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2 years ago

There are 8 ducks swimming in a pond. If 6 have green wings and 2 have blue wings, what fraction of the ducks have blue wings?

2 answers:

4 0

The entirety of 8 ducks as a fraction is 8/8.

So 2 ducks have blue wings which means that represents a quarter (25%) of the total ducks.

A quarter as fraction is 1/4.

Ex to understand de logic:

1/1 is a full (100%)
1/2 is a half (50%)
1/4 is a quarter (25%)

In our case 8/8 equals with 1/1 (100% of the ducks).

SCORPION-xisa [38]2 years ago

3 0

2/8=1/4 for me would be the fraction of ducks

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Solve 4x – 2(x + 1) = 3x + 10 Ox= -12 Ox=12 Ox= -8 Ox=8 HELP ASAP

hammer [34]

Answer:

The Answer is : x= -12

Step-by-step explanation:

$4x-2(x+1)=3x+10\\4x-2x-2=3x+10\\2x-2=3x+10\\2x-3x=10+2\\-x=12\\x=-12$

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2 years ago

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How do you find 10% of 9900

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Step-by-step explanation:

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3 years ago

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For what value of q is in the question -13(q+4)=7q+16

Rufina [12.5K]

Answer:

q=-3 2/5

Step-by-step explanation:

First multiply -13 with (q+4)

-13q-52=7q+16

Now you have to change the order before = the numbers with q and after = the numbers without anything

-13q-7q=52+16

Remember that when you change positions the symbol too

Then solve it

-20q=68

Now u have to divide as i do

q=68/-20

you can simplify it

q=3 8/-20

Now divide by the greater divisor in this case is 4

q=3 2/-5

And organize it

q=-3 2/5

Never forget to do q=(answer)

Hopefully it helps.

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3 years ago

The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. Th

ankoles [38]

We have been given that the distribution of the number of daily requests is bell-shaped and has a mean of 38 and a standard deviation of 6. We are asked to find the approximate percentage of lightbulb replacement requests numbering between 38 and 56.

First of all, we will find z-score corresponding to 38 and 56.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{38-38}{6}=\frac{0}{6}=0$

Now we will find z-score corresponding to 56.

$z=\frac{56-38}{6}=\frac{18}{6}=3$

We know that according to Empirical rule approximately 68% data lies with-in standard deviation of mean, approximately 95% data lies within 2 standard deviation of mean and approximately 99.7% data lies within 3 standard deviation of mean that is $-3\sigma\text{ to }3\sigma$ .