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padilas [110]
3 years ago
7

PLEASE ANSWER I WILL MARK YOU BRAINLIEST!!!

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

9514 1404 393

Answer:

  1. distribute
  2. subtract
  3. add
  4. divide by

Step-by-step explanation:

  \begin{array}{rccl}&-2(5x+8)=14+6x\\\text{Step 1:}&-10x-16=14+6x&\text{distribute}&\text{-2 to $5x$ and 8.}\\\text{Step 2:}&-16x-16=14&\text{subtract}&6x\\\text{Step 3:}&-16x=30&\text{add}&16\\\text{Step 4:}&x=\dfrac{30}{-16}&\text{divide by}&-16\end{array}

At each step after the first, we use one of the properties of equality to simplify the equation. In the first step, we use the distributive property to eliminate parentheses.

_____

<em>Additional comment</em>

Note that the first step could have been "divide by -2", which would result in the equation 5x+8 = -7 -3x. Subsequent steps would add 3x, subtract 8, and divide by 8, to give a result of x=-15/8. There is usually more than one way to work a math problem.

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Fiona can make 8 cards in 1/2 hour. She divides to find the number of cards she can make per hour, but she makes a mistake. Thre
OlgaM077 [116]

Answer:

16 cards in 1 hour

Step-by-step explanation:

8 cards, 1/2 hour

16 cards in 1 hour

Make a proportion.

8/30min= x/60min

Solve the proportion by cross- multiplying.

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6 0
3 years ago
The perimeter of an equilateral triangle is 9 inches more than the perimeter of a square, and the side of the triangle is 6 inch
zimovet [89]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The answer to this !!!
ipn [44]

Answer: A=12, B=2, C=11

Step-by-step explanation:

With the given problem, you would first expand the numerator.

\frac{x^1^5y^3z^1^2}{x^3yz}. Then you can simply from there. You can subtract the exponents. x^1^2y^2x^1^1

6 0
3 years ago
What is the solution to the equation 0.8m − 4 = −0.8m?
lidiya [134]

Answer:

m = 2.5

Step-by-step explanation:

Add 0.8 m to both sides, obtaining 0.8m + 0.8m - 4, or 1.6m - 4 = 0.

Now add 4 to both sides.  Result:  1.6m = 4, and m = 4/1.6 = 2.5 = m

8 0
3 years ago
What is the slope of a line that is perpendicular to the line represented by the equation y-5x=5?
zalisa [80]
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6 0
3 years ago
Read 2 more answers
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