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sergey [27]
2 years ago
7

Figure A is a scale image of Figure B. What is the value of x?

Mathematics
1 answer:
kari74 [83]2 years ago
4 0

Hey there! :)

Answer:

x = 21 units.

Step-by-step explanation:

Since we know Figure A is just Figure B scaled, we can set up a proportion:

\frac{45}{35}= \frac{27}{x}

Cross multiply to solve for x:

45 · x = 35 · 27

45x = 945

Divide both sides by 45:

x = 21 units.

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A dripping tap loses water at a rate of 5mL a minute.
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1 liter = 1000mL

Divide 1000mL by mL per minute:

1000 / 5 = 200 minutes ( 3 hours and 20 minutes)

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3 years ago
What is the volume of a hemisphere with a radius of 26.7 m, rounded to the nearest tenth of a cubic meter?
attashe74 [19]

Answer:

39,865.1m^3

Step-by-step explanation:

a hemisphere is half a sphere.

And if the formula for the volume of a sphere is:

V=\frac{4\pi r^3}{3}

we must calculate the volume of the sphere and in the end divide by two to find the volume of the hemisphere.

Since the radius is:

r=26.7m

substituting this into the formula for volume:

V=\frac{4\pi (26.7m)^3}{3} \\\\V=\frac{4(3.1416)(19,034.163m^3)}{3} \\\\V=79,730.12m^3

this is the volume of the total sphere, thus the volume of a hemisphere is:

\frac{V}{2}=\frac{79,730.12m^3}{2}\\  =39,865.06m^3

rounding to the nearest tenth:

39,865.1m^3

8 0
3 years ago
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artcher [175]

Answer:

I might be wrong but since ur in a rush: 173

Step-by-step explanation:

3 0
2 years ago
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Evan used half of his paycheck for his car payment, then 125 for groceries. If he has 215 left, how much was his paycheck?
Stella [2.4K]

Answer:

680

Step-by-step explanation:

125 + 215 = 340

340+340 = 680

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3 years ago
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1 point
BARSIC [14]
The answer to this Is 38.4
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