Answer:
b) 7.89*10^4
c) 3.15*10^3
Step-by-step explanation:
2-42)
the coefficient in scientific notation (the number that is not 10^x) has to be greater or equal to 1 and less than 10. so c and b are incorrect.
b) 0.789*10^5
c) 31.5*10^2
b) 0.789*10^5
in order to make 0.789 greater than 1, I would just multiply it by 10. shown below
=0.789*10*10*10*10*10
=7.89*10*10*10*10
=7.89*10^4
c) 31.5*10^2
same concept but this time divide by 10 to make 3.15 which will add another *10 to the exponent
=31.5*10*10
=3.15*10*10*10
=3.15*10^3
0.90 and I think .9 is another I'm not sure but I tried
Answer:
.
10% of 50 coins is/are 5 coins. So, 5 coins are pennies.
40% of 50 coins is/are 20 coins. So, 20 coins are dimes.
The number of nickels is (5 + 9) = 14, according to the condition.
Then quarters are the rest (50 - 5 - 20 - 14) = 11 coins.
Now you can easily calculate the total and answer the question
Total = 5*1 + 14*5 + 20*10 + 11*25 = 550 cents = $5.50. ANSWER
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
First you solve for x
3x-1 = 2x-4+2x-3-2
3x-1 = 4x-5
You get 4 = x
substitute 4 for x
2(4)-4
8-4
=4
Hello there.
Question: <span>How do you convert 250% into a fraction.
Answer: </span>Step 1: Factor both the numerator and denominator down to prime factors:
250 = 2 * 53
100 = 22 * 52
Step 2: Calculate the greatest common factor, GCF
GCF = (2 * 53; 22 * 52) = 2 * 52
Step 3: Divide both the numerator and denominator by their greatest common factor, 250/100 =
(2 * 53)/(22 * 52) =
<span>((2 * 53) : (2 * 52))</span> / <span>((22 * 52) : (2 * 52))</span> =
5/2
Ways of writing this:
<span>Positive improper fraction:
250/100 = 5/2
Mixed number (also called mixed fraction):
250/100 = 2 1/2
Decimal number:
250/100 = 2.5
In short, Your answer is<span> 5/2</span>.
Hope This Helps You!
<span>Good Luck Studying ^-^</span></span>
