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DaniilM [7]
3 years ago
12

Kim and Dan sold 160 homes together. Kim sold 4 times more than Dan. How many homes did Kim sell?

Mathematics
1 answer:
shusha [124]3 years ago
6 0
Kim has sold 128 houses.

160 - 32 = 128.
32 • 4 = 128.

Kim has sold 128 houses.
Dan has sold 32 houses.
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What is (x+6)^2 and (x-3)^2
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x² + 6x + 6x + 36    x² - 3x - 3x + 9
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4 0
3 years ago
A red die, a blue die, and a yellow die (all six sided) are rolled. we are interested in the probability that the number appeari
NISA [10]

5/54 or approximately 0.092592593  
There are 6^3 = 216 possible outcomes of rolling these 3 dice. Let's count the number of possible rolls that meet the criteria b < y < r, manually.
 r = 1 or 2 is obviously impossible. So let's look at r = 3 through 6.
 r = 3, y = 2, b = 1 is the only possibility for r=3. So n = 1
 r = 4, y = 3, b = {1,2}, so n = 1 + 2 = 3
 r = 4, y = 2, b = 1, so n = 3 + 1 = 4
 r = 5, y = 4, b = {1,2,3}, so n = 4 + 3 = 7
 r = 5, y = 3, b = {1,2}, so n = 7 + 2 = 9
 r = 5, y = 2, b = 1, so n = 9 + 1 = 10
 
 And I see a pattern, for the most restrictive r, there is 1 possibility. For the next most restrictive, there's 2+1 = 3 possibilities. Then the next one is 3+2+1
= 6 possibilities. So for r = 6, there should be 4+3+2+1 = 10 possibilities.
Let's see
 r = 6, y = 5, b = {4,3,2,1}, so n = 10 + 4 = 14
 r = 6, y = 4, b = {3,2,1}, so n = 14 + 3 = 17
 r = 6, y = 3, b = {2,1}, so n = 17 + 2 = 19
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6 0
3 years ago
Need this very badly ​
ira [324]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
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It costs $100 to rent a bowling alley, plus $4 per person. The cost for any number (n) of people can be found using the expressi
AfilCa [17]

15*4+100

15+15+15+15 = 60

60+100 =

$160

7 0
3 years ago
Read 2 more answers
What is 2 X (6+ 2 + 8) -4
VladimirAG [237]

Answer:

The correct answer is 32x - 4

Step-by-step explanation:

1) Simplify 6 + 2 to 8.

2x(8 + 8) - 4

2) Simplify 8 + 8 to 16.

2x \times 16 - 4

3) Simplify 2x × 16 to 32x.

32x - 4

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>32x</u><u> </u><u>-</u><u> </u><u>4</u>.

4 0
3 years ago
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