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Furkat [3]
3 years ago
13

The chance of winning the race of the horse A is 1/15 and that of horse B is 1/6. What is

Mathematics
1 answer:
irina1246 [14]3 years ago
8 0

Answer:

7/30

Step-by-step explanation:

P = 1/15 + 1/6 = (2+5)/30 = 7/30

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The measures of the legs of a right triangle are 15 m and 20 m. Use the triangle measures and substitute the lengths for a and b
DochEvi [55]

Answer:

25

Step-by-step explanation:

We can use the Pythagorean theorem to determine the length of the hypotenuse

a^2 + b^2 = c^2

15^2 + 20 ^2 = c^2

225 + 400 = c^2

625 = c^2

Take the square root of each side

sqrt(625) = sqrt(c^2)

25 = c

5 0
3 years ago
Theresa Morgan, a chemist, has a 30% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each sh
Bogdan [553]
Let x represent the number of liters of 50% acid Theresa puts into the mix. The the number of liters of 30% acid will be (420-x). The total amount of acid in the final solution will be ...
  0.50x + 0.30(420-x) = 0.45(420)
  0.20x + 126 = 189 . . . . . . . . . . . . . . . simplify
  0.20x = 63 . . . . . . . . . . . . . . . . . . . . . subtract 126
  x = 63/0.20 = 315 . . . . . . . . . . . . . . . liters of 50% solution
  (420-x) = 420-315 = 105 . . . . . . . . . liters of 30% solution

Theresa should mix ...
  105 liters of 30% solution
  315 liters of 50% solution
7 0
4 years ago
Please help with this question !!
mario62 [17]

Answer:

ha

Step-by-step explanation:

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3 0
3 years ago
Calculate the volume of the prism by first finding the total number of half-unit cubes that will fill it. There are 8 half-unit
Tema [17]

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Step-by-step explanation: QPEX VERIFIED JUST DID IT

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3 years ago
What is the solution to the equation x + 5.7 = 6.1?
Ann [662]

The solution is X=0.4

4 0
3 years ago
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