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Reptile [31]
3 years ago
6

You are making 100 mL of a saline solution in science class that has a strength of 50%.

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
8 0

Answer:

thisis your answer 100,000

Step-by-step explanation:

100

50

40

this is how you add it and you will get your answer

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Aroha is 3 years older than her brother. The sum of Aroha's age and her brother's age is 31. Write and solve and equation to fin
Goryan [66]

Answer:

x+y=31

Step-by-step explanation:

I'd say that would be the equation bc it doesn't really give ages. Although I could be wrong so sorry if I am

4 0
3 years ago
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The width of a rectangle is (x-5) and the length is (x+2). What is the length and width of the rectangle if the area is 18 squar
Murrr4er [49]

Answer:

Length: 9

Width: 2

Step-by-step explanation:

Area = length × width

18 = (x - 5)(x + 2)

18 = x² - 5x + 2x - 10

x² - 3x - 28 = 0

x² - 7x + 4x - 28 = 0

x(x - 7) + 4(x - 7) = 0

(x - 7)(x + 4) = 0

x = 7, -4(not possible)

Length: 7+2 = 9

Width: 7-5 = 2

3 0
3 years ago
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Solve 2r=5s/2 - s/4 for s
Otrada [13]
The awnser for S (0)
3 0
3 years ago
The last time you bought pizza, 3 pizzas were just enough for 7 people. At that rate, how many pizzas should you buy for a party
ddd [48]

Answer:

15 pizzas

Step-by-step explanation:

  1. 3 pizzas=7 people
  2. 6 pizzas=14 people
  3. 9 pizzas=21 people
  4. 12 pizzas=28 people
  5. 15 pizzas=35 people
3 0
3 years ago
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The area of the triangle is 1 ⅗ square inches. If the base of the triangle is 1 ⅕ inches, what is the height?
ASHA 777 [7]

Answer:

The height of the triangle is 2.66666667

Formula needed is Area= base times height divided by 2.

Step-by-step explanation:

Personally the way I did it might be a bit harder, but. converted the fractions to decimals. 1 3/5 turns into 1.6 as the overall area of the triangle, and 1 1/5 turns into 1.2. So now that we have everything convered we need to do the exact opposite of the formula. The last step of the formula is the forst step we do, but just opposite. 1.6 as the area get multiplied by 2 to get 3.2. Then 3.2 gets divied by the base which is 1.2 to get 2.66666667 to be exact. However this can be rounded to 2.7 as well.

5 0
3 years ago
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