Answer:
55
Step-by-step explanation:
The first crayon is chosen out of 11,so there are 11 choices
11
The second crayon is chosen out of 10 crayons left so there are 10 choices
10
11*10 = 110
But we do not care about the order, so we divide by 2 since there are 2 places
110/2 =55
700.000 = 7 . 10 . 10 . 10 . 10 . 10
We know that equal bases sum the exponents, so,
7 . 10^(1 + 1 + 1 + 1 + 1)
7 . 10^5 = 700.000
But we can also say:
(7 . 10) . 10^4
or
(70 . 10) . 10³
or
(700 . 10) . 10²
or
(7000 . 10) . 10
As we can see, the alternative C shows (7 . 10) . 10^4 which can be a correct ans, so, alternative C.
Answer:
20) 2.084 meters
21) $75
22) 0.123 meters
23) 4 foot pieces
Step-by-step explanation:
20) divide the length by 4:
8.336 ÷ 4 = 2.084 meters
21) divide total cost by the amount of tickets:
39300 ÷ 524 = $75
22) subtract the smaller number from the greater number:
0.884 - 0.761 = 0.123 meters
23) the greatest common factor of 8 and 12 is 4, so he should cut each rope into 4 foot long pieces
i would suggest memorizing this
hence
