A rectangle is 12 cm longer than it is wide. If its length and width are both decreased by 2 cm, its area is decreased by 108 cm
1 answer:
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Answer:
17.) 12
18.) 1/15
Step-by-step explanation:
2 ÷
This problem is asking how many 's can go into 2 blocks. If you divide one box into 6 parts, each tiny box will be
of the whole. Divide the other box into 6 parts as well, and you will get 12 of these
parts. Check your answer by multiplying 12 by
. The answer is
which is also equal to 2.
÷ 5
For this one, think of it as we have one big box divided into thirds. We want to divide each portion by 5. So you should have 5 tiny boxes in each
which gives you a total of 15 boxes. But if we look at it as one big box divided into 15 parts, we know that each of those is
. Check your answer by multiplying
by 5 and you get
which is equal to
.
Let me know if you have any questions, and good luck!
Answer:
0.4167 is the probability of rolling a sum less than 7.
Step-by-step explanation:
We are given the following in the question:
Event: A standard pair of six-sided dice is rolled
A: rolling a sum less than 7
Sample space:
{(1,1),(1,2),(1,3),(1,4),(1,5),(1,6)
(2,1),(2,2),(2,3),(2,4),(2,5),(2,6)
(3,1),(3,2),(3,3),(3,4),(3,5),(3,6)
(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)
(5,1),(5,2),(5,3),(5,4),(5,5),(5,6)
(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}
A:
{(1,1),(1,2),(1,3),(1,4),(1,5),(2,1),(2,2),(2,3),(2,4),(3,1),(3,2),(3,3),(4,1),(4,2),(5,1)}
Formula:
0.4167 is the probability of rolling a sum less than 7.