Miznatnasah

06.05.2020 • 

Mathematics

7 a. A small bar of gold measures 40mm by 25mm by 2mm. One cubic millimeter of gold weighs about 0.0005 ounce. Find the voulme in cubic millimeters and the weight ounces of the small bar of gold. (Note--give volume answer in numbers on 7a.) *

7b. Give the weight in ounces of the above bar of gold in #7. (Note--give weight in numbers) *

8a. History: A typical stone on the lowest level of the Great Pyramid in Egypt was a rectangular prism 5 feet lonng, by 5 feet wide, by 6 feet deep and weighed 15 tons. What is the volume of the average stone? (Note--give volume answer in numbers) *

8b. How much did one cubic foot of the stone weigh? (Hint divide the weight by the volume and find the tonage of one cubic foot of the stone) *

9a. Hank has cards that are 8 inches by 4 inches. A stack of these fits into the box as shown and uses up 32 cubic inches of volume. How tall is the stack of cards? (Use numbers only in your answer) *

9b. What percent of the box's volume is taken up by the cards? (HINT--Solve the volume of the box then set up proportions) part to whole volume cards/the total volume = x/100 *

IF YOU ANSWER ILL GIVE YOU BRAINLESS

Ответ:

Yailynn565

10.05.2020

Mathematics

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Volume of the rectangle prism = 2.9 x 2.1 x 2.5 = 15.225

Volume of the triangle prism = 1/2 x 2.1 x 2.4 x 2.9 = 7.308

Total Volume = 15.225 + 7.308 = 22.53 mm³ (nearest hundredth)

  22.53 mm³ 

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