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olga nikolaevna [1]
3 years ago
10

Evaluate Each Expression. (Show Your Work.)

Mathematics
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

1. 8^2

2. 3^4

3. 5^3

Step-by-step explanation:

1)8×8 = 64

2)3×3×3×3=81

3)5×5×5=125

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Two trains leave a city at 3 P.M. One train goes east at a constant rate of 70 mph. The other goes west at a rate of 62 mph. How
andrey2020 [161]

Answer:

4 hours

Step-by-step explanation:

The general formula for distance, rate and time is:

d = rt, where distance is the product of rate multiplied by time

Given that one train is moving at a rate of 70 mph and one is moving at a rate of 62 mph in the opposite direction, the combined distance over time is equal to 528 miles.  Using the variable 't' for time:

70t + 62t = 528

Combine like terms: 132t = 528

Divide both sides by 132: 132t/132 = 528/132  or t = 4 hours

8 0
3 years ago
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Waylon is back-to-school shopping with his mom at a large department
levacccp [35]

Answer:

Waylon's Purchase will cost $198.05, and section B depends.

Explanation: Section A is 85% of 233 since thats the total, making the answer to section A $198.05. The answer to section B depends because if he wants more school supplies, then yes, he would want to buy more things for better deals. But if he’s on a budget, then he wouldn't want to spend as much money since saving 20% on something over $300 is more than saving 15% on something over $200.

4 0
2 years ago
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Select the correct answer.
skelet666 [1.2K]

Answer: the answer is 3

Step-by-step explanation:

got it right on edmentum I am a smart mf

8 0
2 years ago
Suppose you choose a marble from a bag containing 4 red marbles, 2 white marbles, and 3 blue marbles. You return the first marbl
ira [324]
4/9*3/9= 12/81=4/27
You have a 4 in 27 chance of drawing a red then a blue.
8 0
3 years ago
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In the refrigerator, Larry found 75% of a pizza. He ate 25% of what was left. HOw much pizza did he eat?
mote1985 [20]

Answer: 25%

Step-by-step explanation:

You said it eight there he at 25%

5 0
3 years ago
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