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s344n2d4d5 [400]
3 years ago
6

In a school of 500 students, 160 have blue eyes, 320 have brown eyes and 20 have green eyes. In a class of 25 students how many

would you expect to have blue eyes
Mathematics
1 answer:
Bas_tet [7]3 years ago
6 0
160/500= 80/250 16/50 8/25

Around 32 percent
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I think of a number double it and subtract 2 i get 9 using the statement above
Ainat [17]

Answer:

5.5

Step-by-step explanation:

5.5+5.5=11      11-2=9

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2 years ago
What is the answer? PLZ HELP
rosijanka [135]
The answer is 40/21.
8 0
3 years ago
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M(d)=-0.123x^2+148.83x-21.07<br> When will it reach maximum height of 45000 feet
Setler [38]

Answer: time to reach maximum height = 605

Step-by-step explanation:

The expression that relates height with time is

M(d)=-0.123x^2+148.83x-21.07

Where time = x

d = height

The expression is a quadratic equation. If height of the object is plotted against time, the resulting graph is a parabola whose vertex is equal to the maximum height attained by the object. The time, x corresponding to the vertex is the time for it to reach maximum height.

To find x,

x = -b/2a

Where a= 0.123

b = 148.83

x = - 148.83 / -2 × -0.123

x = -148.83 / -0.246

= 605

Substituting x = 605 in the equation,

M(d)=-0.123x^2+148.83x-21.07

d = -0.123 × 605^2 + 148.83×605

= - 45021.075+ 90042.15

= 45020.4

Approximately 45000 feet

6 0
3 years ago
Sam bought brushes for $8,a palette for $5,and oil paints for $15.He paid $29.82 in all.What sales-tax rate did Sam pay?
Darina [25.2K]

Sam Paid A Sales-Tax Rate Of 6.5%.

This Is Because 8+5+15=28 + 6.5%= 29.82

8 0
3 years ago
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What is M G to the nearest tenth
horsena [70]

Answer:

tan m‹G = 28.2/45.8

m‹G= 31.62°

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2 years ago
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