a carpenter needs 30 rafters, each 380cm long. find the total length of rafters in meters. (2 steps)

The area of a rectangle is the product of the width and the length

The required values are;

a. Please find attached the diagram of the table attached

b. 6 + 2·x

c. x represents the width of the leaves

Reason:

Known parameter

Length of the table = 6 feet

Width of the table = 3 feet

Number of leaves = 2

Length of the sides of the leaves = 3 feet

a. Please find attached the diagram of the table, with leaves drawn with MS Visio

Total length = (6 + 2·x) feet

Width = 3 feet

Area, A = (6 + 2·x) ft. × 3 ft. = (18 + 6·x) ft.²

b. The expression that represents the length of the table is 6 + 2·x

c. The variable, x, represents the width of the leaves

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https://brainly.com/question/21851016

Dawn can buy 5 pounds of apples for $12.45

We have to find how many pounds can she buy for $1.00

Now cost price for 5 pounds = $12.45

In $12.45 , Dawn can buy 5 pounds of apple

So, In $ 1 , Dawn can buy 5/12.5 pound of apple

= 0.4 pound of apple

Therefore dawn can buy 0.4 pound of apple for $1.00

Hope this helps..!!

Thank you :)

Final answer:

Elizabeth's speed in miles per hour is calculated using the formula for speed, which is distance divided by time. By setting up the proportion with the given numbers, it's determined that Elizabeth runs at a speed of 7.5 miles per hour.

Explanation:

To calculate Elizabeth's speed in miles per hour, we need to use the information that 3/4 mile is covered in 1/10 of an hour and then find out how many miles would be covered in one full hour. To do this, we set up a proportion where the distance (miles) is divided by the time(hours).

The formula for finding speed is:

Speed = Distance / Time

Using the given numbers:

Speed = (3/4) miles / (1/10) hour

By performing the division, we get:

Speed = (3/4) × (10/1) miles/hour

Speed = (30/4) miles/hour

Speed = 7.5 miles/hour

Therefore, Elizabeth runs at a speed of 7.5 miles per hour.

Solve for y:

[tex]\dfrac{2}{3}x+\dfrac{1}{3}y=2\ \ \ \ |\cdot3\\\\2x+y=6\ \ \ \ |-2x\\\\y=-2x+6[/tex]

It's the slope intercept form of a straight line.

We need only two points to draw a straight line.

[tex]for\ x=0\to y=-2(0)+6=0+6=6\to(0;\ 6)\\for\ x=3\to y=-2(3)+6=-6+6=0\to(3;\ 0)[/tex]

Look at the picture.

Final answer:

To determine the time Kyra spends running, the time spent on stretching and showering is subtracted from the total gym time, resulting in 65 minutes of running.

Explanation:

Kyra exercises at the gym for a total of 1 2/3 hours. To calculate the time she spends running, we need to subtract the time spent on other activities from the total exercise time. First, convert 1 2/3 hours to an improper fraction: (1 × 3) + 2 = 3 + 2 = 5/3 hours. Now, let's convert this into minutes: 5/3 hours × 60 minutes/hour = 100 minutes.

Next, calculate the total time spent stretching and showering: (1/4 hour × 60 minutes/hour) + (1/3 hour × 60 minutes/hour) = 15 minutes + 20 minutes = 35 minutes.

Finally, to find out how much time Kyra spends running, subtract the time spent on stretching and showering from the total exercise time: 100 minutes - 35 minutes = 65 minutes spent running

Kyra spends 1 hour and 5 minutes running at the gym.

To find out how much time Kyra spends running, we need to subtract the time she spends stretching and showering from the total time she exercises at the gym.

Given that Kyra spends 1 2/3 (or 5/3) hours at the gym, and 1/4 hour stretching and 1/3 hour showering, we can calculate:

Total time Kyra spends stretching and showering = 1/4 + 1/3 = 3/12 + 4/12 = 7/12 hours

Time Kyra spends running = Total time at the gym - Total time Kyra spends stretching and showering = 5/3 - 7/12 = 20/12 - 7/12 = 13/12 hours.

Therefore, Kyra spends 13/12 hours or 1 hour and 5 minutes running.

Answer:

1A

2D

3D

4A&D

5D

6C

7A

8C

9C

10A

Final answer:

It will take approximately 20.2 seconds for the water bottle rocket to return to the ground after being launched, determined by solving the given quadratic equation by completing the square.

Explanation:

The question asks how long it will take for a water bottle rocket launched from a rooftop to return to the ground, given the equation h = -16t2 + 320t + 32, where h is height in feet and t is time in seconds. To find when the rocket hits the ground, we need to solve for t when h equals zero by completing the square.

First, rearrange the equation: 0 = -16t2 + 320t + 32.

Factor out -16 to simplify: 0 = -16(t2 - 20t - 2).

To complete the square, take half of the -20, square it and add to both sides: 100 + 2 = -16(t2 - 20t + 100).

This simplifies to 0 = -16((t - 10)2 + 98) and then (t - 10)2 = -98/(-16).

Solve for t: t = 10 + sqrt(98/16), which gives approximately t = 20.2 seconds.

Therefore, it will take approximately 20.2 seconds for the water bottle rocket to return to the ground.

Answer:

27%

Step-by-step explanation:

I really think it is 27%

Answer:

C. Yes, at negative and positive x-coordinates

Step-by-step explanation:

I got it right on the test.

Hope this helps :)

Answer:

30%

Step-by-step explanation:

The increase was 15/30 = 50%,

The decrease was 9/45 = 20%.

50% - 20% = 30%

Answer:

yea

Step-by-step explanation:

Answer:

We cant see anything

Step-by-step explanation:

Answer:

The expression is 300÷t.

Step-by-step explanation:

Number  of chairs Gretchen has = 300.

Number of tables Gretchen has = t.

It is given that the chairs are evenly distributed among the given number of tables that is each table will have the equal number of chairs.

The number of chairs she should put can be found by the expression 300÷t.

Gretchen should distribute 300 chairs evenly across t tables, which is represented by the expression 300 / t, where t is the number of tables.

To solve the problem of how many chairs Gretchen should put at each table, we need to distribute the total number of chairs evenly among the tables. The expression for this will be:

Chairs per table = Total number of chairs / Number of tables

In Gretchen's case, she has a total of 300 chairs that need to be distributed evenly. Therefore, the expression is:

Chairs per table = 300 / t

Here, t represents the total number of tables. We do not know the exact number of tables, as it is not provided in the question, so we use t as a variable to represent this unknown value.

Answer: pretty sure it´s B