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3 years ago

14

Multiplication using the distributive property practice Hannah homework lesson 25 chapter tonight P 91 question number two in th

e back

1 answer:

melamori03 [73]3 years ago

5 0

Solve out the actual multiplication problem: 18 x 5 = 90

So you can see that the final answer is 9 tens.

hope that helps :)

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Find the missing angle in the triangle below

antoniya [11.8K]

Answer:

120

Step-by-step explanation:

Exterior angle theorem

50 + 70 = 120

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3 years ago

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Harlamova29_29 [7]

Answer:

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3 years ago

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Verizon [17]

Answer:

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Step-by-step explanation:

8(7n - 2) - 6(7n + 1)

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2 years ago

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Math To Do Ready

emmasim [6.3K]

Answer:

At 1pm, the number of bacteria in the dish is 1,000,000

At 12pm, the number of bacteria in the dish is 500,000

Step-by-step explanation:

Given the information on the table

$\left|\begin{array}{c|c}$Hour&$Number of Bacteria (in millions)\\---&--------------\\12 p.m.&\\1 p.m.&\\12 p.m.&\\2 p.m.&\\3 p.m.&\\4 p.m.&\\5 p.m.&32\\6 p.m.&64\end{array}\right|$

We are to follow the pattern to determine how many million bacteria were in the dish at 1 p.m. and 12 p.m.

Now:

$32=2^5\\64=2^6$

It therefore means that the bacteria population doubles every hour. Following this pattern and reducing the exponents by 1 backwards, we have:

$\left|\begin{array}{c|c}$Hour&$Number of Bacteria (in millions)\\---&--------------\\12 p.m.&2^{-1}=0.5\\1 p.m.&2^0=1\\12 p.m.&2^1=2\\2 p.m.&2^2=4\\3 p.m.&2^3=8\\4 p.m.&2^4=16\\5 p.m.&2^5=32\\6 p.m.&2^6=64\end{array}\right|$

Therefore:

At 1pm, the number of bacteria in the dish is 1,000,000
At 12pm, the number of bacteria is 0.5 million=0.5 X 1,000,000=500,000

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3 years ago