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3 years ago

There are 325 children at the zoo . If 64% of children are boys and the

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

4 0

Answer:

117 Girls

Step-by-step explanation:

If 64% of the kids are boys, then 36% are girls 64% + 36% = 100%

.36 x 325 = 117 girls

Proof

.64 x 325 = 208 boys

208 + 117 = 325

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If a roasting is 600mm x 500mm how many 25cm cake time will fit on it?

nydimaria [60]

So assuming that 25cm is 25 square cm because you cannot have a 2 dimentional cake so

600mm by 500mm
to find the area, multiply legnth by width

mm=milimeters
cm=centimeters
this is in mm so
1cm=10mm
1mm=1/10cm
to convert from mm to cm, you divide by 10
we must divide by 10 first
legnth =600mm
600/10=60cm
legnth=60cm

width=500mm
500/10=50cm
width=50cm

area=60 times 50=3000 square cm or cm^2
so 3000 is the area
25 is the area of each cake
divide 3000 into 25 and find how many cakes will fit

3000/25=120

120 cakes will fit

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%5B-%5D%7B64%7D" id="TexFormula1" title="\sqrt[-]{64}" alt="\sqrt[-]{64}" align="absmid

Gemiola [76]

Answer: -8

Explanation:

-sqrt(64)

If 8 x 8 = 64, then the square root of 64 is 8.

Result: -8

3 0

3 years ago

This is a graph of y=x2-5

PolarNik [594]

Answer:

Yes, it is a graph

Step-by-step explanation:

6 0

3 years ago

( and ) means bigger than and smaller then

Paul [167]

< and > means greater than or less than**

Anything that is closer to the positive side of the number line is considered greater.
So,

All are true.

3 0

3 years ago

Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times. Part A: Based on the results, what is the

lisabon 2012 [21]

The theoretical probability of the coin landing heads up is 0.5.

We have given that,Isla flipped a coin 30 times.

The coin landed heads up 9 times and tails up 21 times.

We have to determine,What is the theoretical probability of the coin landing heads up?

<h3>What is the meaning of theoretical probability?</h3>

Theoretical probability is probability that is determined on the basis of reasoning. Experimental probability is probability that is determined on the basis of the results of an experiment repeated many times.

By using the theoretical probability concept assuming it means a percentage, so to turn a fraction into a percentage the top by the bottom (9÷30) and multiply by 100

. $\frac{9}{30}* 100=90%$

And, to turn a fraction into a percentage the top by the bottom (9÷30) and multiply by 100.

$\frac{9}{21} *100=42.86%$

It depends on if it wants a basic probability on how many times it will land on heads, if it does use 42.86%. If it wants a probability out of 30 it's 30%.

The theoretical probability of the coin landing heads up is given by,

$=\frac{50}{100}\\ =\frac{1}{2} \\=0.5$

Hence, The theoretical probability of the coin landing heads up is 0.5.

To learn more about the probability visit:

brainly.com/question/8652467

3 0

2 years ago