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3 years ago

1. What is 25% of 50? __- is _ % of Solution:_____

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

12.5 - is 25% of
Solution: 50

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in one week, 103 students were absent,17 fewer students were absent than the week before. Howe many students were absent in thos

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That would mean the week before there were 120 students, so you have to add 120 and 103 to get how many there were absent in those two weeks which would be 123

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3 years ago

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Charge q is one unit of distance away from the source charge s. Charge p is two times further away. The force exerted between S

finlep [7]

Charge q is 1 unit of distance away from the source charge S. Charge p is two times further away. The force exerted between S and q is _____ the force exerted between S and p

a. 1/2

b. 2 times

c. 1/4

d. 4 times

Answer:

4 times

Step-by-step explanation:

Given the following :

Distance between q and S (r) = 1 unit

Distance between P and S (r) = 2 × 1 unit = 2

According to coliumbs law:

F = Ke(q1q2) /r^2

Where F = electrostatic force, Ke = coloumbs constant

q1,q2 = charges, r = distance between two charges

For q and S :

Fsq = Ke(q1q2) / 1^2

Fsq = Ke(q1q2) - - - - - equation 1

For P and S :

Fsp = Ke(q1q2) / 2^2

Fsp = Ke(q1q2) / 4 - - - - - equation 2

Dibiding equation 1 by equation 2

Fsq/Fsp = Ke(q1q2) / Ke(q1q2)/4

Fsq / Fsp = Ke(q1q2) × 4 / Ke(q1q2)

Fsq / Fsp = 4 / 1

Using cross multiplication

Therefore, Fsq = 4 × Fsp

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3 years ago

Carol is making yogurt smoothies. each smoothie uses 1/3 cup of yogurt. she has 4 cups of yogurt. how many smoothies can she mak

Anestetic [448]

Answer:

Step-by-step explanation:

1/3 divide by 4

Take the reciprocal and get 3 times 4

Gives you 12.

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3 years ago

Translate the phrase into a math expression 12 less than twice a number

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Answer:

Step-by-step explanation:

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3 years ago

Rachel earned $85.25 for working 6 1 4 hours. How much does Rachel earn per hour?

GaryK [48]

Answer:

Rachel earns per hour is $ 13.64 .

Step-by-step explanation:

As given

Rachel earned $85.25 for working $6 \frac{1}{4}$ hours.

i.e

Rachel earned $85.25 for working $\frac{25}{4}$ hours.

Now calculate earning of Rachel for 1 hour .

$Rachel\ earning\ for\ one\ hour = \frac{Total\ earning}{Total\ time}$

$Rachel\ earning\ for\ one\ hour = \frac{85.25}{\frac{25}{4}}$

$Rachel\ earning\ for\ one\ hour = \frac{85.25\times 4}{25}$

$Rachel\ earning\ for\ one\ hour = \frac{341}{25}$

$Rachel\ earning\ for\ one\ hour = \$ 13.64$

Therefore Rachel earns per hour is $ 13.64 .

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2 years ago

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1. What is 25% of 50? ____- is ___ % of Solution:_____

1. What is 25% of 50? __- is _ % of Solution:_____