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vodka [1.7K]
3 years ago
13

What is the value of t in this equation?

Mathematics
1 answer:
pshichka [43]3 years ago
8 0

Answer:

t = 60

Step-by-step explanation:

Using the rule of exponents

(a^{n}) ^{m} ⇔ a^{mn}

Hence

(j^{-12}) ^{-5} = j^{-12(-5)} = j^{60}

Thus t = 60

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Simon has 20 quarters and 12 dimes.He wants to purchase ice cream for his friends.An ice cream cone cost $1.00.How many cones ca
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Answer:

  6

Step-by-step explanation:

Each ice cream cone costs 4 quarters or 10 dimes, so Simon has ...

  20/4 + 12/10 = 5 + 1.2 = 6.2

times the price of an ice cream cone. He can buy 6 cones for his friends.

8 0
2 years ago
Please help me with the answer
liraira [26]

Answer:

-18

Step-by-step explanation:

-15+6=-9

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2 years ago
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The temperature of a city changed -24 degrees Celsius over a 6 week period. Write an expression the show the average change in t
Ne4ueva [31]

Answer:

The expression is (-24) / 6 = -4degrees which means that in each week the average change in temperature was -4 degrees Celsius.

Step-by-step explanation:

Change in a quantities can as well be interpreted as rate of change which is used in many everyday problems, such as weather forecast, traveling , in science and so on.When we are talking about rate of change it's is usually in ratio such as Miles per hour or feet per second can be used in calculation involving rates of speed. It is how one quality is changing with respect to time , for instance, rate equals distance divided by time: r = d/t.

In finance rate of change is also applicable we can have Unit price which is a particular rate that compares a price to some unit of measure. Example is $64 per dozen.

Therefore, Given from the question,

The temperature of a city changed -24 degrees Celsius ,

Time =6 weeks period.

Then change is r = d/t.

= (-24) / 6

Change = (-24) / 6 = -4 degrees

This means that each week the average change in temperature was -4 degrees Celsius.

3 0
3 years ago
20 less than the product of 5 and x
baherus [9]

Answer:

5x-20

Step-by-step explanation:

since it says "product of 5 and x" we know that 5 and x is being multiplied

5x

since it says 20 less than we know that we need to subtract 20 from 5x

5x-20

5 0
2 years ago
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