I need help with these 4 problems

Mathematics

2 answers:

ser-zykov [4K]3 years ago

7 0

To find out if the given value is a solution of the equation, substitute/plug it in to see if it equals out:

1. 34 + x = 46; x = 12 Plug in 12 into "x" since x = 12

34 + 12 = 46

46 = 46

The given value is a solution of the equation because it does equal 46

2. y - 9 = 14; y = 22 Plug in 22 into "y" since y = 22

22 - 9 = 14

13 = 14

The given value is not a solution of the equation because 22 - 9 equals 13 not 14

3. 6d = 54; d = 9 Plug in 9 into "d" since d = 9

6(9) = 54

54 = 54

The given value is a solution of the equation because it does equal 54

4. $\frac{n}{3} =13$ ; n = 39 Plug in 39 into "n" since n = 39

$\frac{39}{3} =13$

13 = 13

The given value is a solution of the equation because it does equal 13

snow_tiger [21]3 years ago

7 0

What they said up there ^

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Fiona wants 6 red, 3 green and 3 yellow buttons on her dress. All buttons must be placed along a straight vertical line with no

elixir [45]

The appropriate method to use in solving the given question is permutation. Then, the numbers of ways to arrange the buttons is 1320 ways.

In the given question, the order of arrangement is important, so that the number of ways that Fiona could order the buttons can be determined by permutation method.

i.e $_{n}$ $P_{r}$ = $\frac{n!}{(n - r)!}$