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Lady bird [3.3K]
3 years ago
15

Please help with these questions!!! Having trouble solving them

Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0
1. distribute
2(w-3x)
2w-6x

2. 2w-6x/1=4y/z
4y=(2w-6x)z

I know the way that I do the step above isn’t how everyone does it, but it is what works for me. I cross multiplied.

z=4y/2w-6x

I hope this helps!
elena55 [62]3 years ago
6 0

Answer: 2y/w-3x

That should be correct

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gogolik [260]

Answer:

0.021 < 0.099 < 0.845

Step-by-step explanation:

Given numbers:

  • 0.021, 0.845, and 99/1,000 = 0.099
  • 0.021, 0.845, 0.099

In ascending order:

  • 0.021 < 0.099 < 0.845
8 0
3 years ago
Read 2 more answers
8k^4 -3k^2 multiplied by 5k^2
S_A_V [24]

Answer: 40k⁶-15k⁴

Step-by-step explanation:

(8k^4-3k^2)(5k^2)=\\\\8k^4(5k^2)-3k^2(5k^2)=\\\\8(5)(k^{4+2})-3(5)(k^{2+2})=\\\\40k^6-15k^4

6 0
1 year ago
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A rectangle has a length that is one foot less than twice its width. it the area of the rectangle is 91 square feet then which o
Tju [1.3M]

Answer:

Step-by-step explanation:

Well.. First of all, the question says that we are working with a rectangle..

So, the rectangle has a length and width. I'll call them L and w.

Look at this phrase: " length that is one foot less than twice its width"

it means, in a algebraic language: L = 2w - 1

Let's analysis the next phrase: "it the area of the rectangle is 91 square feet"

So, A = 91 ft²

But you have to remember that the rectangle area is a product of L and w.

L x w = 91

They are the following equations that you could be used to solve the system of equations.

Now, you have a system of equations and I suggest you to solve it using the substituition method.

L = 2w - 1

L x w = 91

7 0
3 years ago
PLEASE HELP Christine walks 0.5 miles around the lake in 10 minutes.
grin007 [14]

Answer:

Her speed is 0.05 miles per minute

Step-by-step explanation:

The unit rate of her speed in miles per minute is given by the number of miles divided by the number of minutes. So:

0.5 miles in 10 minutes. So

0.5/10 = 0.05 miles per minute

Her speed is 0.05 miles per minute

4 0
3 years ago
A group 6 students was asked, how many hours did you watch television last wee? Here are their responses. 20, 5, 7, 17, 16, 15,
Sindrei [870]

Answer:

13.3

Step-by-step explanation:

There is an equation that helps

mean= (All of the numbers in the data added) divided by (the number of numbers in the data)

What that mean is:

1.) Add 20, 5, 7, 17, 16, and 15

2.) divided by 6 (because there is 6 numbers in the data)

3.) round it to the nearest number (numbers from the one's place being 4-0 means go back or 5-9 means go forward a number)

which in this case it should be 13.33333...=13.3

4 0
3 years ago
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