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solong [7]
3 years ago
5

A packages of 4 mechanical pencils comes with 2 free erasers. If you get the total of 12 free erasers, how many packages of penc

ils did you buy?
Mathematics
2 answers:
Mariulka [41]3 years ago
7 0

Answer:


Step-by-step explanation:


pychu [463]3 years ago
7 0
6 because 12 divided by 2 = 6
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Plzz helppp it's due today​
juin [17]

Answer:

8

Step-by-step explanation:

use trig functions

2 sides and 1 angle given

Sides given

  • hypotenuse -> x
  • opposite side to 30˚ -> 4

Angle

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trig function associated with hyp and opp is sin

sin(x) = opp/hyp

substitute

sin 30˚ = 4/x

solve for x

0.5 = 4/x

0.5x = 4

x = 8

7 0
3 years ago
Read 2 more answers
How to estimate 51% of 62
timofeeve [1]
51% = 50%

1/2 * 62 or 62 ÷ 2 = 31

Answer: 31
5 0
2 years ago
Select the correct answer.
maksim [4K]

Answer: B

Step-by-step explanation:

5 0
2 years ago
The red blood cell counts​ (in millions of cells per​ microliter) for a population of adult males can be approximated by a norma
skad [1K]

Answer:

(a) Minimum red blood cells 5.744 million cells per micro liter

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Step-by-step explanation:

Z-score formula is = \frac{x-u}{Standard deviation}

Z-score = \frac{x-5.5}{0.4}

The value of z-score is 0.61 so then x will be;

x = 5.744

The minimum red blood cells count that can in top is 27% of count which is 5.744 million cells per micro liter.

Z-score = \frac{x-5.5}{0.4}

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x = 5.068

The maximum red blood cells count that can be in top is 14% of count which is 5.068 million cells per micro liter.

6 0
3 years ago
What 4 coins equal 90¢
N76 [4]

Answer:

half dollar, quarter, dime and nickel

Step-by-step explanation:

When you sum it up it will give you 90 cents.

3 0
3 years ago
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