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4 years ago

Review Word Problems ?

Mathematics

1 answer:

melomori [17]4 years ago

4 0

1.) 2=50%

2.) 25% of 30,000= 7500

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I need to fill in the blanks for this equation and I cant figure it out

Alex17521 [72]

Answer:

1. +12x and 15

2. 14x

3. 2

Step-by-step explanation:

Step 1: Distribute -3

To distribute -3, you would multiply both -4x and -5 by -3, changing them to 12x and 15

Step 2: Combine 12x and 2x

Then you would combine like terms, meaning that you would add 12x and 2x, creating 14x.

Step 3: Combine 15 and -13

You would finish combining like terms by adding 15 to -13, creating 2

8 0

3 years ago

What is the solution to the system of equations below?

Andre45 [30]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equations

$y=-6x-10$

$y=-3x-21$

solving the system of the equations

Arrange the equation variables for elimination

$\begin{bmatrix}y+6x=-10\\ y+3x=-21\end{bmatrix}$

$y+3x=-21$

$-$

$\underline{y+6x=-10}$

$-3x=-11$

$\begin{bmatrix}y+6x=-10\\ -3x=-11\end{bmatrix}$

solve

$-3x=-11$

Divide both sides by -3

$\frac{-3x}{-3}=\frac{-11}{-3}$

$x=\frac{11}{3}$

$\mathrm{For\:}y+6x=-10\mathrm{\:plug\:in\:}x=\frac{11}{3}$

$y+6\cdot \frac{11}{3}=-10$

$y=-32$

Therefore, the solutions to the system of the equations are:

$y=-32,\:x=\frac{11}{3}$

But, it seems none of the options is true.

8 0

3 years ago

Read 2 more answers

A giant red oak's diameter was 248 inches in 1965. The tree's diameter had grown to 251 inches in 2005. Find the average rate of

Anna71 [15]

Sorry for the late response

(bigger number - smaller number) divided by original number

(251 - 248) / 248
3 / 248 Divide to make this a decimal
0.0120967741... round it
0.012 change into percent
The rate of change is 1.2%

hope this helps!

4 0

4 years ago

Which line is parallel to a line whose slope is 2/5

Vera_Pavlovna [14]

3,-4
1,-8
Possible parrellell lines of the slope

4 0

4 years ago

Ahmed wants to buy a new carpet for his house. The cost of the carpet is $240. One day the carpet shop has a special offer of a

olchik [2.2K]

Answer:

Money of carpet after discount = $180

Step-by-step explanation:

25% of $240 = $\frac{25*240}{100}$

25% of $240 = $60

Money of carpet after discount = $240 - $60

Money of carpet after discount = $180

7 0

3 years ago