Solve for x:
2.9−x=0.29

use the substitution method

y=3x-5

y= 1/2x+5

3x-5= 1/2x+5

move -5 to the other side

sign changes from -5 to +5

3x-5+5= 1/2x+5+5

3x= 1/2x+10

move 1/2x to the other

3x-1/2x= 1/2x-1/12x+10

3x-1/2x= 10

find the common denominator for 3x

pretend that there is a 1 for 3x. 3x/1. The common denominator is 2. Mutiply the fraction by 2

3x(2)/1(2)

= 6x/2

6x/2-1/2x= 10

5/2x= 10

mutiply both sides by 2/5

5/2x(2/5)= 10(2/5)

Cross out 5 and 10, divide by 5 . Then becomes 2*2= 4

x= 4

find y by using the substitution method

y=3x-5

y= 3(4)-5

y= 12-5

y= 7

Answer: (4,7)

To find the ordered pair (x, y) that satisfies the given equations y=3x-5 and y=1/2x+5, we can solve the system of equations simultaneously. The ordered pair is (4, 7).

To find the ordered pair (x, y) that satisfies the given equations y=3x-5 and y=1/2x+5, we need to solve the system of equations simultaneously. By setting the two expressions for y equal to each other, we can find the x-coordinate. Substituting this value back into either equation will give us the y-coordinate.

Let's set 3x-5 equal to 1/2x+5:

3x-5 = 1/2x+5

Multiplying through by 2 to eliminate the fraction:

6x-10=x+10

Combining like terms:

5x=20

Dividing both sides by 5:

x=4

Substituting this value of x into y=3x-5:

y=3(4)-5

y=12-5

y=7

Therefore, the ordered pair (x, y) is (4, 7).

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Answer:3^2

Step-by-step explanation:

Find prime numbers that go into nine.

3 goes into to 9 3 times. 3 is a prime number so the prime factorization for nine is

3*3=3^2

The Prime factorization of 9 is expressed as: 3 * 3 or 3²

A prime factor is defined as a natural number, other than 1, whose only factors are 1 and itself. The first few prime numbers are actually 2, 3, 5, 7, 11, and so on.

Now we can also use what's called prime factorization for numbers which actually consist of using factor trees.

Now, some of the factors of 9 are 1, 3, 9. Thus:

Prime factorization of 9 = 3 * 3 = 3²

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The translation rule is T

The answer is 101/1000

Happy to help

Answer:

6

Step-by-step explanation:

i know for sure

if you want to know... well then ok

draw a diagram and put 12 and 30 on the outsides of each box than factor 12 and 30 put the numbers that they both have on each side in the middle circle and the rest on the big circles. Then multiply the numbers in the middle you get dun.. dun... dun...

6

In the number 21,354, the digit 2 has the greatest value.

The digit furthest to the left in a number is the greatest or highest place value. Any number other than zero could be it.

Notice that the digit furthest to the left in the number 21,354 is 2. So, 2 has the greatest or highest place value.

Hence, In the number 21,354, the digit 2 has the greatest value.

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Answer:

2:5

Step-by-step explanation:

8:20 divided by 4 on bothe sides would equal 2:5

Equivalent ratios to 8:20 can be found by simplifying this ratio to its lowest terms, which is 2:5, and then scaling these numbers up or down by the same factor. Examples of equivalent ratios to 8:20 include 2:5, 4:10, 6:15, 8:20, and 10:25.

The question is asking for ratios equivalent to the ratio 8:20. To find equivalent ratios, we need to either multiply or divide both numbers in the ratio by the same amount. Ratios are a method of comparing quantities and numbers.

Let's start by simplifying the ratio 8:20 to its simplest form. To do this, we find the greatest common divisor of 8 and 20 which is 4. Then, divide both numbers by 4. This simplifies the ratio to 2:5.

Now that we have the simplified form of the ratio, we can find equivalent ratios by simply multiplying or dividing these numbers by any other number. For instance, multiplying by 2, we get the ratio 4:10. This is an equivalent ratio to 8:20 because the relationship between the numbers remains the same.

Here are some other equivalent ratios to 8:20: 6:15, because 2 x 3 = 6 and 5 x 3 = 15; 8:20, because 2 x 4 = 8 and 5 x 4 = 20; and 10:25, because 2 x 5 = 10 and 5 x 5 = 25.

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Answer:

1 2/7 cups of sugar

Step-by-step explanation:

You can use a proportion.

To make it easier to write the proportion, we rewrite the numbers as decimals.

3 1/2 = 3.5

3/4 = 0.75

Let x be the unknown amount of sugar.

3.5 cups of flour is to 0.75 cup of sugar as 6 cups of flour is to x cups of sugar.

3.5/0.75 = 6/x

Cross multiply.

3.5x = 0.75 * 6

3.5x = 4.5

x = 4.5/3.5 = 45/35 = 9/7 = 1 2/7

Answer:

9,750 and 0.0000084

Step-by-step explanation:

9.75 × 10^3= 9,750 (move decimal 3 places to the right because exponent is positive)

8.4 × 10^-6 = 0.0000084 (move decimal 6 places to the left because exponent is negative)

Answer:

Step-by-step explanation:

[tex]-2x-147=123+7x\qquad\text{add 147 to both sides}\\\\-2x-147+147=123+147+7x\\\\-2x=270+7x\qquad\text{subtract }\ 7x\ \text{from both sides}\\\\-2x-7x=270+7x-7x\\\\-9x=270\qquad\text{divide both sides by (-9)}\\\\\dfrac{-9x}{-9}=\dfrac{270}{-9}\\\\x=-30[/tex]

Answer:

When we are moving things of 5 tons when the amount $0.70 per one pound, from New York to Florida the total cost it will be $7000

Solution:  

From question given data are

The amount charge per one pound when we transferring from New York to Florida = $0.70

The total amount for 5 tons when we transferring from New York to Florida  is to be found out.

We know that 1 ton = 2000 pounds.

In order to find the total amount per one ton = [tex]2000 \times 0.70[/tex]

[tex]=2000 \times \frac{70}{100}[/tex]  = 1400

The total amount per one ton = $ 1400

In the given problem the total amount per 5 ton = [tex]5 \times 1400[/tex]  = $ 7000

Hence, when we are moving things of 5 tons when the amount $0.70 per one pound, from New York to Florida the total cost it will be $7000

Answer:

The total cost to move the belongings from New York to Florida is [tex]7000\[/tex]

Solution:

Given that,

Cost per pound to move from New York to Florida is [tex]0.70\[/tex]

Total weight of the belongings is 5 tons

To find: The total cost

The value of 1 ton in pounds is 2000

[tex]\therefore 5 tons = 2000\times 5 = 10,000 pounds[/tex]

So, the total cost to move the belongings from New York to Florida is [tex]total weight \times cost per pound[/tex].

Total cost = [tex]0.70\ \times 10000 = \frac{700000}{100} = 7000\[/tex]

Answer: The GCF of 12 and 360 is 12

8

Because 16 ounces is a pound half of 16 is 8, 8 ounces is half a pound. :)

Answer: 218

Step-by-step explanation:

Answer:

x = variable

3 = coefficient

1 = constant

3x^2-4x+1 = algebraic expression

2 = degree

Step-by-step explanation:

variables are typically the letters in equations (usually x and y)

coefficients are the numbers attached to the variables

constants don't have any variables attached

algebraic expressions are the full expression

degrees are the small numbers in the top right corners on either constants, variables or coefficients

Hope this helps!

Each item matched with its description and meaning is

From the question, we have the following parameters that can be used in our computation:

3x² - 4x + 1

The above algebraic expression is a quadratic expression

This means that the degree of the equation is 2

Also, we have the expression to use the variable x

So, we have

variable = x

The constant term is the term without the variable x

So, we have

constant = 1

And the coefficient is 3

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Answer:

The simplified form of \((2+1)\cdot 3\div 3^{2}\).

Answer:

13

Step-by-step explanation:

If Chad had 7 sandwiches and that was 6 fewer than the amount Sarah has then Sarah made 6 sandwiches. The working is as follows :

Chad = 7 sandwiches (6 fewer than Sarah)

Sarah = ?

Sarah = 7 + 6 = 13 sandwiches.

In order for Chad to have eaten that many sandwiches, Sarah would have had to have made 13 sandwiches.

Sarah made x number of sandwiches and Chad ate 7 out of it.

The 7 that Chad ate remained 6 sandwiches out of the total that Sarah made.

The number of sandwiches Sarah made is therefore:

= Number that Chad ate + Number that was left

= 7 + 6

= 13 sandwiches

In conclusion, Sarah made 13 sandwiches

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Answer:  The length of last piece is 30 inches.

Step-by-step explanation:

Since we have given that

Length of one leg = 18 inches

Length of other leg = 2 feet = 24 inches

As it is in the right triangle.

[tex]H^2=P^2+B^2\\\\H^2=18^2+24^2\\\\H^2=900\\\\H=\sqrt{900}\\\\H=30[/tex]

Hence, the length of last piece is 30 inches.

Answer: 16 girls.

Step-by-step explanation: 16 girls means that there are 8 boys. 8+16=24.

Answer:

There are going to be 16 girls on the tennis team

Answer:

It costs $0.14 to drive your car for one mile.

Hope this helps :)

To calculate the cost of driving per mile, the price of gasoline ($4.2) should be divided by the car's fuel efficiency (30 mpg). This results in a cost of $0.14 per mile.

To find out how much it costs to drive per mile, we need to divide the cost of one gallon of gas by the number of miles that can be driven with that gallon. In this case, the cost of gasoline is $4.20 per gallon and the mileage of the car is 30 miles per gallon.

So, in this scenario, it costs approximately $0.14 to drive your car for one mile on the highway.

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To solve -5/6 + (-1/12), convert both to have a common denominator of 12, resulting in -10/12 + (-1/12). Add the numerators to get -11/12. The sum of two negative fractions maintains a negative sign.

To find the answer to the problem -5/6 + (-1/12), we need to add the two fractions. When adding fractions with different denominators, we first find a common denominator. In this case, the common denominator for 6 and 12 is 12. We then convert each fraction to an equivalent fraction with this common denominator.

For the first fraction -5/6, we multiply both the numerator and the denominator by 2 to get -10/12. The second fraction is already with a denominator of 12, so we keep it as -1/12. Now, we add the numerators while keeping the denominator the same:

-10/12 + -1/12 = -11/12. The sum of the two fractions is -11/12, which is already in simplest form.

This example demonstrates that when two negative numbers add, the answer has a −ve sign, and the numerators are simply added together while the denominator remains the same.

Answer:

- 7

Step-by-step explanation:

To calculate f(g(- 3)), evaluate g(- 3) then evaluate f(x) for this value

g(- 3) = - 3 - 1 = - 4, then

f(- 4) = 3(- 4) + 5 = - 12 + 5 = - 7

Answer:

x=4

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

2x-3+4x=21

2x+4x=21+3

6x=24

x=4

Answer:

1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408

Step-by-step explanation:

plz rate Brainliest

Answer:

1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408

Step-by-step explanation:

Answer:

1) The question is aimed to determine the number that Laura is trying to come up with.

Such question is solved by stating an algebraic equation from the word statement, which is done step by step.

2) Using the name x for the unknown, the expression "three less than 8 times the number" is translated to: 8x - 3

3) The expression "half of 16 times the number after it was increased by 1" is translated to: (1/2) (16x + 1)

4) Finally, since they are equal, you can set the equation:

8x - 3 =  (1/2) (16x + 1)

5) And solve for x in this way:

i) Distributive property:

8x - 3 = 8x + 1/2

ii) At this stage you can see that the both 8x terms (on the left and on the right) cancel each other, which leads to the impossibility to determine the value of the unknown:

-3 = 1/2 which is alwasy false, meaning that the equation has no solution.

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Step-by-step explanation:

hope it help

Laura can’t find a number that works because the equation is inconsistent and has no solution.

In order to solve this word problem, we would assign a variable to the unknown number, and then translate the word problem into an algebraic equation as follows:

Let the variable n represent the unknown number.

Based on the statement "Three less than eight times the number is equal to half of 16 times the number after it was increased by one," we can logically deduce the following algebraic equation;

8n - 3 = 1/2 × (16n + 1)

16n - 6 = 16n + 1

16n - 16n = 1 + 6

0 = 7 (False).

Therefore, this equation has no solution because the coefficients are the same on both sides.

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Complete Question;

Laura is now trying to come up with a number where three less than eight times the number is equal to half of 16 times the number after it was increased by one. She can’t seem to find a number that works explain why

Answer:

5"

Step-by-step explanation:

You are copying a square of side 20 inches into a smaller version of it that is exactly 25% of the original size.

Notice that 25% can be written in fraction form as: [tex]\frac{25}{100} = \frac{1}{4}[/tex]

This gives us a clue about how to reduce the original dimension: "multiply it by [tex]\frac{1}{4}[/tex], which is the same as divide it by 4:

[tex]20" * \frac{1}{4} = \frac{20"}{4} = 5"[/tex]

Answer:

Section 1: 5.59%

Section 2: -2.16%

Section 3: -10.82%

Section 4: -6.54%

Section 5: -2.16%

Section 6: 7.86%

Explanation:

The formula to calculate the percent change in mass is given as:

[tex]PercentChange = \frac{ChangeInMass}{StartingMass}*100=\frac{NewMass - OldMass}{OldMass}*100[/tex]

1- Section 1:

Old mass = 7.83 g and New mass = 8.268 g

[tex]PercentChange = \frac{8.268-7.83}{7.83}*100 =[/tex]5.59%

2- Section 2:

Old mass = 7.4 g and New mass = 7.24 g

[tex]PercentChange = \frac{7.24-7.4}{7.4}*100 =[/tex]-2.16%

3- Section 3:

Old mass = 7.3 g and New mass = 6.51 g

[tex]PercentChange = \frac{6.51-7.3}{7.3}*100 =[/tex]-10.82%

4- Section 4:

Old mass = 7.49 g and New mass = 7.0 g

[tex]PercentChange = \frac{7.0-7.49}{7.49}*100 =[/tex]-6.54%

5- Section 5:

Old mass = 7.4 g and New mass = 7.24 g

[tex]PercentChange = \frac{7.24-7.4}{7.7.4}*100 =[/tex]-2.16%

6- Section 6:

Old mass = 7.89 g and New mass = 8.51 g

[tex]PercentChange = \frac{8.51-7.89}{7.89}*100 =[/tex]7.86%

Hope this helps :)

(y - yo) = m.(x - xo)

Let's go

(-1/n - (-1/m)) = s.(1 - n/m)

(-1/n + 1/m) = s.(1 - n/m)

(-m+n)/mn = s.(m - n)/m

If we multiply both sides by m

(-m + n)/n = s.(m - n)

If we take the (-1) from the left side we have

(-1.(m - n))/n = s.(m - n)

And if we divide both sides by (m - n)

-1/n = s

So our slope is -1/n

Answer:

  - The diagram bar is attached.

  - Addition equation:  [tex]7+7+7=21[/tex]

  - Multiplication equation: [tex](3)(7)=21[/tex]

  -  How are the equation related? Each equation shows 3 groups of 7.

Step-by-step explanation:

We know that Jan buys 3 bags of beads and each bag contains 7 beads, then, you can draw the bar diagram shown attached.

 Observe that the diagram has 3 blocks (each block represents a bag of bead) and there is a number 7 inside of each block (which is the number of beads contained in a bag).

Therefore:

- Add the numbers inside the blocks in order to get the addition equation that shows the number of  beads Jan buys. This is:

[tex]7+7+7=21[/tex]

- Multiply 3 blocks by 7 in order to get multiplication equation that show the number of beads Jan buys:

[tex](3)(7)=21[/tex]

The equations are related. Each one shows 3 groups of 7.