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choli [55]
2 years ago
11

4 is 80% of what number?

Mathematics
1 answer:
Andrew [12]2 years ago
3 0
Is easy why the best answer is 80 why it is 80%
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A 900-kg giraffe runs across a field at a rate of 50 km/hr. What is the magnitude of its momentum?
ololo11 [35]

Answer:

As per the statement:

A 900-kg giraffe runs across a field at a rate of 50 km/hr.

⇒ m = 900 kg and

v=50 km/hr

Use conversion:

1 km/hr = \frac{5}{18} m/s

v = 50 \times \frac{5}{18} = \frac{250}{18} m/s

The magnitude of its momentum is given by:

p = mv

where

m is the mass in kg

v is the speed in m/s

Substitute the given value we have;

p = 900 \times \frac{250}{18} = 50 \times 250 = 12500 kg m/s

Therefore, the magnitude of its momentum is  12500 kg m/s




3 0
3 years ago
Read 2 more answers
Julie and her friend went to the movies and bought one jumbo popcorn and two chocholate chip cookies for 5$. Marvin and his frie
makvit [3.9K]
Let j = cost of one jumbo popcorn, and c = cost of one chocolate chip cookie.

Then, based upon the given info, 1j + 2c = $5.

Also, 3j + 5c = $14.50

Let's solve this system of equations using addition/subtraction:

Mult. the first equation by -3, to obtain   -3j - 6c = -$15

Now add this result to the 2nd equation:   

-3j - 6c = -$15
3j + 5c = $14.50
----------------------
     -c = -$0.50, or c = $0.50.       Since   3j + 5c = $14.50, subst. $0.50 for c 
lets us find j:

3j + 5($0.50) = $14.50, so 3j = $12.00.  Thus, j = $4.00.


Jumbo popcorn is $4/bag, and choc. chip cookies $0.50 each.
4 0
3 years ago
The table represents the function f(x) .
MatroZZZ [7]

Answer:

The answer you are looking for is A: f(x)=2/3t+4

Step-by-step explanation:


6 0
3 years ago
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What is the shape of the cross-section formed when a cylinder intersects a plane as shown in the drawing?
elena55 [62]

Answer:

There is no drawing we will not be able to answer your question.

Step-by-step explanation:


8 0
3 years ago
Carol has 1 5/8 cups of yogurt to make smoothies. Each smoothie uses 1/3 cup of yogurt. What is the maximum number of smoothies
Mashutka [201]

Answer:

The maximal number of smothies that Carol can make with the yogurt is 4.

Step-by-step explanation:

Divide the number of cups Carol has by the number of cups needed to make one smoothie.

1\dfrac{5}{8}:\dfrac{1}{3}=\dfrac{13}{8}\cdot \dfrac{3}{1}=\dfrac{39}{8}=4\dfrac{7}{8}.

The maximal number of smothies that Carol can make with the yogurt is 4.

6 0
3 years ago
Read 2 more answers
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