Answer:
75 quarters 25 nickels
Step-by-step explanation:
q=quarters n=nickels
q+n=100 n=100-q
0.25q +0.05(100-q)=20
From now I will multiply by 100 to avoid decimals
25q + 5(100-q)=2000
20q=1500
q=75 n=25
75*0.25= 18.75
25*0.05=1.25
18.75+1.25=20
To solve this, we need to know what 501,800,000 is in scientific notation. We can figure out what <span>501,800,000 is in scientific notation by first figuring out what we're going to be multiplying by ten to the power of x. We're going to multiply 5.018 by 10 to the power of x because it 5.018 is the what happens when you put a dot after the first number and then get rid of all the zeroes after the last non-zero number (which is what scientific notation is about). Now we need to figure out what we need to multiply 5.018 by to get to </span>501,800,000. We need to multiply 5.018 by

to get to 501,800,000, so <span>501,800,000 in scientific notation is 5.018 </span>·

. Since we now see that the two values are not equal, the answer to the question is
false.
Answer:
Step-by-step explanation:
Now, this is in unit form.
You are asking to make it in simple form.
<u>Well, Here is how you do it:</u>
- Remove the words.
- Wholes (*2) and fifths.
- then, your equation is now is simplest form.
- The equation is: -2 45 ÷ (-7).
There you have it!
Answer:
Step-by-step explanation:
Area = pi * radius squared

The radius is half of the diameter.
The diameter is 16, so that means the radius is 8

Square 8

A=201.06
The area is 201.06 inches
Answer:
That’s correct
Step-by-step explanation: