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nekit [7.7K]
3 years ago
5

John has 20 pieces of candy left for Halloween.He gave his brother 3 pieces his parents 4 pieces and his dog ate 1 piece.How man

y pieces dose he have left?Write it as a FRACTION DECIMAL and PERCENT.
Someone Help MEEE
Mathematics
1 answer:
andrew11 [14]3 years ago
7 0
He gave away 8 so he would have 12/20 which is 60% left :)
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The table shows a student's proof of the quotient rule for logarithms.
nikklg [1K]

Answer:

The error is at step (3) .

The correct step (3) will be,

\log_{b}(\frac {b^{x}}{b^{y}})

= \log_{b}(b^{x - y})   [by using the laws of indices]

All other steps are correct.

Step-by-step explanation:

The error is at the step (3) , because the student has tried to prove the quotient rule of logarithms by using the property i.e., 'The quotient rule of logarithm' itself , i.e. ,by  assuming the property does hold before proving it. So, the proof is fallacious.

The correct step (3) will be,

\log_{b}(\frac {b^{x}}{b^{y}})

= \log_{b}(b^{x - y})   [by using the laws of indices]

All other steps are correct.

5 0
3 years ago
Please help me with these two questions. Find the circumference AND area for the circles on the right. (I will mark brainliest)
notsponge [240]

5). Radius = 6 km. Circumference = 12π km. Area = 36π km²

6). Diameter = 8 mm. Circumference = 8π mm. Area = 16π mm²

7 0
3 years ago
Read 2 more answers
sarah and her six friends are decorating picture frans with ribbon they have 5 rolls of ribbon to share evenly
Leya [2.2K]
Http://lbcsd.innersync.com/sites/jhayes/documents/U1M3Gr6pg.49-502015JHayes.pdf
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3 years ago
g A program executes a mix of different instruction types. 25% of the instructions require two clock cycles to execute, 20% requ
Tomtit [17]

Answer:

1.8 cycles

Step-by-step explanation:

The average number of clock cycles per instruction is given by the sum of the product of each possible number of cycles by its likelihood.

1 cycle: 50%

2 cycles : 25%

3 cycles : 20%

4 cycles : 5%

Avg = 0.5*1+0.25*2+0.20*3+0.05*4\\Avg= 1.8\ cycles

The average number of clock cycles per instruction is 1.8.

8 0
3 years ago
Find the sum <br> 12x^2+9x^2
katen-ka-za [31]
Let's simplify step-by-step.
<span><span>12<span>x^2</span></span>+<span>9<span>x^2
</span></span></span>Combine Like Terms:
<span>=<span><span>12<span>x^2</span></span>+<span>9<span>x^2
</span></span></span></span><span>=<span>(<span><span>12<span>x^2</span></span>+<span>9<span>x^2</span></span></span>)
</span></span><span>=<span>21<span>x^<span>2</span></span></span></span>
5 0
3 years ago
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