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Shtirlitz [24]
3 years ago
13

A zoo has 40 emperor penguins . if 30% of them are male , how many are male

Mathematics
1 answer:
drek231 [11]3 years ago
3 0

Answer:

12 of them are male.

Step-by-step explanation:

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2. Multiply and simplify: (x - 2)(2x + 3)<br> Answer
inysia [295]

Step-by-step explanation:

(x - 2)(2x + 3)

=2x²+3x-4x-6

=2x²-x-6

8 0
3 years ago
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(2 * 10^-2) +(9*10^-3)<br> Please before Wednesday
anzhelika [568]

Answer:

try symnolab it helps a lot with math but the answer is 29/1000 0r 0.029

Step-by-step explanation: Hopes this helps :)

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15. Construct the slope-intercept form equation of the line passing through (-5,23) and (10,-5).
Radda [10]

Answer:

15<em>y</em> = -28 <em>x</em> + 205.

Step-by-step explanation:

Slope intercept  form of equation is <em>y = mx + c</em> where m is slope and c is the y intercept.

Now slope of line passing through points (-5, 23) and (10, -5):

m = \frac{y_{2} - y_{1} }{x_{2} - x_{1} } = \frac{-5 -23}{10 + 5} = \frac{-28}{15}

Now equation of line:

<em> y = mx + c</em>

substituting the value of m in above expression,

y = -\frac{28}{15} x + c

Now, since the line is passing through the point (-5, 23) therefore, x = -5 and y = 23. By substituting these values in above equation,

23 = -\frac{28}{15} \times (-5) + c

23 = \frac{28}{3} + c

c = 23 - \frac{28}{3} = \frac{69 - 28}{3} = \frac{41}{3}

So equation of line in slope intercept form:

y = -\frac{28}{15} x + \frac{41}{3}

Further solving,

15<em>y</em> = -28 <em>x</em> + 205.

3 0
3 years ago
HELP PLEASE ITS DUE TODAY!!! Express 14 hours in 2 weeks as a unit rate
user100 [1]

Answer:

14/336 ----------> 0.41

Step-by-step explanation:

you substituto 2 week to 336 cause there are 336 hours in 2 weeks therefore 14/336 = 0.41

the unit rate is 14/336

7 0
3 years ago
3. Lin's bike travels 100 meters when her wheels rotate 55 times. What is the circumference of her wheels?
Helga [31]

Answer:

The circumference travels the same distance as the bicycle, 100 m

Step-by-step explanation:

8 0
3 years ago
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