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kolbaska11 [484]
3 years ago
11

The sum of three consecutive multiples of 3 is equal to 6 more than four times the smallest multiple. What is the largest multip

le ?.
a.)9
b.)12
c.)15
d.)18
Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

Answer:  (a) 9

<u>Step-by-step explanation:</u>

1st multiple of 3: 1(3x)

2nd multiple of 3: 2(3x)

3rd multiple of 3: 3(3x)

Sum = 4(1st multiple of 3) + 6


1(3x) + 2(3x) + 3(3x) = 4(3x) + 6

 3x  +    6x  +    9x  =  12x  + 6

                        18x  = 12x + 6

                          6x =           6

                            x = 1


Largest (3rd) multiple is: 3(3x)

                                      = 9x

                                      = 9 · 1

                                      = 9

kvv77 [185]3 years ago
3 0
Answer for this one is a
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