Evaluate each expression

Mathematics

1 answer:

Oliga [24]4 years ago

5 0

1. - 4^3 = -1 * 4*4*4 = - 64
2. (-4)^3 = (-4)(-4)(-4) = - 64
3. 4^3 = 4 * 4 * 4 = 64

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It says Renita takes minutes to ride half a mile.

She leaves 30 minutes before school.

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$2\frac{1}{2} = \frac{1}{2}+ \frac{1}{2} +\frac{1}{2} +\frac{1}{2} +\frac{1}{2}\\$

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Read 2 more answers

The school that Lisa goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 se

kakasveta [241]

Let:
x = cost of senior citizen ticket
y = cost of student ticket

4x + 5y = 102
7x + 5y = 126

4x + 5y = 102
4x = 102 - 5y
x = (102 - 5y)/4
x = 102/4 - 5y/4

7x + 5y = 126
7(102/4 - 5y/4) + 5y = 126
(714/4 - 35y/4) + 5y = 126
-35y/4 + 5y = 126 - 714/4

note:
-35y/4 = -8.75y
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-8.75y + 5y = 126 - 178.5
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y = -52.5/-3.75
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x = 102/4 - 5(14)/4
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y = cost of student ticket = $14/ea

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