Final answer:
Drawing a model to show the relationship between feet and inches involves using the conversion factor between these units (1 foot = 12 inches) and applying scales for practical conversions, such as the examples of Asharah and Kenya's model cars, which translate real-life measurements into manageable sizes for scale models.
Explanation:
To draw a model that shows the relationship between feet and inches, particularly in the context of scale models as mentioned in the examples of Asharah and Kenya's model cars, you would first identify the conversion factor between feet and inches, which is 1 foot equals 12 inches. The scales given for the models represent this relationship in a condensed form tailored to small, manageable models of larger objects.
For Asharah's model, which uses a scale of 1/4 inch = 1 foot, to find the length of her model car which is 12 feet in real life, you multiply 12 (the actual length in feet) by 1/4 (the scale in inches per foot) resulting in 3 inches.For Kenya's model, with a scale of 1/2 inch = 1 foot, you do a similar calculation: multiply the real length of the car, 12 feet, by 1/2 to get the model length which is 6 inches.These examples illustrate how to create a simple model or drawing that demonstrates the relationship between two different units of measurement by using scale factors.
Ron walk 0.5 mile on the track in 10 minutes Stevie walk 0.25 miles on the track in six minutes find the unit rate for each walker in miles per hour who is a fast walker
Whats not an example of square root
I don't get how to do this. Please Explain step-by-step please.
(-8x³y²)² × 2x²y⁶
--------------------------
32x⁸y³
Angelo says that if you know one unit rate in a proportional relationship, the other unit rate is always the multiplicative inverse of the unit rate you know. Is Angelo correct? Explain.
. 14 is 40% of ...?
. 45 is 60% of ...?
. 60 is 40% of ...?
EXPLAIN to me how you got the answer
An alloy consists of nickel, zinc, and copper in the ratio 2:7:9. How much of each metal is needed to make 3.6 kg of this alloy?
Answer
Find out the how much of each metal is needed to make 3.6 kg of this alloy .
To proof
As given
An alloy consists of nickel, zinc, and copper in the ratio 2:7:9 .
This shows that an alloy contains 18 parts and assume one part of alloy be u .
Thus
An alloy consists of nickel = 2u
An alloy consists of zinc = 7u
An alloy consists of copper = 9u
As given
Total weight of alloy = 3.6 kg
Thus equation becomes
2u + 7u + 9u = 3.6
18u = 3.6
[tex]u = \frac{3.6}{18}[/tex]
u = 0.2 kg
An alloy consists of nickel = 2 × 0.2
= 0.4 kg
An alloy consists of zinc = 7 × 0.2
= 1.4 kg
An alloy consists of copper = 9 × 0.2
= 1.8 kg
Hence proved
To make 3.6 kg of alloy in the given ratio, 400 grams of nickel, 1400 grams of zinc and 1800 grams of copper are required.
Explanation:The question is asking how much of each metal, namely nickel, zinc, and copper, is needed to make 3.6 kg of an alloy with a ratio 2:7:9. To solve this, first, we have to understand that the ratio represents relative amounts of each metal, not their exact weights. The entire alloy is made up of 2 parts nickel, 7 parts zinc, and 9 parts copper - a total of 18 parts. We can find the weight equivalent to one part by dividing the total weight of the alloy - 3.6 kg or 3600 grams - by 18. This gives us 200 grams as the weight of one part. To find the weight of each metal needed, we multiply the weight of one part by the number of parts in the ratio: nickel is 2 * 200 = 400 grams, zinc is 7 * 200 = 1400 grams, and copper is 9 * 200 = 1800 grams.
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A fair coin is flipped 100 times and the results are recorded in the table below.
Which statement is correct?
A) The theoretical probability of the coin landing on heads is 7/20.
B) The experimental probability of the coin landing on tails is 1/2.
C) The theoretical probability of the coin landing on tails is 1/2.
D) The experimental probability of the coin landing on heads is 13/20.
Option C) is the correct statement as the Theoretical Probability of the coin landing on tails is 1/2
What do we mean by theoretical probability?Theoretical probability is the ratio of favorable outcomes to the total number of outcomes.
What do we mean by experimental probability?Experimental probability or empirical probability is based on a particular experiment using the same formula.
How do we determine probabilities by the question?Experimental probability of getting heads
= Frequency of heads/Total observations
= 35/100 = 7/20
Experimental probability of getting tails
= Frequency of tails/Total observations
= 65/100 = 13/20
The theoretical probability of getting a heads
= Favorable outcomes of getting heads/Total possible outcomes
= 1/2
The theoretical probability of getting a tails
= Favorable outcomes of getting tails/Total possible outcomes
= 1/2
When we cross-check with the options,
A) Incorrect, as the Theoretical Probability of the coin landing on heads = 1/2
B) Incorrect, as the Experimental Probability of the coin landing on tails = 13/20
C) Correct, as the Theoretical Probability of the coin landing on tails = 1/2
D) Incorrect, as the Experimental Probability of the coin landing on heads = 7/20
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Rachel and her cousin, Lena, live in different cities that are about 100 miles apart. On a map, the two cities measure 5 inches apart. What is the scale factor used for the map?
X+4y=6 y=-x+3 solve each system of linear equations by substitution
Help pls hello pls hello hello
Determine if each function is linear or nonlinear.
Select each function and put it in the correct column its suppose to go in. Ex: A is linear or non.
Linear:
Non-Linear:
A) y = x/2 - 19
B) 2y = x to the 2nd power
C) 13y = 1/3x + 5
D) y = x + √25
E) √y = x
Please help with the following:
1. For what value(s) of "r" is 3r-6=7+3r
A) all real numbers
B)all negative numbers
C)0
D) no values of r
2. What is the range of f(x)=[[x-1]]?
A)all reals
B)all integers
C)all real > or = 1
D)all integers > or = 1
What are the x-intercept and the y-intercept of the graph of y=14x+8 ? Enter your answers in the boxes. x-intercept: y-intercept:
Which of the following best defines 3 to the power of 2 over 3?
Square root of 9
Cube root of 9
Cube root of 3
Square root of 3
Answer:
The cube root of 9
Step-by-step explanation:
Cual es el resultado de la suma de polínomios (5a + a2 - 14) (10a + a2 + 39)
Five less than the product of a number n and -6 is at least 8.
A) 5-(-6n)≥8
B -n/6-5≥8
C) -6n-5≥8
The required inequality is -6n - 5 ≥ 8. Option (C) is correct.
What is inequality?Inequality shows relation between two expression which are not equal to each others.
Given that,
When 5 is subtracted from the product of number n and -6 is at least 8.
The product of number n and - 6 = -6n
Subtract 5 from product of number n and -6 = -6n - 5
To write the inequality that shows that 5 less than -6n is at least 8,
Implies that, -6n - 5 can be grater than or equal to 8.
The inequality can be expressed as,
-6n - 5 ≥ 8
Hence, option (C) is correct.
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solve each equation 2n-5=21
There are 46 legs in a zoo exhibit. The number of 2 legged animals is 2 more then the number of 4 legged animals. How many of each is in the exhibit?
what does a and b equal in this equation.
a − 3b = 16
what is the place value of the diget 6 in the decomal number 4.769
How do you multiply 62.19 times 32.5?
Use the distributive property to solve each problem 5x13
To solve 5x13 using the distributive property, we can distribute 5 to both terms inside the parentheses and simplify the expression.
Explanation:Using the distributive property, we can solve 5x13 as:
5x13 = (5 x 10) + (5 x 3)
= 50 + 15 = 65.
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whats 40a-8 factorize
The greatest common factor of 24 and 36 is the least common multiple of a pair of numbers. Which two numbers could they be?
A small business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time period?
Consider the division problem 1/2 ➗ 3. Describe a situation this division could represent. Then draw a diagram to represent the division. Then find the solution.
The formula for dividing fractions.
= a/b ÷ c/d
= a/b x d/c
= (axd) / (bxc)
The 1/2 ÷ 3 situation that represents can be:
Half of the cake is left and the leftover cake is divided among 3 people.
The solution of 1/2 ÷ 3 is 1/6
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
1/2 ÷ 3
This expression situation can be represented as:
Half of the cake is left and the leftover cake is divided among 3 people.
The formula for dividing fractions.
= a/b ÷ c/d
= a/b x d/c
= (axd) / (bxc)
The solution for 1/2 ÷ 3.
= (1/2) / 3
= 1/(2x3)
= 1/6
Thus,
The 1/2 ÷ 3 situation that represents can be:
Half of the cake is left and the leftover cake is divided among 3 people.
The solution of 1/2 ÷ 3 is 1/6
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24/4 = ?/1. 40/5 = ?/1
You can measure length with the greatest precision using a tape measure marked in _____. A. meters B. kilometers C. millimeters D. centimeters
a square room has a tile floor with a hundred square tiles how many tiles are along the edge of the room
The number of tiles along the edge of a square room with a hundred square tiles is 10.
First, we need to recognize that a square room means all sides are of equal length. Since the room is tiled with square tiles throughout, the number of tiles along one edge will be the same as the other.
If there are a hundred square tiles in total, this represents the area of the square which is the product of the lengths of its sides (since the area of a square is given by side x side).
To find the length of a side, we take the square root of the total number of tiles. In this case, the square root of 100 is 10.
Therefore, there are 10 tiles along the edge of the square room.
Nathan brought a pair of boots for $80 and 1 shirt for $20. the sales tax is 5%. how much did Nathan pay for all the items including tax ?