer to this one so could someone please tell me
Thanks
Answer:
4.87500
Step-by-step explanation:
hope this helps
Answer:
x=
3
/2
Step-by-step explanation:
12(5x−4.5)=36
(12)(5x)+(12)(−4.5)=36(Distribute)
60x+−54=36
60x−54=36
Step 2: Add 54 to both sides.
60x−54+54=36+54
60x=90
Step 3: Divide both sides by 60.
60x
60
=
90
/60
x=
3
/2
Answer:
The mass of sun is 333333.33 times greater than the mass of earth
Step-by-step explanation:
Given as :
The mass of the sun = 
kg
The mass of earth = 
kg.
Let The mass of sun is x times greater than the mass of earth
i.e The mass of sun = x × The mass of earth
or, kg = kg × The mass of earth
Or, x = 
Or, x = 
∴ x = 333333.33
So, The mass of sun = 333333.33 × The mass of earth
Hence, The mass of sun is 333333.33 times greater than the mass of earth Answer
For this problem I would change:
2x + 3y = 25 into
-2x - 3y = -25
Then, I would add up both equations by lining them up top of another.
5x + 3y = 31
+ -2x - 3y = -25
3x = 6
x = 2
Now that you have x, solve for y.
5x + 3y = 31
5(2) + 3y = 31
10 + 3y = 31
3y = 21
y = 7
So, x is 2 and y is 7.
Check to see if the values are correct by plugging them into the other equation.
2x + 3y = 25
2(2) + 3(7) = 25
4 + 21 = 25
25 = 25
Since the values are correct, the solution to this problem is A (2, 7).
