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meriva
3 years ago
12

Estimate each product 4.2×3.1

Mathematics
2 answers:
BabaBlast [244]3 years ago
5 0
4.2 times 3.1 is 13.02.
velikii [3]3 years ago
5 0
4.2 times 3.1 equals 13.02
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An ice cream cone has a radius of 3 inches and a height of 6 inches. Which measurement is the closest to the volume in cubic inc
fomenos
56.52 cubic inches. Volume equals pi times the radius squared times the height divided by three.


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3 years ago
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5 Michiko has a metal container in the shape of a cuboid. The container is 2.4 m long, 1.2 m wide and 0.6 m high. Michiko plans
konstantin123 [22]

Answer:

a) Michiko needs to buy 18 tins of paint.

b) cost of paint would be $152.82

Step-by-step explanation:

Surface area of cuboid = 2lw + 2lh + 2hw

Length (l) = 2.4 m

Width (w) = 1.2 m

Height (h) = 0.6 m

SF = 2(2.4 × 1.2) + 2(2.4 × 0.6) + 2(0.6 × 1.2)

   = 5.76 + 2.88 + 1.44

   = 10.08 meter²

Paint coverage is 4.5 meter² per liter.

Total paint used in one coat =

                                              = 2.24 liters

Paint used in double coats = 2.24 × 2 = 4.48 liters

a) Size of one tin paint = 250 ml

1 liters = 1000 ml

4.48 liters = 4.48 × 1000 = 4480 ml

Number of tins needed by Michiko =

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b) Cost of one tin of metal paint = $8.49

∴ cost of 18 tins of paint = $152.82

a) Michiko needs to buy 18 tins of paint.

b) cost of paint would be $152.82

3 0
2 years ago
Michael estimated his mass as 8 kilograms. is his estimate resonable? justify your answer.
Zarrin [17]
His estimate is not reasonable because he would have to be more descriptive in order to have his answer justified
5 0
3 years ago
Answer these 4 questions for brainliest! :)
Verdich [7]

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2. X-5+5x+2. Again, do the numerical operations first. -5+2=-3. X+5x=6x. So it would be 6x-3.

3. 2x+7-4x-8. 7-8=-1. 2x-4x=-2x. So it would be -2x-1.

4. (4+3)x+2x-5. Do the operation in the parenthesis first. Then it would be (7)x or just 7x+2x-5. Simplify to 9x-5.

4 0
2 years ago
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Answer:

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Step-by-step explanation:

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