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Paraphin [41]
3 years ago
7

Word Problems

Mathematics
1 answer:
alekssr [168]3 years ago
5 0

1. 45

write the consecutive numbers as x, x+1 and x+2 as its a sum 3x+3=138 so 3x+135 and x=45

2.$4

27-3=24, 6 candy bars for $24 dollars so $4 each

3. 6 hours

59-11 initial fee is $48 at a rate of $8 per hour, 48/8 is 6hours

4.52

29 is half of what he had once getting 6 new cards

so 58-6  52 giving the original number

5.27

using the same method as 1

6.21

odd numbers must be written as 2n+1,2n+3,2n+5

the sum 6n+9 =69

n=10

2n+1=21

7. 12

12-6 =6

6x2=12

8.$6

12-9=3

this is half the allowance so the  is 3x2=6

9.57

291-6=285 is the number in all 5 buses total

285/5=57 students per bus

10.19

184-13= 171 dollars spent on all nine books

171/9=19 per book

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