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Viktor [21]
2 years ago
15

Calculate the average atomic mass of gold is 50% is gold 197 and 50% is gold 198

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
3 0
The answer is 74.125 average you add all them up divide by 2
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I need help with the problem PLS help
Tanzania [10]


1) It's best to draw out a picture of a rectangle and label each corner with the coordinates given: Let's say (-5, 2) is point A, (-5, -2 1/3) is point B, (2 1/2, 2) is point C, and (2 1/2, -2 1/3) is point D.

2) That being said, line AB is one side of the rectangle, BC is another, CD is another, and lastly, AD is the fourth side.

3) We can use the distance formula and plug in the coordinates of each line to find how long every side is. Then you just need to solve it.

For example: if I want to find how long side AB is, I would use the point A (-5, 2) and B (2 1/2, 2) and plug them into the distance formula, where (-5, 2) is (x1, x2) and (2 1/2, 2) is (x2, y2) and solve that.

4) Repeat this process with side BC, CD, and AD, and add the results together. This will be your final answer; the perimeter of the rectangle.

4 0
2 years ago
2 less then 3 times a number is 9
Masteriza [31]

\huge\boxed{\text{As an expression:}\ 3x-2=9}

\huge\boxed{\text{Solved for x:}\ x=\frac{11}{3}}

Let's start with "3 times a number". We will use x to represent the number. 3x

"2 less than" is next. -2

Finally, "is 9". =9

Put it all together to get an expression. \boxed{3x-2=9}

Now, let's solve for the unknown number.

Add 2 on both sides of the equation. 3x=11

Divide both sides of the equation by 3 to isolate x. x=\boxed{\frac{11}{3}}

5 0
2 years ago
Read 2 more answers
La séptima parte de un número es 3​
My name is Ann [436]
No es el 3 pero si es el numero 7
7 0
2 years ago
If morgan spends 23 on gas, what is the total distance the girls could travel
antiseptic1488 [7]
I depends on the price of gas and how many gallons she has and how fast she is going and if she would have to stop could you please clarify? 
-eagle
4 0
3 years ago
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Don't Send links, don't Write random things and get the points for free.
Dahasolnce [82]

Answer:

2,714in^3

Step-by-step explanation:

V = pi*r^2*h
V = 3.14*6^2*24
V = 3.14*36*24
V = 2,714

The volume of the cylindrical fish tank is 2,714 inches cubed.

6 0
2 years ago
Read 2 more answers
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