MATHEMATICS MIDDLE SCHOOL

-1/3d=12 can you help me find d?

Answers

Answer 1
Answer:


All you do is divide 1/3 to both sides

d then equals 36
Answer 2
Answer: -1/3d = 12
*3          *3

12 * 3 = 36

d = 36

Answer: d = 36

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Given the following equation: 8 Fe + S8 → 8 FeS
a) What mass of iron is needed to react with 16.0 moles of sulfur?

Answers

Answer:

7148.16 grams of iron

Step-by-step explanation:

If you have 16 moles of S8, you have 16*8 moles of iron at 55.845 g/mol Iron. 16*8mol*55.845 g/mol leads moles to cancel and leaves you at 7148.16 grams of iron

The median for 49,32,67,55,58

Answers

To find the median you need to order all the number. From the lowest to the highest and then find the middle number which is 55.
the median is the middle number when you order all the numbers. ordering the number gives the list:
32, 49, 55, 58, 67
we can see that the middle number is 55 so that's the median.
if there are an even number of terms then there is no middle, in that case you take the average of the 2 middle numbers and call that the median.

let me know if you have any questions!!!!

Noemi has 45 minutes to get ready for the school. She spend x minutes getting dressed. Write an expression that represents the number of minutes she still has to get ready

Answers

the equation she could use is 45-x=

the sides of the hexagon shown are equal in length. the perimeter of the hexagon is at most 42 inches. find the possible side lengths of the hexagon. Someone plz helpz

Answers

hexagon has 6 sides so you divide 42/6. Equals 7 so one example is each side is 7 inches.

Draq is painting a rectangular wall that is 15 ft. Long and 8ft. High. The wall has three Windows, each measuring 3 ft. by 4ft. How many square feet must be painted?

Answers

Total area of rectangular wall = 8ft * 15ft = 120 ft²

Each window area = 3ft *4ft = 12 ft²

For the three windows = 3 * 12 = 36 ft²

Area that must be painted = 120ft² - 36ft²  = 84 ft²     

It took 7 hours to mow 4 lawns. How many lawns can I mow in 35 hours? Confused.. Please Check!!!

Answers

7  35   4x35/7= 20 lawns
4   x
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