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matrenka [14]
3 years ago
11

The probability that you can randomly select a red marble from a group of 40 marbles is 720 how many red marbles are there

Mathematics
1 answer:
defon3 years ago
6 0
The answer is 28 red marbles
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The number of pens used varies directly with the number of pieces of paper needed. If 12 pens are used when 40 pieces of paper a
svetlana [45]

Answer:


Step-by-step explanation:

Y=KX


P=KX

12=K40

12/40=K

.3=K

P=.3X

P=.3(240)

P=72

6 0
3 years ago
Help! I will give brainliest!!!!
Strike441 [17]

Answer:

3.14     (or pi )  feet  

Step-by-step explanation:

Entire circle circumference  = pi *d  = 8 pi    feet

45 degrees is a fraction of the entire 360 degrees of the circle

   45 / 360  *  8 pi = pi =  3.14 ft

4 0
2 years ago
C. Supercomputers have been developed that are much larger and can
harkovskaia [24]

Answer:

   4.485 × 〖10〗^10  x    1.3268 × 〖10〗^11 =

   (4.485 x1.3268) ×( 〖10〗^11× 〖10〗^10)

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Step-by-step explanation:

6 0
2 years ago
A commercial property purchased for 1.2 million is revalued at 995,000. Calculate the percentage decrease in the property’s valu
soldi70 [24.7K]

Answer:

17%

Step-by-step explanation:

First: work out the difference (decrease) between the two numbers you are comparing. Then: divide the decrease by the original number and multiply the answer by 100.

First:

1,200,000 - 995,000 = 205,000

Then:

205,000 / 1,200,000 = 0.17

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4 0
3 years ago
Read 2 more answers
Plzzzzz hellllp meeeee plz
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Answer:

(7, 5)

Step-by-step explanation:

When reflecting over the x-axis, the only position that moves is the y-coordinate as it is going above the axis it was previously below. Since point F's original position was (7, -5) it is 5 spaces away from the x-axis. We move 5 places up to be even with the x-axis, then move up another 5 places to reflect the point to get F'.

Hope this Helps!

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3 years ago
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