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salantis [7]
3 years ago
10

Currently you have $80 and your sister has $145. You decide to save $6 of you allowance each week, while your sister decides to

spent her whole allowance plus $7 each week. How long will it be before you have the same about of money
Mathematics
1 answer:
Bas_tet [7]3 years ago
7 0

You can solve the problem this way:

Your money is increading $6 a week while sister's is decreasing $7 a week (because she isn't saving any and is spending $7 of what she has weekly)

Your money each additional week vs sister''s:

80/145 (Week 0)

86/138 (Week 1)

92/131 (Week 2)

98/124 (Week 3)

104/117 (Week 4)

110/110 (Week 5) The amounts are the same in 5 weeks.

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Diego wants to find 4 1/5 - 7/10 .. Explain why he must rename 4 1/5 in order to do the subtraction?
nevsk [136]

Answer:

<u>The result is 3 1/2 and this is the explanation why Diego must convert 4 1/5 from mixed number to improper fraction.</u>

Step-by-step explanation:

These are the steps Diego should follow to find 4 1/5 - 7/10:

Step 1: Convert all mixed numbers into improper fractions.

4 1/5 = 21/5 - 7/10

Step 2: Find a common denominator between the improper fractions. When necessary, create equivalent fractions.

21/5 = 42/10 - 7/10

Step 3: Add or subtract the numerators and keep the denominator the same.

42 - 7 = 35/10

Step 4: If the answer is an improper form, reduce the fraction into a mixed number.

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<u>The result is 3 1/2 and this is the explanation why Diego must convert 4 1/5 from mixed number to improper fraction.</u>

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