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charlesiarenee0
31.03.2020 •
Mathematics
When Jupiter and Earth are closest to each other, they are about 365 million miles apart. Express this distance in scientific notation.
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Ответ:
3.65 e8
Step-by-step explanation:
The scientific notation e mean ‘10 raised to a particular power’. Therefore e8 is equivalent to 10 ^ 8.
We count the number of tens to the decimal point. In this case;
365000000
3.65000000
The decimal is 8 place values from the right (since this is a whole number)
Ответ:
It would take 4 quarts of 5% buttermilk and 41 quarts of 2% buttermilk to make 45 quarts of 3% buttermilk.
Step-by-step explanation:
Let the number of 5% quarts = x
Let the number of 2% quarts = y
x+y=45
y=45-x
(.05)x+(.02)y=(0.03)45
5x+2y=102
5x+2(45-x)=102
5x+90-2x=102
3x=12
x=4
y=45-x=45-4=41
So it would take 4 quarts of 5% buttermilk and 41 quarts of 2% buttermilk to make 45 quarts of 3% buttermilk.