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3 years ago

5

Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the block

s in pounds.

1 answer:

Alexandra [31]3 years ago

6 0

Find Total weight at left side

$\\ \sf\longmapsto 6(1lb)=6lbs$

Now

Per block weight at right side

$\\ \sf\longmapsto \dfrac{6}{4}=1.5lbs$

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Avery measured a line to be 14.7 inches long. If the actual length of the line is 14.5 inches, then what was the percent error o

seraphim [82]

Answer:

1.4%

Step-by-step explanation:

Avery's error was ...

measured - actual = 14.7 in - 14.5 in = 0.2 in

As a fraction of the actual length, that is ...

(0.2 in)/(14.5 in) × 100% ≈ 1.4%

The measurement error was about 1.4%.

7 0

3 years ago

Calculate the first and second velocities of the car with three washers attached to the pulley, using the formulas v1 = 0. 25 m

Travka [436]

The first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.

Given data:

The value of the first distance is, d1 = 0.25 m.

The value of the second distance is, d2 = 0.50 m.

<h3>What is velocity?</h3>

The ratio of distance covered by an object in a specific direction and the time taken to cover the distance is known as the velocity of the object. Mathematically, the expression for the velocity is,

v = d/t

Here, d is the distance covered.

And t is the average time taken to cover the distance.

Then the first velocity of the car at 0.25 m is,

v1 = d1/t1

v1 = 0.25 / t1

Here, t1 is the average time for the first distance.

And the second velocity of the car with four washers at the 0. 50 m mark is,

v2 = d2/t2

v2 = 0.50 /t2

here, t2 is the average time for the second distance.

Thus, we can conclude that the first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.

To know more about Velocity click the link given below.

brainly.com/question/25796948?

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3 years ago

Joel biked 9 miles east and then 12 miles north. If he

Anastasy [175]

Answer:

36 miles

Step-by-step explanation:

His entire journey, represented with a diagram, is in the shape of a right angle triangle.

We need to first find the hypotenuse of the triangle, then, add all the sides together:

hyp² = opp² + adj²

hyp² = 9² + 12²

hyp² = 81 + 144 = 225

Find the square root of both sides:

hyp = 15 miles

Therefore, adding the three sides together:

Total distance traveled = 9 + 12 + 15

Total distance traveled = 36 miles

He would ride 36 miles altogether.

5 0

3 years ago

Read 2 more answers

Explain why 2n+1 must be an odd number

Lorico [155]

If is an integer (a whole number), then the expression represents an even number, because even numbers are the multiples of 2. The expressions 2 n − 1 and 2 n + 1 can represent odd numbers, as an odd number is one less, or one more than an even number.

4 0

3 years ago

What is the mean for the data set? {39, 43, 46, 86, 22, 39, 75}

Mama L [17]

Mean is when you add up all the numbers, then divide by how many numbers there are

<span>39 + 43 + 46 + 86 + 22 + 39 + 75 = 340

340 </span>÷ 7 (because there are 7 numbers) = 48.57

6 0

3 years ago