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Ber [7]
2 years ago
7

Need help alegbra!!! Look at photo for question!!

Mathematics
1 answer:
FinnZ [79.3K]2 years ago
5 0

Answer:

a

Step-by-step explanation:

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] What percentage of the last 30 U.S. Presidents were inaugurated at the age of 60 or later? (Round to 1 decimal place.)
svetlana [45]

Answer:

20.0%

Step-by-step explanation:

The last 30 presidents of America starts from the 16th president, Abraham Lincoln and ends with the current and 45th president, Donald Trump.

The presidents that are 60 and above years during this period include

Donald Trump, Goerge H. W. Bush, Roland Regan, Gerald Ford, Dwight D. Eisenhower and Harry S. Truman.

Making 6 of them out of 30

The percentage is given by

Number of presidents aged 60 and above×100/Total number of presidents

6×30/100=20%

7 0
3 years ago
How many times larger is 9 x 10^9 than 3 x 10^-4?
andrezito [222]
The larger value is 9 x 10^9
The smaller value is 3 x 10^(-4)

Divide the larger over the smaller
Doing so will have you divide the coefficients 9 and 3 (numbers in front of the "times ten to the..." portions) to get 9/3 = 3. 
Then you'll also subtract the exponents: 9 minus (-4) = 9 - (-4) = 9 + 4 = 13

In summary so far, we got a coefficient of 3 and an exponent of 13

So the final answer is 3 x 10^13 (assuming you want scientific notation)

If you want to convert to standard notation, instead of scientific notation, move the decimal point in 3.0 thirteen spots to the right to get 

30,000,000,000,000

there are 13 zeros (four groups of 3 plus one just after the 3) in that value above. This is the number 30 trillion
8 0
3 years ago
Which number makes the statement true <br> 12:30 = x:50 <br> A) 30<br> B) 32<br> C) 35<br> D) 41
lora16 [44]

Answer:

i think options are incorrect

x is 20 here

you can verify by putting value

6 0
2 years ago
Read 2 more answers
Cora's dad has asked Cora and her little brothers to rake the leaves in their yard. They rake all afternoon and fill a number of
Sever21 [200]

Answer:

11

Step-by-step explanation:

because they empty 6 bags and there are 5 bags left to that is 11 all together

4 0
2 years ago
Express sin Q as a fraction in simplest terms.​
____ [38]

Answer:

b

Step-by-step explanation:

hgvfigjl

8 0
2 years ago
Read 2 more answers
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