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3 years ago

The experimental probability of a coin landing on heads is 7/12, if the coin landed on tails 30 times, find the number of tosses

Mathematics

1 answer:

Maurinko [17]3 years ago

5 0

72 tosses
Hope this helps!
Vote my brainliest!

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Help!!!! for just 3 but if you know 4 also then it’s on my page and I would appreciate the help

Rus_ich [418]

A quadratic equation is set up in the form of ax² + bx +c
First set equation = to 0
0= x² - 5x - 24
Next plug into quadratic formula( -b Plus or minus the √b²-4ac) ÷ 2a
[10 plus or minus √(25² - 4×1×24)] ÷ 2
Solve for inner parenthesis first
√625- 96 = √529
Now set up two equations
(10 + √529) ÷2 = x = 16.5
(10 - √529) ÷2 = x = -6.5
So therefore x = 16.5 and -6.5

8 0

4 years ago

50.38 inches in 2012 in 2013 the annual rainfall was 55.76 inches what is the difference in rainfall between the two years

Leno4ka [110]

55.76-50.38=4.38 inches of rainfall
Your welcome =)
difference= subtraction

3 0

3 years ago

Joelle ordered 12 dozen doughnuts for the honor roll

Serjik [45]

Answer:

The answer is there are 30 glazed donuts

Step-by-step explanation:

there are 12 donuts to a dozen therefore 12 * 12 = 144 donuts all together.

donuts with chocolate icing

$144 \times \frac{3}{8} = 54$

with white icing and sprinkles

$144 \times \frac{1}{4} = 36$

donuts with pink icing

$144 \times \frac{1}{6} = 24$

Total donuts minus donuts with icing equal glazed donuts

$144 - 54 - 36 - 24 = 30$

7 0

2 years ago

The first inverse operation you would use to solve the equation 2+5x= -8 for x is subtraction. true or false?

jok3333 [9.3K]

Answer:

It would be True

Step-by-step explanation:

2+5x = -8

SUBTACT 2 on both sides and it would look like this:

5x = -8 - (2)

5X= -10

then DIVIDE 5 both side to get "X" ALONE,

x= -10/5

then divide -10 with 5

equal to:

x = -2

4 0

3 years ago

The flower shop makes bouquets with ten flowers in each bouquet.

denis-greek [22]

I agree with with the florist because when you divide 207 by 10 you will get 20.7. This means that the florist could make 20 bouquets but seven flowers would be left out.
Hope this helps and please mark brainliest!

3 0

3 years ago