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IrinaVladis [17]
2 years ago
7

Rosa has $300. Suppose she spends 1/4 of the money on art supplies and 2/5 of the remainder on a pair of boots. Which stamens ar

e correct for this situation?
A) The boots cost $90
B) The boots cost $45
C) Rosa spends $75 on art supplies
D) Rosa has $135 left after making both purchases
E) Rosa has $165 left after making both purchases. {please help ASAP if possible!}
Mathematics
1 answer:
lara31 [8.8K]2 years ago
5 0

Answer:

A) The boots cost $90

C) Rosa spends $75 on art supplies

D) Rosa has $135 left after making both purchases

Step-by-step explanation:

1/4 of $300 is $75.

If you subtract $300 by $75, then you get $225.

2/5 of $225 is $90.

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4b - 5 + (-a-3) i = 7 * 8i
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Answer:

Simplifying

4b + -5 + (-1a + -3) * i = 7 + -8i

Reorder the terms:

4b + -5 + (-3 + -1a) * i = 7 + -8i

Reorder the terms for easier multiplication:

4b + -5 + i(-3 + -1a) = 7 + -8i

4b + -5 + (-3 * i + -1a * i) = 7 + -8i

Reorder the terms:

4b + -5 + (-1ai + -3i) = 7 + -8i

4b + -5 + (-1ai + -3i) = 7 + -8i

Reorder the terms:

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Solving

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Solving for variable 'a'.

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Add '5' to each side of the equation.

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Combine like terms: -5 + 5 = 0

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Add '-4b' to each side of the equation.

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Combine like terms: 4b + -4b = 0

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Add '3i' to each side of the equation.

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Combine like terms: -3i + 3i = 0

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Simplifying

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Reorder the terms:

a = 5 + 4bi-1 + -12i-1

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