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Alex787 [66]
3 years ago
9

A piggy bank contains 35 coins.

Mathematics
1 answer:
stiks02 [169]3 years ago
8 0

Answer:

See below.

Step-by-step explanation:

Let d = number of dimes. Let q = number of quarters.

d + q = 35

A dime is worth 10 cents, or $0.1; d dimes are worth 0.1d.

A quarter is worth 25 cents, or $0.25; q quarters are worth 0.25q.

0.1d + 0.25q = 4.9

The system of equation is

d + q = 35

0.1d + 0.25q = 4.9

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What is the value of x for part A and part B
GuDViN [60]
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So the two sides are equivalent,

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Make a conjecture about the sum of the first 15 positive even number
erica [24]
I conclude that the sum will be even because any even number can be represented by 2n where n is a whole number
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the sum of the first 15 are
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6 0
3 years ago
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