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nikklg [1K]
3 years ago
10

Divide 405 in to the ratio 3:12 give answer in the form ... and ...

Mathematics
1 answer:
OLEGan [10]3 years ago
6 0

Answer:

81:324

Step-by-step explanation:

3+12=15

405 div 15 =27

3 times 27 = 81

12 times 27 = 324

81:324

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If I drink 25% of a 700ml bottle of rum, how much is left?
Rudiy27

Answer:

525 ml

Step-by-step explanation:

.25(700) = 175 ml drunk

700 - 175 = 525

5 0
3 years ago
Determine the length of the hypotenuse of a right triangle if the legs have lengths 12 inches and 16 inches?
tiny-mole [99]

Answer:

c = 20 inches

Step-by-step explanation:

To find the sides of a right triangle, you use the Pythagorean Theorem.

a² + b² = c²

You know a and b, and you need to find c, the hypotenuse.

Plug in a and b.

(12)² + (16)² = c²

Simplify by solving the exponents.

144 + 256 = c²

Combine the constants.

400 = c²

Take the square root of both sides.

√400 = √c²

Solve the √

±20 = c

The length cannot be negative, so you can eliminate that as an option.

So, c = 20

5 0
3 years ago
Please help!
Aloiza [94]

Answer:14%

Step-by-step explanation:

final grade score=a

20% of a=15

20/100 x a=15

20a/100=15

Cross multiply

20a=15 x 100

20a=1500

Divide both sides by 20

20a/20=1500/20

a=75

B% of 75=10.5

B/100 x 75=10.5

75B/100=10.5

Cross multiply

75B=10.5 x 100

75B=1050

Divide both sides by 75

75B/75=1050/75

B=14

7 0
3 years ago
Jim needs 4 ½ cups of bleach for every ten gallons of water for cleaning. How many cups of bleach should he use if he is making
Ilya [14]

Answer:

2 1/4 cups of bleach

Step-by-step explanation:

4.5/10=0.45

0.45×5=2.25

6 0
3 years ago
Can someone explain how to do this problem correctly
agasfer [191]

Answer:

88 degrees.

Step-by-step explanation:

The circle in question must be equal to 360 degrees if arc CDA is equal to a number greater than 180.

If 360 degrees is the total measure, and arc CDA is equal to 272 degrees (Which I noticed you placed wrong, it should be in the bigger half of the circle rather than the little half.).

So to get your final answer, you subtract 272 from 360.

360 - 272 = 88 degrees.

3 0
3 years ago
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