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padilas [110]
3 years ago
12

In a population of grasshoppers, the ratio of grasshoppers with a white marking to those without a white marking is 2:3. An ento

mologist captures and photographs 290 grasshoppers. How many photographs are likely to show grasshoppers with a white marking?
A. 193
B. 58
C. 112
D. 116
Mathematics
1 answer:
LekaFEV [45]3 years ago
3 0

Answer:

D. 116

Step-by-step explanation:

Let the grasshoppers with a white marking be 2x.

Let the grasshoppers without a white marking be 3x.

2x + 3x = 290

5x = 290

x = 290 / 5

x = 58

The grasshoppers with a white marking

= 2x

= 2 ( 58 )

= 116

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shepuryov [24]
Let p = number of pennies.
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3 years ago
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8 0
3 years ago
Read 2 more answers
A company offers a flood insurance policy that costs a homeowner $200 per year, and the company will make a payout of $100,000 t
wel

Answer:

σX​ = 3161

Step-by-step explanation:

The standard deviation is the square root of the multiplication of each probability multiplied by the squared difference between the values and the mean.

In this question:

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