find the value of x 7x° (x+20)°

Answer:

0.2 > 0.15 > 0.1

Step-by-step explanation:

Answer:

$4.5.

Step-by-step explanation:

We have been given that at the market 8 apples cost $4.

Let us find the cost of 1 apple by dividing total cost of apples by total number of apples.

[tex]\text{Cost of 1 apple}=\frac{\$4}{8}[/tex]

[tex]\text{Cost of 1 apple}=\$0.5[/tex]

To find the cost of 9 apples we will multiply cost of 1 apple by 9.

[tex]\text{Cost of 9 apples}=\$0.5\times 9[/tex]

[tex]\text{Cost of 9 apples}=\$4.5[/tex]

Therefore, the cost of 9 apples will be $4.5.

According to the question,

Cost of 1 apple will be:

= [tex]\frac{4}{8}[/tex]

= [tex]0.5[/tex] ($)

hence,

The cost of 9 apples will be:

= [tex]0.5\times 9[/tex]

= [tex]4.5[/tex] ($)

Thus the above answer is correct.

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We can determine that Jacob's weight is any number greater than 100 pounds, and Aiden weighs 39 pounds less than Jacob. Without an exact weight for Jacob, we cannot provide precise weights, only a possible range for both brothers.

To solve the question regarding Aiden and Jacob's weight, we can set up a simple algebraic equation. If Aiden weighs 39 pounds less than Jacob, and Jacob weighs more than 100 pounds, we can use variables to represent their weights.

Let's let J represent Jacob's weight. Therefore, Aiden's weight is J - 39 pounds. We're told that Jacob weighs more than 100 pounds, so J > 100.

For example, if Jacob weighed 110 pounds (which is more than 100 pounds), then Aiden would weigh 110 - 39 = 71 pounds. However, since we don't have an exact weight for Jacob, we cannot determine the exact weights but we can provide a range. Jacob's weight is any number greater than 100 and Aiden's weight is always 39 pounds less than Jacob's weight.

Answer:

a - b is also a rational number.

Step-by-step explanation:

 Given : a and b be rational numbers.

We have to check whether  a - b rational or irrational.

Since, Given  a and b be rational numbers.

Let us consider any two rational numbers,

[tex]a=\frac{2}{3}[/tex] and [tex]b=\frac{1}{3}[/tex]

we determine a - b as,

[tex]a-b=\frac{2}{3}-\frac{1}{3}[/tex]

Simplify, we have,

[tex]a-b=\frac{2-1}{3}=\frac{1}{3}[/tex]

Which is a rational number.

Thus, a - b is also a rational number.

Answer:- Atlanta is the reference point in this scenario.

Explanation:-

A reference point is a stationary place in a scenario which is used for comparison to determine if something is in motion. An object is in motion if it changes position respective to a reference point.

From the given situation, the reference point is Atlanta because Atlanta is the starting point such that the distance and time are computed from that point.

Answer: Altanta

Step-by-step explanation:

  Multiplication of the given numbers will be zero.  

      Given expression in the question,

As we know that multiplication of any number by zero results 0.

  Therefore, expression given in the question will result 0.

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3 outside angles = 360

n = 360 - 133-142

n = 85

The question is about ratios. Based on the condition, Elijah invited twice as many boys as girls which makes up a total of 18 people. We find out that Elijah invited 6 girls and 12 boys.

This is a mathematical problem dealing with ratios. From the question, we know that Elijah plans to invite twice as many boys as girls, and the total number of guests will be 18 people.

Assume the number of girls Elijah is inviting is x. Therefore, the boys will be 2x (twice the number of girls).

Now, we form an equation which is the total number of people: x (girls) + 2x (boys) = 18. Solving for x, we get x = 6. So Elijah is inviting 6 girls and 2*6 = 12 boys.

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The simplified expression for the cost of a concert ticket with a 3% sales tax is t(1.03). For an original ticket price of $72, the total cost after adding the sales tax is $74.16.

The cost of a ticket t to a concert with a 3% sales tax can be simplified by first expressing the total cost as a single expression. Simplify the expression t + 0.03t by factoring out t, which gives us t(1 + 0.03) or t(1.03). This shows that the total cost is 103% of the original ticket price.

To find the total cost after the sales tax for a ticket initially priced at $72, simply multiply the original price by 1.03:

$72 × 1.03 = $74.16

Thus, the total cost of the concert ticket after applying the 3% sales tax is $74.16.

14 is 8% of the number 175, and 16% of 175 is equal to 28.

To find a number that 14 is 8% of, we can set up the equation:

14 = 0.08 × x

Dividing both sides by 0.08:

14 / 0.08 = x

x = 175

Therefore, 14 is 8% of 175.

To find 16% of 175, we can multiply 175 by 0.16:

16% of 175

= 0.16 × 175

= 28.

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Answer:

[tex]-14jk[/tex]

Step-by-step explanation:

We are asked to find the quotient of our given expression [tex]42j^4k^2\div -3j^3k[/tex]

First of all, we will write our given problem as a fraction.

[tex]\frac{42j^4k^2}{-3j^3k}[/tex]

Using exponent property [tex]\frac{a^m}{a^n}=a^{m-n}[/tex], we will get:

[tex]\frac{42}{-3}(j^{4-3}k^{2-1})[/tex]

[tex]-14j^{1}k^{1}[/tex]

[tex]-14jk[/tex]

Therefore, the quotient of our given problem is [tex]-14jk[/tex].

To find the value of x, we use the quadratic formula on the equation x² + 0.00088x - 0.000484 = 0, resulting in two possible values for x, with the positive value being the valid solution in real-life contexts. In chemical equilibrium problems, the positive value is used to further calculate important quantities like pH.

To find the value of x, we use the quadratic formula. Given the equation x² + 0.00088x - 0.000484 = 0, we can calculate the values for x that satisfy the equation. After applying the quadratic formula, we find two possible values for x, which are x = -0.0024 or x = 0.00139. However, in a real-life context, such as a chemical equilibrium problem, a negative concentration does not make sense. Therefore, we can disregard the negative value and conclude that x actually equals 0.00139.

In problems where x represents a concentration, once we've determined x = 0.0021, we could use this to calculate the concentration of H3O+, which would allow us to find the pH of the solution by plugging this concentration into the pH equation.

When defining what x represents, such as in a statistical context where we might be interested in the number of students who do their homework on time, x would be defined differently. It is essential to understand the context of a problem to accurately determine what x signifies and how to solve for it.

he ran 8 * 1.5 = 12 miles

the bus went : 55 * 24/60 = 22 miles

12 +22 = 34 miles total

The mathematical expression for the quantity of men at the motorcycle rally, given that the count of men exceeds by 300 the quantity of women represented as 'x', is 'x + 300'. This indicates that by adding 300 to the value quantified as 'x' one can deduce how many men were present.

In this context, your objective is to write a mathematical expression for the number of men present at the motorcycle rally, given that this number exceeds women's by 300 and the number of women is denoted as 'x'.

The way to approach this is relatively straightforward. Since the number of men exceeds women's by 300, that means if you take the number of women (x) and add 300, you'll get the number of men. Hence, the expression you are looking for is x + 300 , where x is the number of women.

This means, for instance, if there were 200 women present, you'd have 200 (women) + 300 (the excess number of men) = 500 men. Therefore, no matter what number 'x' represents, you can always find the number of men by adding 300 to it.

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the answer really is 13.25 because you going to divide it

The average speed of Sarah is 13.25 km/hour.

We know that sped, distance, and time all are in a relationship to each other. this relationship can be given as,    

[tex]\rm{Speed = \dfrac{Distance}{Time}[/tex]

[tex]\rm{Speed\ of\ Sarah=\dfrac{Distance\ traveled\ by\ Sarah}{Time\ needed\ by\ Sarah}[/tex]

[tex]\rm{Speed\ of\ Sarah=\dfrac{53\ Km}{4\ hours}[/tex]

[tex]\rm{Speed\ of\ Sarah=13.25\ km/hour[/tex]

Hence, the average speed of Sarah is 13.25 km/hour.

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Answer:

The number nearest hundredth is 0.62.

Step-by-step explanation:

Given : Number 0.62.

To find : The number nearest hundredth ?

Solution :

The place value system of decimal number is

Ones       Tenth       Hundredth

  0              6                    2

The numbers is also written as 0.620.

If last digit is less than 5 number remain same.

If last digit is greater than 5 the number increase by 1.

As 0 <5 the number remain same.

Therefore, The number nearest hundredth is 0.62.

Answer:

1. the answer is -282 because it says that it is velow sea level

2. the answer is 20320 becase it say that it is above sea level

Answer:

Only 6x6. It equals 36. This is the only thing I found was incorrect. Practice Multiplication!

Step-by-step explanation:

6x5= 30

30+6 = 36