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vodomira [7]
3 years ago
7

33 1/3% of what number is 21? (Show work)

Mathematics
1 answer:
grandymaker [24]3 years ago
4 0
33 and 1/3 % is equivalent to 1/3 

(1/3) of what number is 21 

in math-ese: 

(1/3) * x = 21 

multiplying both sides by 3... 

x = 63 

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Your friend says that there are 36 feet in 12 yards is your friend correct? explain your reasoning.
galben [10]

Answer:

Yes

Step-by-step explanation:

1 yard is 3 feet. so 12 yards is 36 by 12*3

7 0
3 years ago
a point on the rim of a wheel moves with a velocity of 80 feet per second. What is the angular velocity of the point if the diam
valentina_108 [34]

The angular velocity is 16 radians per second

<u>Solution:</u>

The angular velocity of point is given by formula:

w = \frac{v}{r}

Where,

w is the angular velocity in radians

v is the linear velocity

r is the radius

Given that diameter of wheel is 10 feet

radius=\frac{diameter}{2}

radius = \frac{10}{2}=5

Thus radius is 5 feet

A point on the rim of a wheel moves with a velocity of 80 feet per second

Linear velocity = v = 80 feet per second

Therefore, angular velocity is given as:

w = \frac{80}{5} = 16

Thus angular velocity is 16 radians per second

6 0
3 years ago
Determine if the triangle with the given sides is acute, obtuse, or right. 36, 49, 60
kotykmax [81]
<span>When given 3 triangle sides, to determine if the triangle is acute, right or obtuse:
</span>1) Square all 3 sides.
2) Sum the squares of the 2 shortest sides.
3) Compare this sum to the square of the 3rd side.

if sum > 3rd side²   Acute Triangle
if sum = 3rd side²   Right Triangle<span>
if sum < 3rd side²   Obtuse Triangle

1) 1,296   2,401   3,600
2) Sum = 3,697
3) </span><span>3,697 is greater than 3,600
Therefore, the triangle is acute.

Source:
http://www.1728.org/triantest.htm


</span>
4 0
3 years ago
students need to paint 500 pumpkins for the fair. They already painted 193. How many pumpkins are left to paint?
lys-0071 [83]
You would subtract the the amount painted from 500.
500-193=307
They have to paint 307 more.
3 0
3 years ago
Read 2 more answers
Mercury is about 57,000,000 from the sun,whereas neptune is about 4.5 x 10 to the 9th power km from the sun. What is the differe
slavikrds [6]

Answer:

4,443,000,000 or 4.443 * 10^9 km.

Step-by-step explanation:

Neptune's distance from the sun = 4.5 * 10^9

=  4,500,000,000 km.

The required difference is

4,500,000,000 - 57,000,000

= 4,443,000,000  or 4.443 * 10^9.

7 0
3 years ago
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