Answer: 3
Step-by-step explanation:
First, we will write a mathematical equation for the phrase given.
-> Let n be "a number"
four subtracted from twice a number is two
four subtracted from twice a number = 2
(twice a number) - 4 = 2
2n - 4 = 2
Now, we will solve this equation by isolating the variable.
2n - 4 = 2
2n = 6
n = 3
<em>Read more about </em><em>algebraic equations </em><em>here:</em>
<em>brainly.com/question/27791850</em>
Answer: 35 pies
Step-by-step explanation:
Ken can bake 1 pie with each additional cup of sugar he buys. 1 pie =1 cup
4 + x = y
Where;
x= additional pies
y= total pies
If 1 cup= 1 pie; then 31 cups =
31 cup × 1 pie/1 cup = x
:. x= 31 pies
y= x + 4
y= 31+4 = 35
Answer:
y=120x
Step-by-step explanation:
You can just divide all of the points (y/x) and they all equal to 120. And when you add it to the equation its y=120x
Answer: what missing exponent?
Step-by-step explanation:
If the solution is blue-green, this indicates that some copper is still present in the solution and that not all of it has precipitated. Expect it to be too low because you will have less mass.
With very few exceptions, all copper(I) (cuprous) compounds are diamagnetic and colorless. Cu2O, Cu2Cl2, and cuprous sulfide are a few of the significant commercial compounds of copper(I) (Cu2S).
The molar mass of the element copper is determined by looking at its average atomic mass, which is 63.55 AMU on the periodic table. Since it is also our molar mass, we will now put it in a different unit: grams over moles (63.55 gmol). That is copper's molar mass.
If the solution is blue-green, there is still copper in the solution and not all of it has precipitated. Because you will have less bulk, anticipate it to be too low.
To know more about copper, refer to this link:
brainly.com/question/1543891
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