Answer:
Moles Cu = 300 g x 1 mol Cu/63.55 g = 4.72 moles Cu
Moles Zn = 4/15(4.72) = 1.26 moles
mass Zn = 1.26 moles x 65.38 g/mol = 82.3 g
Simplify 3.1n - 1.1n
Answer:
2n
Step-by-step explanation:
The solution is, the value of subtraction is 2n.
What is Subtraction?Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-) and is the method of calculating the difference between two numbers.
here, we have,
given expression is,
3.1n - 1.1n
we have to solve it, by subtraction.
now, we have,
3.1n - 1.1n
= (3.1 - 1.1 ) n
= 2 * n
=2n
at first, we take n common from both terms, then subtract 3.1 from 1.1, which is 2, then multiply the result 2 with n, finally we get the answer as 2n.
Hence, The solution is, the value of subtraction is 2n.
To learn more on subtraction click:
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HELP ASAP PLS! math, multiple choice!! ALL THAT R CORECT
Answer:
The 1st, 2nd, and 3rd are correct.
Step-by-step explanation:
The dimensions are in fact 3*2*2 1/2. If you count it up, that is correct.
The volume is 15 cubic inches. The answer to 3*2*2 1/2 is 15.
The third is given. If you double the size of each unit, you double the size of the prism.
Hope that this helps!
guys need help asap plz ill give brainliest to first person that is correct. you put the answer for 1c and 2 below. I just need the answers plz help. AND DONT ANSWER FOR POINTS OR I WILL REPORT YOU. please i beg you i have lost hundreds of points because of people who do that.
Box A is 12 inches by 18 inches by 24 inches. Box B is 12 inches by 12 inches by 30 inches. In cubic inches, how much greater is the volume of Box A?
Answer:
Box A's volume is bigger by 864 cubic inches
Step-by-step explanation:
12 × 18 × 24 = 5184
12 × 12 × 30 = 4320
Then we subtract. 5184 - 4320 = 864
hel0 me I will mark brainliest
Answer:
-2 < -1 1/2 < 1/2 < 1 1/2
This may be correct, we are learning the same thing in our own classes!
help me plz! thx sooo much! =D
Answer:
X Y
1 25
3 17
4 13
6 5
Step-by-step explanation:
All we need to do is substitute the x values into the equation and we will find the y values!
HELLLLLLLLLLLLLLLPPPPPPPPPPPPPPP MMMMMMMMMMMMMMEEEEEEEEEEeee.....
I think the answer is 100%
Price in the sale:
15% of $420 is $63.
After the sale:
Price went up again by 15%, making it $420 again.
Answer:
100%? It is 100% of its original price because it is the same
Answer:
100%
Step-by-step explanation:
trust
This is worth 15 points if you show work you will get the Brainliest answer if your unable to show work type it for your explanation plz ( no links )
for each question i post the points will get higher
Answer:
A
Step-by-step explanation:
Answer:
finding half of the area of the trapezoid
Step-by-step explanation:
when you look closely you'll see that the trapezoid is just to of the original triangles stacked on top of each other. if you divide the area of the trapezoid by half you would end up getting the area of the original triangle.
B. Now, assume that all of these circles have a radius of two. Then, calculate the ratio of a proximate circumference to the diameter.
Answer:
I think b is the answer hopefilly
please actually answer and I will give brainiest if it's right
Answer: B.) exactly 25
Step-by-step explanation:
if you repeat 300 times then 300 / 12 is 25.
it is a forsure 25 times so exactly 25 should be correct
The population of a town was 9000 people (in year "0"). The population began to decrease by 3% per year. State the number of WHOLE years it would take for the population to fall below 4000 people.
Answer:model y = 720,500(1.022)^ , where x is the number of years ... starting value growth ratio b) What would the population be in 2000 if the growth continues at the same ... 3) A population of beetles is growing each month at a rate of 5%.
Jenna's recipe calls for 1/2 cup of flour. She only has a 1/4 cup measure. Which equivalent answer shows the amount of flour she can use for this recipe? Answers:
A.1/4
B.2/6
C.2/4
D.3/4
Answer: 2/4
Step-by-step explanation: To find the equivalent fraction, multiply the numerator and denominator.
(Example is in image)
In your question, the choices are 1/4, 2/6, 2/4 and 3/4.
In my image, I got 2/4.
Hence, 2/4 is your answer.
Let my know if you have any questions.
~ Lily, from Brainly.
Nathena needs to buy a fence to put around her rectangular yard for her dog. Nathena forgot the width of his yard, but knows the legth is 30 yards. Her husband told her to buy 180 yards of fence. What is the greatest possible width for Nathena's yard?
Answer:
The real answer is 6
Step-by-step explanation:
Fairly simple. You know the length and the area, but you don't know the width. So your equation looks like this: 30 x ? = 180. But to figure out the width, you change the position of the numbers in the equation like this:
180 ÷ 30 = ?. Then you solve. 180 ÷ 30 = 6. If you want to double check your answer, you can plug in your answer to your original equation, 30 x 6 = 180.
Hope this helps!
James determined that these two expressions were equivalent expressions using the values of x = 4 and x = 6. Which statements are true? Check all that apply.
Ο 7 x + 4 and 3 x + 5 + 4 x - 1 When x = 2, both expressions have a value of 18.
Ο The expressions are only equivalent for x = 4 and x = 6.
Ο The expressions are only equivalent when evaluated with even values.
Ο The expressions have equivalent values for any value of x.
Ο The expressions should have been evaluated with one odd value and one even value.
Ο When x = 0, the first expression has a value of 4 and the second expression has a value of 5.
Ο The expressions have equivalent values if x = 8
Answer:
Ο 7 x + 4 and 3 x + 5 + 4 x - 1 When x = 2, both expressions have a value of 18.
Ο The expressions are only equivalent when evaluated with even values.
pls help and explain.
Answer:
b,d, and e
Step-by-step explanation:
because if you think about it, it can only hold 2:3 as a ratio. so if you do the first one as 2 then the second on would have to be 1 greater than the first number.
Answer:
a) adding two circles on the left and a square on the right.
Step-by-step explanation:
on the right, there is a square and a triangle
on the left, there are two circles and a triangle
both sides have a triangle so you don't need to worry about that
to balance the hanger, add what is missing:
the left is missing two circles
the right is missing a square
therefore, add 2 cicles to the left and a square to the right
Please put Step by step!
(5+4 2) divided by 3•6
The 2 is an exponent or a thing above a number
Plz help someone.
The question is: Is it Additve relationship or a Proportional relationship
Answer:
proportional relationship
Step-by-step explanation:
its proportional because it crosses through the axis :3
What inequality is graphed below?
Answer:
the secound one
Step-by-step explanation:
Answer:
x<7
Step-by-step explanation:
Open dot-means that number 7 is not included and the arrow is facing the left side so, x has to be less than 7.
What is the horizontal or vertical distance between the points (4 -11) and (15, -11)?
A. vertical distance of 19 units
A. vertical distance of 19 units
B.horizontal distance of 0 units
B. horizontal distance of 0 units
C. horizontal distance of 11 units
C. horizontal distance of 11 units
D.vertical distance of 11 units
D. vertical distance of 11 units
WHAT VARIES MORE 6.6 OR 4.3: NO LINKS
Answer:
what exactly do you mean by that?
Step-by-step explanation:
**i promise to go back and provide a real answer** (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
Write sixty-five hundredths as a decimal form.
The statement 'sixty-five hundredths' in the numerical decimal form will be 0.65.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The decimal number is the combination of an integer number and part of a rational number. The rational number is greater than zero but less than one.
And we know that the ration part is also known as the decimal part.
The statement 'sixty-five hundredths' in decimal form is written as,
⇒ 0.65
The statement 'sixty-five hundredths' in the numerical decimal form will be 0.65.
More about the Algebra link is given below.
https://brainly.com/question/953809
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Please help me, there are 4 questions here.
Place the samples in order from the sample with the greatest variation to the sample with the least variation.
a sample of
20 women
a sample of
5 women
a sample of
45 women
a sample of
60 women
Answer: The answer is 60, 45, 20, then 5.
Step-by-step explanation:
The variance would increase the bigger the numberr because there is more data. Lets says that the 5 women have a range of 1 and 10 with a meam with a 5. The data separating the mean and the top range is 5. But lets says that the range for the women is 1 and 80, with a mean of 40. The difference in the mean and the top range is 40. 40>5 because there is simply more data. Therefore higher variance.
Find the area of the figure colored in dark blue. The figure is in the photo I attached. Please, also explain me the way to solve it.
Answer:
Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!
Step-by-step explanation:
Answer:
when is this due?
Step-by-step explanation:
What is the volume, in cubic feet, of the figure below?
A. 20
B. 22
C. 120
D. 240
Answer:
C. 120 is correct
Step-by-step explanation:
I used a triangular prism calculator.
Amy sells bracelets for two dollars each. She is charged $7 to rent a booth at a craft fair.
Write an equation to represent Amy’s total profit (y) and the amount of the bracelets she sells (x).
Answer:
Y means profits and x is the number sold.
Step-by-step explanation:
(2$ times x) - 7=y.
Answer:
($2 times x) - 7=y.
Step-by-step explanation:
PLS PSLS HELP HELP !
2/10 convert to a decimal??????????
Answer:
0.2
Step-by-step explanation:
Answer:
O.2Step-by-step explanation:
Simply divide the numerator by the denominator.
= 2/10= 2÷10= 0.2 I hope it helpsCould someone pls help me
Answer: y = 90 x = 29
Step-by-step explanation:
please answer (will rate 5 stars