Answer:
if your doing scientific notation then 2.7x10^3 would be the only one correct. if its not scientific notation then 27x10^3 would be more because it would be equivilent to <em>2700<27000</em>
Step-by-step explanation:
1/10 = .1, and 3/33 = .0909090... it is equivalent if you estimate.
9514 1404 393
Answer:
d: (11×7) - (6 + 10)
Step-by-step explanation:
"the product of 11 and 7" is 11×7.
"the sum of 6 and 10" is (6 +10).
The difference between the product and the sum is ...
(11×7) -(6 +10) . . . . . matches choice D
Well, the first important step is to give some attention to understanding
what the question is. In this case, the question probably had something
to do with finding a "unit rate". That means how many pages in each minute.
To find the number of "pages per minute", just divide the (number of pages)
by the (number of minutes).
(20 pages) / (30 minutes) = (20/30) = <em>(2/3) page per minute</em> .
If you'd rather have that answer in the form of a decimal instead of a fraction,
then you could either take a pencil and divide 2 by 3 to get the decimal, or
else take your calculator and punch in ' 2 ' ' ÷ ' ' 3 ' ' = ' . Either way, you
find that the decimal equivalent of 2/3 is 0.666... . The 6s keep going forever
and never end.
Answer:
C
Step-by-step explanation:
7x + 3y = 30 (equation 1)
-2x + 3y = 3 (equation 2)
9x = 27 (subtract the two equations to eliminate y)
x = 3 (divide by 9)
7 * 3 + 3y = 30 (Substitute x = 3 into equation 1, it doesn't matter which equation you substitute into)
21 + 3y = 30 (7 * 3 = 21)
3y = 9 (Subtract 21)
y = 3 (divide by 3)
Answer is (3, 3)
