Can someone help me pls ?
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The correct way to write 1/4% as a decimal is 0.0025.
The reporter's likely error was that he did not notice the percent sign, thus saying that 1/4% is equivalent to 0.25.
Answer:
a. .0025 b. (see below)
Step-by-step explanation:
Percents are converted to decimals by moving the decimal 2 places to the left.
a. Write 1/4% as .25% Then, move the decimal two places to the left. You arrive at .0025.
b. The reporter's likely error is he/she thinking that 25 being 1/4 of one hundred, but it is not 1/4 percent of one hundred. It is 25% of one hundred.
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first make the 10 of the 3/10 turn into a 100 so it will make the 100 of the 17/100.
to make 10 turn into a 100 you multiply it by 10. if you're going to multiply the bottom number by 10 then you have to do the same thing with the top number:
3/10 * 10/10
3*10=30
10*10=100
new equation:
30/100 + 17/100
now just add the top numbers and leave the 100's alone:
30/100 + 17/100
30+17=47
30/100 + 17/100 = 47/100
3/10 + 17/100
Find the LCD of the denominators, hence the name 'least common denominator'. To do that, list out the multiples of each denominator and find the least common one.
Multiples of 10: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100
Multiples of 100: 100
The least common denominator is 100.
Now, divide the denominator of 3/10 to get the new denominator of 100. Whatever you do to the bottom, you have to do to the top.
(3 × 10) / (10 × 10) + 17/100
30/100 + 17/100
Since the denominators are the same now, we can add both of the numerators together.
(30 + 17) / 100
47/100
The answer is: 47/100 or 0.47.
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21 and 22
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Answer:
0.2x + 5 > 2
Step-by-step explanation:
The arrow is pointing to the right so immediately you know that the sign will be greater than (>). So we can eliminate the choices, 0.3x + 8 < 3 and 0.4x +7 < 1.
Now looking at the two options that are left, we can simply solve them.
0.2x + 5 > 2
Subtract 5 on both sides
0.2x > -3
Then divide 0.2 on both sides and you're left with:
x > -15
We don't need to solve the other inequality because we know that the arrow is pointing to the right, suggesting that x is greater than -15.
Hope you find this helpful :)
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I believe the answer is -643