3 years ago

In permutations, order matters.

Mathematics

1 answer:

Anton [14]3 years ago

6 0

The order you put the numbers in matters.

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I have no idea how to solve this. Help would me much appreciated.

Otrada [13]

Answer:

Adam is 9 years old.

Step-by-step explanation:

Let d and c represent Adam's and Alicia's ages.

d = c - 15, and

c + 6 = 2(d + 6)

Rearrange d = c - 15 as c = d + 15, and then substitute d + 15 for c in the second equation. We obtain:

d + 15 + 6 = 2(d + 6), or

d + 21 = 2d + 12

Combining like terms, we get 21 = d + 12, or 9 = d.

If d = 9 then c = d + 15, or c = 9 + 15, or c = 24.

Adam is 9 years old.

7 0

4 years ago

Can someone help me with this ASAP

loris [4]

Answer:

30 for the first one

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Ab is 10. 8 units long if ABC is dilated by a scale factor of k equals 1.3 what is the length of a'b'

Marizza181 [45]

ANSWER

The length of

$A'B'=14.04 \: units$

EXPLANATION

The object length given to us is,

$|AB|=10.8 \: units$

The scale factor of the dilation is,

$k = 1.3$

The image length can be calculated using the formula

$|A'B'| = k \times |AB|$

We substitute the given values into the formula to get,

$|A'B'| = 1.3\times 10.8$

We multiply out to obtain,

$|A'B'| = 14.04 \: units$

7 0

3 years ago

Distance between the points (-5,1) and(2, -1)

Anna [14]

Answer:

AB = 7.3

Step-by-step explanation:

7 units to the right, then 2 units down

Hope this helps!!

Plz let me know if I'm wrong...

3 0

4 years ago

Joanna has 20 pieces of candy. she decides then between her X friends. How many pieces does each friend get?

OLga [1]

Answer: 20/x

Step-by-step explanation:

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3 years ago