What is the constant of proportionality in the equation y=5.5x

Adding and subtracting decimals are easy to understand you are just adding a decimal point

For example, 2 plus 2 equals 4

2.0 plus 2.0 equals 4.0

41 lbs/hr for this answer

Answer:

24 posts

Step-by-step explanation:

Length = 8 yards

So, No. of parts of 1 yards in 8 yards = [tex]\frac{8}{1}= 8[/tex]

So, One each length there will be 8 posts including 2 corners

So, Total posts on 2 lengths = 8+8=16

Width = 6 yards

So, No. of parts of 1 yards in 6 yards = [tex]\frac{6}{1}= 6[/tex]

Excluding 2 corners, There will be 4 lamps on each width

So, Total posts on both widths excluding corners = 4+4=8

So, Total posts on fence = 16+8 = 24

Hence He used 24 posts .

the answer is 1296 i think i could be wrong

To create the ideal blend, the merchant should combine 40 pounds of coffee worth $3.00 per pound and 160 pounds of coffee worth $3.25 per pound.

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Let's call the amount of coffee worth $3.00 per pound "x" and the amount of coffee worth $3.25 per pound "y".

We know that the total amount of coffee is 200 pounds, so we can write the equation:

x + y = 200

We also know that the total cost of the coffee is $3.20 per pound times 200 pounds, or $640. So we can write another equation based on the cost:

3.00x + 3.25y = 640

Now we have two equations with two variables, so we can solve for x and y.

Let's start by solving for x in the first equation:

x + y = 200

x = 200 - y

Now we can substitute this expression for x into the second equation:

3.00x + 3.25y = 640

3.00(200 - y) + 3.25y = 640

600 - 3.00y + 3.25y = 640

0.25y = 40

y = 160

So we know that the merchant needs to use 160 pounds of coffee worth $3.25 per pound.

We can use the first equation to solve for x:

x + y = 200

x = 40

So the merchant needs to use 40 pounds of coffee worth $3.00 per pound.

Therefore, the merchant should use 40 pounds of coffee worth $3.00 per pound and 160 pounds of coffee worth $3.25 per pound to make the desired blend.

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Final answer:

The exponential form closest to the number 0.0432 is  4 times 10 to the power of negative 2, because it gives us 0.04 which is very close to 0.0432. So the correct option is A.

Explanation:

The student is asking which exponential form is closest to the number 0.0432. To express a number in scientific notation, we move the decimal point to the right or left to create a new number from 1 up to 10, and then we multiply this number by 10 raised to a power that corresponds to the number of places the decimal point was moved.

If we look at the options given:

Therefore, the correct answer is A) 4 times 10 to the power of negative 2, because it is the option closest to 0.0432.

To solve the given system of equations, we set y = x - 4 and y = -3x equal to each other to find x = 1 and subsequently y = -3, giving us the solution (1, -3). Other systems can be solved using methods such as elimination or substitution.

To solve the system of equations, let's start by setting up the equations provided:

1) y = x - 4

2) y = -3x

Since both equations equal y, we can set them equal to each other and solve for x:

x - 4 = -3x
4x = 4
x = 1

Now, we substitute x back into one of the original equations to find y:

y = 1 - 4
y = -3

The solution to the system of equations is (1, -3).

If we look at another set of equations mentioned in the question:

7x - 2y = 24
3x + 9y = 30

We can solve them using the method of elimination or substitution. For example, we can multiply the first equation by 3 and the second by 7, then subtract one from the other to eliminate one of the variables and solve for the other.

[tex]AnSwer[/tex]

A system of linear equation could only have 1 solution. This is because the straight lines will only have to meet, cross, or intersect each other once. 

There are many different methods in arriving to the final answer. However, errors cannot be perfectly avoided. One of these errors to mistakenly identify equations as linear. It is important that we know that the equations we are dealing with are of exact or correct  characteristics. 

Also, if she had used substitution method, she might have mistakenly taken the value of one variable for the other.

To get an overall average of 90% from his six tests, Tim needs to score an average of 95% on his next two tests.

The subject of the question is Mathematics, and it is relevant to the Middle School grade.

To figure out the average score Tim needs on his next two tests to achieve a 90% overall average, we first need to calculate the total score that he needs. As Tim is taking six tests in total and wants an average of 90%, the total score he needs is 6 * 90 = 540

Then, we need to subtract the sum of his scores from the first four tests, which are 82%, 90%, 78%, and 100%. The sum of these four scores is 350.

Now, subtract this sum from the total score he needs, which is 540 - 350 = 190. This means that the total score Tim needs from his next two tests combined is 190%

Finally, to get the average score he needs on each of these next two tests, we divide this total by 2. 190 ÷ 2 = 95. Therefore, Tim needs to score an average of 95% on his next two tests to get an overall average of 90%.

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Answer:

I believe the answer would be 5 toys soo yeah.

Step-by-step explanation:

90000 that's the answer

can the brainliest answer plz

The pitcher shown has a height of 10 inches and a volume of 64 oz. The pitcher has a shape of cylinder and the volume formula of cylinder is:

V = π r^2 h

So given volume and height, we can find for the radius:

64  = π r^2 (10)

r = 1.427

So for a 47 oz volume is poured out, what remains is:

V remain = 64 oz – 47 oz = 17 oz

So the height at a volume of 17 oz is:

17 = π (1.472)^2 h

h = 2.66 inches

To determine a function rule between the height of the juice and the amount poured out, we need additional specifics such as initial height and pitcher capacity. Without this, we cannot define the exact function or determine the juice height after pouring out 47 ounces.

To write a function rule that represents the relationship between the height of juice h in the pitcher and the amount of juice j poured out, we need additional information about the initial height of the juice when the pitcher is full and its capacity. Without this information, we cannot construct an exact function. Generally, if 'H' is the initial height and 'C' is the capacity of the pitcher in ounces, then the function could look something like h = H - (k x j), where 'k' is a constant that converts ounces to inches based on the shape of the pitcher.

Regarding the second part of the question, without a specific function or more information about the pitcher, we cannot determine the height of the juice after 47 ounces have been poured out.

The expression shows the difference in the lengths of the posters will be  0.85 - ( 1 - 0.55). The correct option is A.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Amanda's poster is 0.85 meters long. Orlando's poster is 0.55 meters less than 1 meter long.

Amanda's poster = 0.85 meters long

Orlando's poster = 0.55 meter less than 1 meter long: 1 meter - 0.55 meter = 0.45 meter

Orlando's poster = 0.85 - (1 - 0.55)

Therefore, the expression shows the difference in the lengths of the posters will be  0.85 - ( 1 - 0.55). The correct option is A.

The complete options are given below:-

A.0.85 - ( 1 - 0.55).

B. -0.85 + ( 1 - 0.55).

C. -0.85 - ( 1 - 0.55).

D. 0.85 + ( 1 - 0.55).

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The difference in lengths of the posters is 0.40 meters, calculated as [tex]\( |1 - 0.55 - 0.85| = 0.40 \)[/tex].

Step 1:

Find the length of Orlando's poster:

Orlando's poster is 0.55 meters less than 1 meter. Subtract 0.55 meters from 1 meter.

[tex]\[ \text{Length of Orlando's poster} = 1 - 0.55 \][/tex]

Step 2:

Calculate the difference in lengths:

Subtract the length of Amanda's poster (0.85 meters) from the length of Orlando's poster obtained in step 1.

[tex]\[ \text{Difference in lengths} = \text{Length of Orlando's poster} - \text{Length of Amanda's poster} \][/tex]

Step 3:

Perform the calculation:

[tex]\[ \text{Difference in lengths} = (1 - 0.55) - 0.85 \][/tex]

Step 4:

Simplify the expression:

[tex]\[ \text{Difference in lengths} = 0.45 - 0.85 \][/tex]

[tex]\[ \text{Difference in lengths} = -0.40 \][/tex]

Step 5:

Since negative length doesn't make sense, take the absolute value:

[tex]\[ \text{Difference in lengths} = |-0.40| = 0.40 \][/tex]

Step 6:

Conclusion:

The difference in lengths of the posters is 0.40 meters.

Answer:

The discount is 4584.375 p.

Step-by-step explanation:

Given :  The oil tank can take up to 1200 litre of oil. There are already 450 litres of oil in the tank.

The price of oil is 81.5p per litre . As a loyal customer, Mr Leonard gets a 7.5% discount on the price of the oil.

To find : How much discount does Mr Leonard get on this purchase?

Solution :

First we find out the number of litre required in the tank

Total capacity of tank = 1200 litre of oil

There are already 450 litres of oil in the tank.

The required oil is = 1200 L – 450 L = 750 L

The price of oil is 81.5 p per litre.

i.e, 1 liter oil price is = 81.5 p

For 750 liter oil price is = [tex]81.5\times 750=61125p[/tex]

There is 7.5% discount on the price of oil.

i.e, [tex]61125\times\frac{7.5}{100}=4584.375[/tex]

The discount is 4584.375 p.

The discount Mr Leonard receives on his purchase is  £45.84.

A discount is a reduction in the price of a good or service. After a discount, the price of an item becomes cheaper.

Quantity of oil that would be bought = capacity of the oil tank - oil already in the tank

1200 - 450 = 750 liters

Total cost of the 750 liters = total liters to be bought x cost per liter

750 x 81.5 = 61,125 p =£611.25

Value of the discount = 7.7% x £611.25 = £45.84

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The value of s (side) of rectangle is 8.66 inch.

Here,

The rectangle is divided into three squares.

The total area = 225 square inches.

We have to find the value of s (side).

What is area of square?

The area of square is the product of two equal side.

Now,

The rectangle is divided into three squares.

The total area is 225 square inches.

Hence, Area of rectangle = Total area of three squares

Let side of each square is ''a''

Then, Area of square = [tex]a^{2}[/tex]

Hence,

[tex]225 = a^{2}+a^{2}+a^{2}\\\\225 = 3a^{2}\\\\a^{2} = 75\\\\a = 8.6602[/tex]

The side of rectangle = 8.6602 inch

Now, The value of s to the nearest tenth is 8.66 inch.

Therefore, The value of s (side) of rectangle is 8.66 inch.

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The ratio of the amount of money Mrs. O pays for swordfish to the amount she pays for salmon is 9:4, after calculating the price per pound based on the given information and the total paid.

The question involves finding the ratio of the amount of money Mrs. O pays for swordfish to the amount she pays for salmon. However, there seems to be a typo as the question asks for the ratio of the amount paid for swordfish to the amount paid for the same swordfish. We will resolve this by providing the correct ratio of the money paid for swordfish to the money paid for salmon.

Let us denote the price per pound of salmon as Ps. Given that "One pound of swordfish costs as much as 1.5 pounds of salmon", the price per pound of swordfish can be represented as 1.5Ps. We know Mrs. O pays $39 for 2 pounds of salmon and 3 pounds of swordfish combined.

Using this information, we can calculate the price Mrs. O paid for salmon:
Ps * 2 pounds of salmon. Similarly, the price for swordfish is: 1.5Ps * 3 pounds of swordfish.

Now we need to solve for Ps using the equation: 2Ps + (1.5Ps * 3) = $39. This simplifies to 2Ps + 4.5Ps = $39, resulting in 6.5Ps = $39. Dividing both sides by 6.5 gives us Ps = $6. Hence, Mrs. O pays $6 per pound for salmon.

Therefore, Mrs. O pays 2 * $6 = $12 for salmon and 3 * (1.5 * $6) = 3 * $9 = $27 for swordfish. The ratio of the money paid for swordfish to the money paid for salmon is $27 to $12, which simplifies to 9:4.

Answer:

19.65 because you divide 78.6 by 4

Step-by-step explanation:

Because you divide 78.6 by 4  hope it helps someone even though its late