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3 years ago

Someone help me please

Mathematics

1 answer:

hram777 [196]3 years ago

7 0

First, lets work out how much Shawn paid in fees.
$545 + $2100 + $695 = $3340
This means after fees, Shawn has $3095 left.
A point means 1% of the mortgage. After fees, Shawn paid $3095 for 2 points or 2% of the mortgage. So, 3095 / 2 = 1547.5, meaning 1547.5 is 1% of the mortgage.
After finding that, we need only multiply that by 100 to find the total cost of the house. 1547.5 * 100 = 154750. Meaning the correct answer is D.

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An hourglass consists of two sets of congruent composite figures on either end. Each composite figure is made up of a cone and a

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Answer: third option 268.8

Explanation:

For this kind of proble it is very important that you attach the figure because it contains important information to understand the question.

I have attached the figure for better understanding.

1) The top portion (and the bottom is congruent but rotated 180°) of the hourglass is a figure equivalent to a cylinder on top and a cone on bottom.

So the total volume contained in the top portion is the volume of a cylinder + the volume of a cone.

This is how you calculate the volume of the top portion:

1) The height of the cylinder is 54 mm - 18 mm = 36 mm

2) The formula for the volume of a cylinder is V = π (radius)^2 * height

radius = 8 mm
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=> V = π(8mm)^2 * 36 mm = 2304π (mm)^3

3) The formula for the volume of a cone is V = (1/3)π(radius)^2 * height

radius = 8 mm
height = 18 mm

V = (1/3)π(8mm)^2 * 18 mm = 384π (mm)^3

4) The total volume of the top portion is volumen of the cylindrical part + voume of the cone:

Total voluem = 2304π (mm)^3 + 384π (mm)^3 = 2688π (mm)^3

5) To find the number of seconds <span>it take until all of the sand has dripped to the bottom of the hourglass you have to divide the total volumen of sand by the rate:

time in seconds = total volume of sand / rate of dripping

time in seconds = [2688 π (mm)^3 ] / [10π (mm)^3 / s] = 268.8 s

That is the answer: 268.8 s
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Answer:

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Step-by-step explanation:

Darla has 4 Cylinder Shaped Buckets

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Since the radius and height of the cone scoop and cylindrical buckets are the same,

The number of Cone Scoops it will take to fill the buckets is:

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Answer:

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