Please help with this

Answer:

30

Step-by-step explanation:

44 - 14 = 30 more

Answer:

30 practices

Step-by-step explanation:

Answer:

18:54 of student to classroom at both school to be the same

Answer:

[tex]y=-x+7[/tex]

Step-by-step explanation:

Equation of straight line is given as

[tex]y-y_1=m(x-x_1)[/tex]

where slope m is calculated as

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Here

[tex](x_1, y_1)=(1, 6) \ \ and \ \ (x_21, y_2) = (5, 2)[/tex]

[tex]m = \frac{2 - 6}{5 - 1}\\m=\frac{- 4}{4} \\m=-1[/tex]

Equation of line that passes through the points (1,6) and (5,2)

[tex]y-6=-1(x-1)\\y=-x+7[/tex]

Answer:

18 days

Step-by-step explanation:

brailiest please!

Answer:

A.

Step-by-step explanation:

The best option that would demonstrate this concept would be the belief that no one should kill another person. This is because out of all the available options this is the only intangible "material" that actually affects a population's culture. Such a belief or idea would make a population create their entire culture around such a belief as well as the other thoughts and ideas that define what is write and wrong to a culture.

Answer:

25

Step-by-step explanation:

a= 2 A/b siny

Answer:im pretty sure its 84

Step-by-step explanation:a=(axb)/2

a=(7x24)=168/2=84

Answer:

133 pieces of 15cm can be cut from the ribbon.

Step-by-Step Explanation:

Length of ribbon = 20 meters

Length needed to be cut = 15 cm

We will convert meters into centimeters.

1 meter = 100 cm

20 meters = 2000 cm

Number of pieces = [tex]\frac{2000}{15}[/tex]

Number of pieces = 133.33

Rounding off to nearest whole number = 133

Hence,

133 pieces of 15cm can be cut from the ribbon.

Elissa can cut 133 ribbons from 20 meters long ribbon and this can be determined by using the unitary method.

Given :

Elisse has 20 meters of ribbon.

The following steps can be used to determine the total number of ribbons of length 15 cm can be cut from 20 meters ribbon:

Step 1 - Remember 1 meter is 100 cm.

Step 2 - If 1m is 100 cm then 20m is equal to:

[tex]=20\times 100[/tex]

= 2000 cm

Step 3 - Elisse cut 15cm long ribbon. So, the total number of ribbons she can cut is:

[tex]=\dfrac{2000}{15}[/tex]

Simplify the above expression.

= 133.334

[tex]\approx[/tex] 133

So, she can cut 133 ribbons from 20 meters long ribbon.

For more information, refer to the link given below:

https://brainly.com/question/16807456

Answer:

18.50 * 20% = 3.7

18.50 - 3.7 = 14.8

The price of the shirt is $14.80

Step-by-step explanation:

Answer:

13.70

Step-by-step explanation:

18.50 times .20 gives u 3.7 so 14.80

Answer:

None of the above

The answer is 572

Step-by-step explanation:

Hope this helps! :)

Answer:

1332

Step-by-step explanation:

please tell me if wrong

Answer:

0

Step-by-step explanation:

0

Answer: x= 50

Step-by-step explanation:

hope i helped

Answer:

B 113 cm^2

Step-by-step explanation:

Answer:

0.67

Step-by-step explanation:

The probability that the event will not happen is 1 - 0.33 and that is 0.67

Answer: I don’t understand the question??

Step-by-step explanation: Can you say the question again like the same way the homework does

Answer:The answer is wrong

Explanation: When it says 3/4 it's saying that their were more chocolate cupcakes that were iced than there was vanilla.

Answer:

1. 60 F

2.days- 2, 4, 6

3. yes, the function inputs the time of day and predicts the temperature

4. No, the temperature is function of the time of day

Answer:

68 degrees

Step-by-step

22 degrees +B=90 degrees

B=68

Answer:

They got 14 books at $22 and 21 books at $34.

Step-by-step explanation:

From the information given, you can write the following expressions:

x+y=35 (1)

22x+34y=1022 (2), where:

x is the number of books that cost $22

y is the number of books that cost $34

First, you can solve for x in (1):

x=35-y (3)

Then, you can replace (3) in (2) and solve for y:

22(35-y)+34y=1022

770-22y+34y=1022

12y=1022-770

12y=252

y=252/12

y=21

Finally, you can replace the value of y in (3) to find x:

x=35-y

x=35-21

x=14

According to this, the answer is that they got 14 books at $22 and 21 books at $34.

Answer:

18 pages

Step-by-step explanation:

20 : 2 = 10 minutes

12 : 2 = 6 pages

10 x 3 = 30 minutes

3 x 6 = 18 pages

Answer: 62.5 miles

2cm / 25 miles = 5cm / x

Cross multiply

125 = 2x

x = 62.5 miles

Answer:

4

Step-by-step explanation:

Make a line through a addition, subtraction, division, or multiplication sign and on each side of the line is a number and each number is a term.

Answer:

a. External radius is 0.5 m.

b. Internal radius is 0.45 m.

c. Volume of concrete necessary to make one pipe is 0.37 [tex]m^{3}[/tex].

Step-by-step explanation:

a. It can be observed that the diameter of the pipe is 1 m.

External radius = [tex]\frac{diameter}{2}[/tex]

          = [tex]\frac{1}{2}[/tex]

          = 0.5

External radius = 0.5 m

b. Internal radius of the pipe can be determined by;

Internal radius = [tex]\frac{internal diameter}{2}[/tex]

But,

Internal diameter = 1 m - (2 x 0.05 m)

                      = 1 m - 0.10 m

                      = 0.9 m

Internal diameter = 0.9 m

So that,

Internal radius = [tex]\frac{0.9}{2}[/tex]

                        = 0.45

Internal radius = 0.45 m

c. Volume of concrete required = [tex]\pi[/tex][tex]r_{e} ^{2}[/tex]h - [tex]\pi[/tex][tex]r_{i} ^{2}[/tex]h

where [tex]r_{e}[/tex] is the external radius, and [tex]r_{i}[/tex] is the internal radius.

Volume of concrete required = [[tex]\frac{22}{7}[/tex] x [tex](0.5)^{2}[/tex] x 2.5] - [[tex]\frac{22}{7}[/tex] x [tex](0.45)^{2}[/tex] x 2.5]

                                                = 1.9643 - 1.5911

                                                = 0.3732

The volume of concrete necessary to make one pipe is 0.37 [tex]m^{3}[/tex].

Answer:

If you´re solving for the value of y, it´s 5/6

Step-by-step explanation:

-3(4y-5+0)-3y=0

-12y+15-0-3y=0

-15y+15-3y=0

      -15       -15

-15y-3y=-15

-18y=-15

-18    -18

y=-15/-18 (simplified is 5/6)

Answer: 0.87 percent are brick houses

Step-by-step explanation:

Step-by-step explanation:

x=5,y=-1

6(5)-3(-1)=30+3=33

answer G .33

Answer:

10.16% probability that at most 6 trains will pass his house in a 12-hour time period

Step-by-step explanation:

We are dealing with the mean during a period of time, so we use the Poisson distribution to solve this question.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

In which

x is the number of sucesses

e = 2.71828 is the Euler number

[tex]\mu[/tex] is the mean in the given interval.

Colby has noticed that 21 trains pass by his house daily (24 hours)

We are working with 12 hour periods(half of 24), so [tex]\mu = \frac{21}{2} = 10.5[/tex]

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

What is the probability that at most 6 trains will pass his house in a 12-hour time period

[tex]P(X \leq 6) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)[/tex]

So

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

[tex]P(X = 0) = \frac{e^{-10.5}*(10.5)^{0}}{(0)!} = 0[/tex]

[tex]P(X = 1) = \frac{e^{-10.5}*(10.5)^{1}}{(1)!} = 0.0003[/tex]

[tex]P(X = 2) = \frac{e^{-10.5}*(10.5)^{2}}{(2)!} = 0.0015[/tex]

[tex]P(X = 3) = \frac{e^{-10.5}*(10.5)^{3}}{(3)!} = 0.0053[/tex]

[tex]P(X = 4) = \frac{e^{-10.5}*(10.5)^{4}}{(4)!} = 0.0139[/tex]

[tex]P(X = 5) = \frac{e^{-10.5}*(10.5)^{5}}{(5)!} = 0.0293[/tex]

[tex]P(X = 6) = \frac{e^{-10.5}*(10.5)^{6}}{(6)!} = 0.0513[/tex]

[tex]P(X \leq 6) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) = 0 + 0.0003 + 0.0015 + 0.0053 + 0.0139 + 0.0293 + 0.0513 = 0.1016[/tex]

10.16% probability that at most 6 trains will pass his house in a 12-hour time period

Answer:

3

Step-by-step explanation:

Answer:

-7

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