Guest #2973

2 months ago

The first step for solving this expression is to reduce the fraction with 2.

3 ×

Now multiply 3 by the numerator (top of the fraction) to find your final answer.

This means that the correct answer to your question is going to be ,, or 0.75 in decimal form.

Let me know if you have any further questions.

:)

3 ×

Now multiply 3 by the numerator (top of the fraction) to find your final answer.

This means that the correct answer to your question is going to be ,, or 0.75 in decimal form.

Let me know if you have any further questions.

:)

Guest #2974

2 months ago

So...

or

simplified

Hope I helped!

or

simplified

Hope I helped!

Question

3(x - 9) = -39
solve and check solution

Solution 1

The answer is x= -4

3(x-9)= -39

divide both sides by 3

x-9= -13

add 9 to both sides

x= -4

3(-4-9)= -39

-12-27= -39

3(x-9)= -39

divide both sides by 3

x-9= -13

add 9 to both sides

x= -4

3(-4-9)= -39

-12-27= -39

Solution 2

3(x-9)=-39

3x-27=-39

+27 +27

3x=-12

/3 /3

**x=-4**

3x-27=-39

+27 +27

3x=-12

/3 /3

Question

A crane is rented at $1000 per day plus a charge per hour of use. The crane was used for 7 hours on a day, and the total charge was $3450. Which equation can be used to find the charge x, in dollars, per hour of use?

Solution 1

The equation can be (3450-1000)÷7=350.

Question

A plumber charges $100 to come to a house and $95 dollars per hour that he is there. If the total cost of the plumber’s visit to a house was $385, how many hours was the plumber working at the house?

Solution 1

3 hours.

First, you have to subtract 100 from 385 to find the total cost of hours at the house. Then, since he charges $95 every hour, you have to divide 385/95 and you get 3 as your answer. Hope this helped :) .

First, you have to subtract 100 from 385 to find the total cost of hours at the house. Then, since he charges $95 every hour, you have to divide 385/95 and you get 3 as your answer. Hope this helped :) .

Question

What is the square root of 15241578750190521

Solution 1

If you multiply the number 123456789 to itself you will get 15241578750190521

So, the answer to the question is 123456789

So, the answer to the question is 123456789

Question

What is the sum of the polynomials (-x^2+9)+(-3x^2-11x+4).
• -4x^2-2x+4
• -4x^2-11x+13
• 2x^2+20x+4
• 2x^2+11x+5

Solution 1

I think the answer is -4x^-11x+13

Solution 2

The first step for solving this expression is to remove the first set of parenthesis.

-x² + 9 + (-3x² - 11x + 4)

Now,, remember that when there is a**"+"**sign in front of the parenthesis,, then the parenthesis in the expression remains the same. This means that all you need to do for the second side of the expression is remove the parenthesis.

-x² + 9 + -3x² - 11x + 4

Collect the like terms that have an exponent of two.

-4x² + 9 - 11x + 4

Add the regular numbers together.

-4x² + 13 - 11x

Lastly,, use the commutative property to reorder the terms and get your final answer.

-4x² - 11x + 13

Since we cannot simplify this expression down any further,, our final answer is going to be -4x² - 11x + 13 or option B.

Let me know if you have any further questions.

:)

-x² + 9 + (-3x² - 11x + 4)

Now,, remember that when there is a

-x² + 9 + -3x² - 11x + 4

Collect the like terms that have an exponent of two.

-4x² + 9 - 11x + 4

Add the regular numbers together.

-4x² + 13 - 11x

Lastly,, use the commutative property to reorder the terms and get your final answer.

-4x² - 11x + 13

Since we cannot simplify this expression down any further,, our final answer is going to be -4x² - 11x + 13 or option B.

Let me know if you have any further questions.

:)

Question

Which associations best describe the data in the table? Variable m 9 6 5 1 3 4 2 8 7
Variable n 33 24 18 3 10 14 7 32 26
Choose exactly two answers that are correct.
A.
linear association
B.
negative association
C.
nonlinear association
D.
positive association

Solution 1

In order to find out the association, you need to plot the data. Given that m is x, and n is y, after plotting, the graph shows a positive linear association. The graph rises from left to right. So the answer is letter D.

Question

the expression 5n+2 can be used to find total cost in dollars of bowling where n is the number of games bowled 2 represents the cost of shoe rental. How much will it cost vincent to bowl 3 games?

Solution 1

So justsubsitue 3 for n

5(3)+2

15+2

17

answer is 17

5(3)+2

15+2

17

answer is 17

Solution 2

So you sub n=3 into the equation and get 5(3)+2 as the result, so then you work it out and end up with $17.

For Vincent to bowl three games, including shoe hire, it will cost him $17.

(the last sentence will make it sound like you really know what youre talking about)

For Vincent to bowl three games, including shoe hire, it will cost him $17.

(the last sentence will make it sound like you really know what youre talking about)

Question

Suppose a triangle has sides 3, 4, and 5. Which of the following must be true? A. The triangle in question is a right triangle. B. The triangle in question is not a right triangle. C. The triangle in question may or may not be a right triangle.

Solution 1

Answer : the triangle in question is a right triangle.

~~

Why??

The pythagorean theorem is,

Plug in the numbers,

↑

This is true

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

~~

Why??

The pythagorean theorem is,

Plug in the numbers,

↑

This is true

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

Solution 2

A. The triangle in question is a right triangle.

For this triangle you can apply Pythagorean theorem.

3²+4²=5²

9+16=25

25=25

For this triangle you can apply Pythagorean theorem.

3²+4²=5²

9+16=25

25=25

Question

-8r - 2 + 7r= -9
solve the equation. then check the solution

Solution 1

The first step for solving this equation is to collect the like terms with an r variable.

-r - 2 = -9

Now move the constant to the right side of the equation and then change its sign.

-r = -9 + 2

Calculate the sum on the right side of the equals sign.

-r = -7

Then lastly,, change the signs on both sides of the equation to find your final answer.

r = 7

This means that the correct answer to your question is going to be r = 7.

We can check this by putting 7 where r is in the equation. This means that in order to check this,, our equation will change to the following:

-8(7) - 2 + 7(7) = -9

We will first start checking this by multiplying the first two numbers together.

-56 - 2 + 7(7) = -9

Now multiply the 7 by the number in the parenthesis.

-56 - 2 + 49 = -9

Now use addition and subtraction rules to calculate the expression on the left side of the equals sign.

-9 = -9

This tells us that the equality us true because both sides of the equation are identical.

Let me know if you have any further questions.

:)

-r - 2 = -9

Now move the constant to the right side of the equation and then change its sign.

-r = -9 + 2

Calculate the sum on the right side of the equals sign.

-r = -7

Then lastly,, change the signs on both sides of the equation to find your final answer.

r = 7

This means that the correct answer to your question is going to be r = 7.

We can check this by putting 7 where r is in the equation. This means that in order to check this,, our equation will change to the following:

-8(7) - 2 + 7(7) = -9

We will first start checking this by multiplying the first two numbers together.

-56 - 2 + 7(7) = -9

Now multiply the 7 by the number in the parenthesis.

-56 - 2 + 49 = -9

Now use addition and subtraction rules to calculate the expression on the left side of the equals sign.

-9 = -9

This tells us that the equality us true because both sides of the equation are identical.

Let me know if you have any further questions.

:)

Question

150 percent of what number is 18

Solution 1

150%

percent measns parts out of 100

150%=150/100=1.5

'of' means multiply

150% of what is 18

1.5 times what=18

divide both sides by 1.5

what=12

the number is 12

percent measns parts out of 100

150%=150/100=1.5

'of' means multiply

150% of what is 18

1.5 times what=18

divide both sides by 1.5

what=12

the number is 12

Solution 2

150% of 12 would be 18. because if you have 12 you are left with 6, this is 50%. now if you add the 12(100%) with the 6 (50%) you get 18(150%)

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