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Vladimir79 [104]
2 years ago
11

Jim owns an ice-cream store. Use the clues to find out how many ice-cream cones he sold last week. • He sold more than 300 but f

ewer than 350. • The last digit is odd. . The second-to-last digit is 3 less than the last digit. • The sum of the first 2 digits equals the last digit. • The sum of all the digits is 14.
*This is 5th grade math.​
Mathematics
1 answer:
allsm [11]2 years ago
4 0

Answer:

Step-by-step explanation:

Remark

The last digit is 1 3 5  7 9 because the last digit is odd.

The first digit must be a 3 because the number is between 300 and 350

Let the first digit = x

Let the second digit = y

Let the third digit = z

x + y = z

x + y + z = 14                        Substitute z for x + y

z + z = 14                              Combine

2z = 14                                  Divide by 2

2z/2 = 14/2                            

z = 7

The first digit is 3 and the third digit = 7

The middle digit is 3 less than the last digit.

y = 7 - 3 = 4

Answer

347

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================

Now look at the second equation

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===============

Now you must make

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