Two families are going ice skating over their Christmas break. The first family spends $25 on skate rentals for 5 kids and 2 adults. The second family spends $14 on skate rentals for 3 kids and 1 adult. How much does each skate rental cost for an adult?

Answer:

Step-by-step explanation:

10x = 90

x = 9

RP = 9 - 4 = 5

[tex]P_{AEPR}[/tex] = 20

Answer:

There are 5 sides of the shape so, 4+4+4+4+4= 20.

So, 20 is the perimeter

Answer:

The answer is 20cm

Step-by-step explanation:

The shapes are equal, therefore if you multiply 4x5 it would be 20.

Answer:

The answer would be D, 7.5 T

Step-by-step explanation:

If the collective weight is 27.5 tons, and the iron rods are 20 tons, subtract 20 from 27.5.

27.5-20=7.5

Answer:

its D

Step-by-step explanation:

i got it right on my quiz hope this helps

Answer:

Answers are located below <3

Step-by-step explanation:

1. 2 days

2. 11 days

3. May 16th

4. June 12th

5. 5 days ago

6. May 29th

Number 1: 2 days left

Number 2: 11 days

Number 3: May 17

Number 4: May 19

Number 5: 5 days ago

Number 6: May 29

Answer:

yes they are

Step-by-step explanation:

each side of JKL is 1.5 times of GHI

Answer:

4

Step-by-step explanation:

5 smiles - 1 = 4 smiles

Answer:

I think there are still 5 smiles. I dont know

Answer:

need help too

Step-by-step explanation:

Answer: SHE GOT 13 MONTHS YES SHE DO, 13 MONTHS LEFT IS ANSWER

Step-by-step explanation:

Answer:

mark brainliest plz mark brainliest plz

false because when u connect the dots it does not make a straight line that goes thru the origin

Answer:

false

Step-by-step explanation:

Answer:

Step-by-step explanation:

95.9

The probability of flipping a coin 85 times and getting tails 50 times or fewer 99.8%, the correct option is B

Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.

P(E) = Number of favorable outcomes / total number of outcomes

We are given that;

The coin is flipped 85 times

Now,

The probability of flipping a coin and getting tails on any single flip is 0.5 (assuming it's a fair coin). We can model this scenario using a binomial distribution, where:

n = 85 (the number of coin flips)

p = 0.5 (the probability of getting tails on any single flip)

x = 50 (the maximum number of tails we want to allow)

We want to find the probability of getting 50 tails or fewer, so we need to calculate the cumulative probability of the binomial distribution up to x = 50. We can use a binomial probability calculator or a spreadsheet program to do this calculation.

Using a binomial probability calculator, we get:

P(X ≤ 50) = 99.8%

Therefore, the probability will be 99.8%.

Learn more about probability here;

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Answer:

5/1

Step-by-step explanation:

This question is confusing, but I flipped the 5 and 1

Answer:

No

Step-by-step explanation:

S only has a single 4

so subset A can only have a single 4

A{3, 4}

Answer:

11 degree angle complement: 79 degrees

92 degree angle supplement: 88 degrees

56 degree angle complement: 34 degrees

m < 2 = 139 degrees

m < 3 = 139 degrees

m < 4 = 41 degrees

Answer:

[tex]\boxed {\boxed {\sf z=2.8}}[/tex]

Step-by-step explanation:

The z-score helps describe a value's relationship to the mean. It tells us how many standard deviations a value is from the mean. The formula is:

[tex]z= \frac{x- \bar x}{s}[/tex]

where x is the value, x-bar is the mean, and s is the standard deviation.

We know the data set has a mean of 25 and a standard deviation of 5. The value we are finding the z score for is 39.

Substitute the values into the formula.

[tex]z= \frac{ 39-25}{5}[/tex]

Solve the numerator.

[tex]z= \frac{ 14}{5}[/tex]

[tex]z=2.8[/tex]

The z-score for 39 is 2.8. This means a value of 39 is 2.8 standard deviations greater than the mean.

Answer:

x coordinate =0

y coordinate =3

E(0,3)

Answer: (0,3)

Explanation: Sense it's not left or right  and "E" is up you don't put (1,3) you put (0,3).

Answer:

4-36 = -32

-32 + 180 = 148

Therefore | x = 148

I hope I helped! :)

Answer:

148

Step-by-step explanation:

=> -32=x-180

=> -32+180=x

=> 148=x

Mark me brainliest :))

Answer:

49

Step-by-step explanation:

(4 × 10) + 9

= 49

Area = 1/2 × NMP angle in radian × radius^2

Area = 1/2 × ( 40pi /180 ) × 12^2

Area = 1/2 × ( 2pi / 9 ) × 144

Area = 1/2 × 144 × ( 2 × 3.14 / 9 )

Area = 72 × 0.697

Area = 50.184

Area = 50.18 cm^2

Answer:

Answer:

Length of leg of triangle =  

Step-by-step explanation:

We are given a 45°-45°-90° triangle with hypotenuse measuring 18 cm.

Let us assume the following labeling of the diagram, as attached in the answer area.

The two angles here are equal to 45° so two sides of the triangle opposite to the equal angles will also be equal to each other i.e. it is an isosceles triangle.

i.e. The sides XY and YZ will be equal.

Let XY = YZ = x cm

It is known that in a right angled triangle, pythagorean theorem holds well.

As per pythagoream theorem:

Putting the values:

So, the length of leg of triangle =

Step-by-step explanation:

Answer:

cotx(1+csc x)/(1-csc x)(1+csc x)

Answer: cotx(1+csc x)/(1-csc x)(1+csc x)

Step-by-step explanation:

Answer:

A, because x>3 or x<-4

Answer: D is the answer.

-4 < x < 3

Step-by-step explanation:

5x-2>-22 and 6x - 7 < 11

5x > -20 and 6x < 18

x > -4 and x < 3

Rearrange: -4 < x < 3 answer choice D

Answer:

1) 60

3) 120

4) 60

Step-by-step explanation:

Angle 1 is supplementary to your known angle. Therefor, Angle 1 is 180 - 120

Angle 3 is supplementary to Angle 1 and equal to 120

Angle 4 is supplementary to Angle 3 and equal to angle 1.

Answer: 14,000 seeds

Step-by-step explanation: hope this helps<3

This is the Step-by-step explanation:

Allow a random number generator to come up with 100 families within a 50 radius of the amusement park.

A random number selector can be used to select 100 families out of the total number of families living within a 50 mile radius of the amusement park.

Random sampling refers to the process of randomly selecting a set of samples from a population in random manner without bias.

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Answer:

cjxbdjd xkdnkdkdns xkdnskzkns xkdnd d d d d d d d. d d dd d d d d. d d d d d d d d d d dd. d d

Answer:  standard deviation = 8

This is because mu = 75 is the mean, which is at the very exact center of this distribution. One space to the right is 83, which is 83-75 = 8 units away from the center. This distance is exactly one standard deviation. We can say "83 is one standard deviation larger than 75".

Or you could note the distance from 67 to 75 is also 8, because 75-67 = 8. Each tickmark represents stepping one standard deviation in distance.