To determine how many ones blocks you need to add to change the model from 128 to 146, you can subtract 128 from 146.

146 – 128 = 18

Since the options provided are 10, 12, 14, and 16, it looks like there might be an error in the options, as none of them corresponds to 18.

If you’re able to check with your instructor or look into the question further, that would be great!

If you’re looking for more in-depth help, feel free to check the extended services page!

1. Usually, when you add 99 to a number, you need to add 100 and then subtract 1.

– Explanation: Adding 99 can be thought of as adding 100 and then just taking away 1, which simplifies the calculation.

2. Usually, when you add 100 to a number, you increase the number by one hundred.

– Explanation: Adding 100 directly increases the total value of the number by 100, which is straightforward.

3. When you subtract 1 from a number, you decrease the number by one.

– Explanation: Subtracting 1 means taking one unit away from the original number, which lowers its value.

These steps help in understanding simple arithmetic operations better! If you have more questions or need further explanations, feel free to ask!

If you change the sign of a point’s y-coordinate, the correct answer is: The point will cross over the X-axis.

Explanation: When you change the sign of the y-coordinate, you effectively reflect the point across the X-axis. For example, if you have a point (x, y) and you change it to (x, -y), its y-coordinate has switched from positive to negative or vice versa, which means it moves from above the X-axis to below it or the other way around. This results in the point crossing the X-axis.

To solve for ( f ) in the equation ( f = -2 + frac{4}{5}f – 3 ), follow these steps:

1. Combine like terms on the right side:

[

f = -2 – 3 + frac{4}{5}f

]

[

f = -5 + frac{4}{5}f

]

2. Move ( frac{4}{5}f ) to the left side by subtracting it from both sides:

[

f – frac{4}{5}f = -5

]

3. This simplifies to:

[

frac{1}{5}f = -5

]

4. To isolate ( f ), multiply both sides by 5:

[

f = -25

]

So the solution is:

[

f = -25

]

If you have more questions or need additional explanations, feel free to ask!

To solve for ( k ) in the equation:

[

frac{5k}{3} – 3 = -frac{1}{3} + 2k

]

First, let’s eliminate the fractions by multiplying the entire equation by 3:

[

3 left( frac{5k}{3} right) – 3 cdot 3 = 3 left( -frac{1}{3} right) + 3 cdot 2k

]

This simplifies to:

[

5k – 9 = -1 + 6k

]

Next, let’s isolate ( k ). We can rearrange the terms by subtracting ( 5k ) from both sides:

[

-9 = -1 + 6k – 5k

]

This simplifies to:

[

-9 = -1 + k

]

Now, add 1 to both sides:

[

-9 + 1 = k

]

This results in:

[

k = -8

]

So, the solution is:

[

k = -8

]

Feel free to reach out if you have more questions or need further help!

To solve for ( q ) in the equation ( 3 – q = frac{3}{4} + frac{3}{2} q ), let’s follow these steps:

1. First, rearrange the equation to isolate ( q ). Start by getting all the terms with ( q ) on one side:

[

3 – frac{3}{4} = q + frac{3}{2}q

]

2. Calculate ( 3 – frac{3}{4} ):

Convert 3 to have a denominator of 4:

[

3 = frac{12}{4}

]

Thus,

[

frac{12}{4} – frac{3}{4} = frac{9}{4}

]

3. Now, combine the ( q ) terms on the right:

[

q + frac{3}{2}q = frac{2}{2}q + frac{3}{2}q = frac{5}{2}q

]

4. Now, we have the equation:

[

frac{9}{4} = frac{5}{2}q

]

5. To solve for ( q ), multiply both sides by the reciprocal of ( frac{5}{2} ), which is ( frac{

To solve the equation ( frac{1}{2} + 8 = 3 – frac{1}{3} v ), follow these steps:

1. Combine like terms on the left side:

[

frac{1}{2} + 8 = frac{1}{2} + frac{16}{2} = frac{17}{2}

]

So, the equation becomes:

[

frac{17}{2} = 3 – frac{1}{3} v

]

2. Isolate the term with ( v ) on one side. First, subtract 3 from both sides:

[

frac{17}{2} – 3 = -frac{1}{3} v

]

Convert 3 to a fraction with a denominator of 2:

[

3 = frac{6}{2} Rightarrow frac{17}{2} – frac{6}{2} = frac{11}{2}

]

So, now we have:

[

frac{11}{2} = -frac{1}{3} v

]

3. Multiply both sides by ( -3 ) to solve for ( v ):

[

v = -3 times frac{11}{2} =

To solve for ( f ) in the equation ( 2 – frac{1}{4} = f – frac{3}{4} + 3 ), follow these steps:

1. Simplify the left side:

( 2 – frac{1}{4} = frac{8}{4} – frac{1}{4} = frac{7}{4} ).

2. Rewrite the equation:

( frac{7}{4} = f – frac{3}{4} + 3 ).

3. Combine 3 on the right side:

Convert 3 to quarters: ( 3 = frac{12}{4} ).

Now the equation is:

( frac{7}{4} = f – frac{3}{4} + frac{12}{4} ).

4. Combine ( -frac{3}{4} ) and ( frac{12}{4} ):

( -frac{3}{4} + frac{12}{4} = frac{9}{4} ).

So now we have:

( frac{7}{4} = f + frac{9}{4} ).

5. Isolate ( f ):

Subtract ( frac{9}{4} ) from both sides:

( f =

To solve for ( z ) in the equation:

[

frac{2}{3} = 2 + frac{3}{2} z – frac{1}{2}

]

First, simplify the right side of the equation:

1. Combine the constant terms ( 2 ) and ( -frac{1}{2} ):

[

2 – frac{1}{2} = frac{4}{2} – frac{1}{2} = frac{3}{2}

]

So the equation becomes:

[

frac{2}{3} = frac{3}{2} + frac{3}{2} z

]

2. Now, isolate the term with ( z ). Subtract ( frac{3}{2} ) from both sides:

[

frac{2}{3} – frac{3}{2} = frac{3}{2} z

]

3. To combine the fractions on the left, find a common denominator (which is 6):

[

frac{2}{3} = frac{4}{6}, quad frac{3}{2} = frac{9}{6}

]

So,

[

frac{4}{6} – frac{9}{6} = frac{-

To solve for ( a ) in the equation ( frac{4}{5} – 8 = a + 2 ), follow these steps:

1. Isolate ( a ): Start by simplifying the left side of the equation.

[

frac{4}{5} – 8

]

To perform this subtraction, convert 8 into a fraction with a common denominator. Since 8 can be expressed as ( frac{40}{5} ):

[

frac{4}{5} – frac{40}{5} = frac{4 – 40}{5} = frac{-36}{5}

]

2. Set up the equation: Now substitute back into the equation:

[

frac{-36}{5} = a + 2

]

3. Isolate ( a ): To solve for ( a ), subtract 2 from both sides. First, convert 2 into a fraction:

[

2 = frac{10}{5}

]

Thus, we have:

[

a = frac{-36}{5} – frac{10}{5} = frac{-36 – 10}{5} = frac{-46}{5}

]

So, ( a = frac{-46}{5} ).

In decimal form, this would

To solve the equation ( frac{2}{5} n + 3 – frac{7}{10} n = frac{3}{5} – 3n ), we will follow these steps:

1. Combine like terms: Start by bringing all the terms involving ( n ) to one side and the constant terms to the other side.

Let’s convert ( frac{7}{10} n ) to have a common denominator with ( frac{2}{5} n ). Since ( frac{2}{5} = frac{4}{10} ), we can rewrite the equation:

[

frac{2}{5} n – frac{7}{10} n + 3 = frac{3}{5} – 3n

]

This can be rewritten as:

[

frac{4}{10} n – frac{7}{10} n + 3 = frac{3}{5} – 3n

]

Combine ( n ) terms:

[

-frac{3}{10} n + 3 = frac{3}{5} – 3n

]

2. Isolate ( n ): We’ll move ( -3n ) to the left side and ( 3 ) to the right side:

[

-frac

The correct answer is: 3. skewed, median, mean.

Explanation: If the distribution of backpack sizes is skewed, it suggests that the sizes are not evenly distributed and may have a longer tail on one side. In such cases, the median is a better measure of central tendency because it is less affected by extreme values compared to the mean. Therefore, while the median provides a more accurate reflection of the typical size, the mean could be misleading due to skewness.

The correct answer is: 4. skewed; is.

Explanation: If the distribution of pH levels is skewed, it means that it does not follow a symmetrical pattern and may have a long tail on one side. In cases of skewed distributions, the mean can still be an appropriate measure of center, but it may not fully represent the typical pH level since it can be influenced by extreme values. In this context, it suggests that the mean is relevant despite the skewness.

The correct answer is 1. approximately symmetric; mean and median.

Explanation:

When a distribution is approximately symmetric, it means that the data values are evenly distributed around the center. In this case, both the mean (average) and the median (middle value) are appropriate measures of center because they will be similar and provide a good representation of the central tendency of the data. If you have more questions or need further assistance, feel free to ask!

The correct statements about a career as a materials scientist are:

B – People with this occupation use sophisticated laboratory instruments.

E – People with this occupation develop new products or improve existing ones.

Explanation: Materials scientists primarily work in laboratories where they analyze and develop materials using advanced technology and instruments. They focus on creating new materials or enhancing the properties of existing ones to meet specific needs, which is a fundamental part of their role.

If you have more questions or need further clarification, feel free to ask!

To determine how Matt feels based on the options provided, we need to analyze his emotions in the context of the situation regarding Skeena and Uncle Stan.

The correct answer is A: He is worried that Skeena might not survive.

Explanation: If the text shows that Matt is concerned or anxious about Skeena’s well-being, it indicates that his primary emotion in that moment is worry. The other options imply anger, fear of Uncle Stan, or sadness about trust, but the most direct emotion related to Skeena’s situation is worry regarding her survival.

If you need more detailed support or analysis, consider checking the extended services page!

The correct answer is C: He sees Skeena’s broken chain on the ground.

Explanation: In the context of the situation, Matt’s glance towards Skeena’s house reveals the immediate issue with Skeena, which is her broken chain, indicating something might have gone wrong. This moment is critical because it prompts concern for Skeena’s safety. If you have further questions about this scene or want more details, feel free to ask!

The correct answer is C: He sees Skeena’s broken chain on the ground.

In the context of the narrative, while Matt is feeding Kyuk, the moment he glances at Skeena’s house reveals a critical detail about Skeena’s situation. The broken chain indicates that something is wrong and sets the stage for the unfolding events, emphasizing the urgency of the situation.

If you have more questions or need further assistance, feel free to ask!

The correct answer is B) Rudy acts like she will attack Skeena and E) Skeena growls at Rudy and wants to fight her.

Explanation: These details demonstrate the aggression and tension between Rudy and Skeena, indicating that choosing Rudy would not be suitable for Matt. The conflict between the two dogs suggests that their relationship would be problematic for the team, making Skeena the better choice for lead dog.

The correct answer is A) Young children must first develop the ability to create memories.

Explanation: Childhood amnesia refers to the phenomenon where individuals are unable to recall events from early childhood, typically before the age of 3 or 4. This is primarily because young children have not yet developed the cognitive structures and abilities required to form and store long-term memories effectively. Unlike adult amnesia, which is often triggered by illness or injury to specific areas of the brain responsible for memory, childhood amnesia is a normal part of development as memory systems mature over time.

The correct answer is C personal narratives.

Personal narratives are stories that individuals tell about their own experiences. The author suggests that as children learn to tell their own stories, they are developing memories and understanding their experiences better, which aligns with the nature of personal narratives. If you have any more questions or need further clarification, feel free to ask!

The correct answer is B concept of themselves as separate from others.

The “mirror test” is designed to assess self-awareness in children (and some animals) by determining whether they can recognize themselves in a mirror. If a child shows recognition, it indicates that they understand they are a distinct entity, separate from others, which is a fundamental aspect of self-concept and identity development.