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alexira [117]
3 years ago
8

Mr. pham wrote the equation below on the board.

Mathematics
2 answers:
valkas [14]3 years ago
7 0

18 - 7x = -20.5

Subtract 18 from each side:

-7x = -38.5

Divide both sides by -7:

x = -38.5 / -7

x = -5.5 = 5 1/2

The answer is D.

melisa1 [442]3 years ago
7 0

Answer:

D. 5 1/2

Step-by-step explanation:

18-7x=-20.5

Subtract 18 from each side

18-18-7x=-20.5-18

-7x = -38.5

Divide each side by -7

-7x = -38.5/-7

x =5.5

In fraction form

x = 5 1/2

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2 years ago
A decorative floor pattern has 1 red square tile surrounded by 12 blue tiles. Wrote and evaluate an expression to show how many
ehidna [41]

This question is worded badly, so don't be alarmed.

Obviously if this were a square patter the number of red tiles could only be 1,4,9,16,25,36 etc and this is not the numbers given...It would help tremendously if they gave you another reference point so as to know how the tiles were being laid out.

If they are laid out alongside one another with a consistent border for each you wouldn't need 12 blue tiles for each red tile either...if two were laid side by side you would only need 20 blue tiles to have the border around both...you see how the arrangement makes a huge difference and you are given no details as to what that arrangement is...

So just to keep it simple, assume that each red tile is surrounded by 12 blue tiles....

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3 0
3 years ago
The ratio of pounds of vegetables to pounds of protein on the dinner plate is 5 to 2. IF
leva [86]

Answer:

10 lbs

Step-by-step explanation:

25 is to 5    as   x is to 2

25/5 = x/2

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8 0
2 years ago
A farm produces an average of 17.1 liters of milk per day. About how many days will it take to produce 200 liters of milk? A. ab
Aleks04 [339]
Average produce milk per day 17.1 liters
to produce 200 liters should be:

17.1x = 200
x = 200/17.1
x = 11,69

it close to 12. the answer is a. about 12 days

hope this help
6 0
3 years ago
Read 2 more answers
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