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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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An artist can sell 20 copies of a painting at $100 each, but for each additional copy he
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make 10 copies and each will be sold for 200dollars

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3 years ago
Matthew uses this scale model of a design he plans to paint on a wall. He uses the key 1 cm = 2.5 ft. One gallon of paint will c
MatroZZZ [7]

Answer:

160

Step-by-step explanation:

400 / 2.5 = 160

160 x 1 = 160

3 0
2 years ago
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Trisha noticed that three copies of a certain triangle could be arranged in a way that the three angles of the triangle form a s
anyanavicka [17]
C) sum of interior angles must be 180°.

This is because a straight line = 180°, so if the interior angles of a triangle = 180° they can form a straight line if arranged correctly.
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What shape will you get if you take a cross section of a square pyramid parallel to its base? ANSWERS: A rectangle A triangle A
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A square

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5 0
3 years ago
Calculate the perimeter of the composite figure. Round your answer to the nearest hundredth. Use 3.14 for $\pi$ .
Elena-2011 [213]

1. Perimeter is 3 + 3 +3 +4 +5 = 18 feet

 Area = 3*3 = 9, 1/2*3*4 = 6, 9 + 6 =15 square feet

2. perimeter = 2.5 +2.5+ 2.5+2.5+0.5+0.5 = 11 meters

  Area = 3*.5 = 1.5, 3*2=6,  6+1.5 = 7.5 square meters

3. perimeter = 3.14*2*3 = 18.84 +8 = 26.8 inches

  Area = 6*4 = 24 + 3.14*3^2 = 28.26 = 28.26 +24 = 52.3 inches  

4. surface area = 2*π*6*20+2*π*6^2= 980.2 yards

Volume = π*6^2*20 = 2261.9 cubic yards

5.surface area = 2*(9*7+2*2+2*9) = 190 cm

Volume = 2*7*9 = 126 cubic cm

6. surface area = 2*(11*11+11*11+11*11) = 726 mm

 Volume = 11 *11*11 = 1331 cubic cm

3 0
3 years ago
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