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statuscvo [17]
2 years ago
11

If 4^x * 5^y = 20, 4^y * 5^x * = 20^2 Then x + y =

Mathematics
1 answer:
serious [3.7K]2 years ago
8 0

Answer:

Step-by-step explanation:

multiply\\4^x*5^y*4^y*5^x=20*20^2\\4^{x+y}*5^{x+y}=20^{1+2}\\(4*5)^{x+y}=20^3\\20^{x+y}=20^3\\x+y=3

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The school talent show is 92 minutes long. Acts in the talent show are each about 4 minutes long. How many acts should there be?
valentina_108 [34]

Answer:

23 acts

Step-by-step explanation:

This is a division problem.

92/4 = 23

Answer: 23 acts

5 0
3 years ago
Avary wanted to buy a gold necklace that cost $578. She pain an initial amount of $128 and agreed to pay the rest in monthly ins
serg [7]

Answer:

75 each month

Step-by-step explanation:

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7 0
2 years ago
Find the measure of each marked angle.<br> (9x-27)<br> (4x)
valkas [14]

Answer:

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5 0
3 years ago
PLZZZZ HELPPPPPPP!!!!
Vladimir79 [104]

Answer: The height of the building is 50.75 feet.

Step-by-step explanation:

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3 0
3 years ago
Please help me with finding the area
arsen [322]

Answer:

the Answer is 382.5

Step-by-step explanation:

Hope this Helps! :)

3 0
3 years ago
Read 2 more answers
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