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3 years ago

11

At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument

??.

1 answer:

Sholpan [36]3 years ago

6 0

Answer:

6.557377049 but if simplified put either 6.5 or 6.6

Step-by-step explanation:

20 divided by 305 is 0.065. 0.065 times 100 is 6.5 or 6.6. Hope you pass.

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A red horse and a black horse raced on a 1-mile-long circular racetrack. The red horse completed the race in 120 seconds, and th

galben [10]

Answer: The speed of red horse = 44 feet per second and the speed of black horse = 35.2 feet per second.

Step-by-step explanation:

Given: A red horse and a black horse raced on a 1-mile-long circular racetrack.

Time taken by red horse = 120 seconds

Time taken by black horse = 150 seconds

Speed = $\dfrac{Distance}{Time}$

So, speed of red horse = $\dfrac{1}{120}\text{ mile per second}$

Since 1 mile = 5280 feet

Speed of red horse = $\dfrac{5280}{120} =44\text{ feet per second}$

Similarly,

Speed of black horse = $\dfrac{5280}{150} =35.2\text{ feet per second}$

Hence, the speed of red horse = 44 feet per second and the speed of black horse = 35.2 feet per second.

5 0

3 years ago

2. Eliminate the y in the following system of equations. What is the result when you add the two equations?

lisabon 2012 [21]

Answer:

B

Step-by-step explanation:

3x - 2y = 8 → (1)

x + y = 6 → (2)

Multiplying (2) by 2 and adding to (1) will eliminate y

2x + 2y = 12 → (3)

Add (1) and (3) term by term to eliminate y

(3x + 2x) + (- 2y + 2y) = (8 + 12) , that is

5x + 0 = 20

5x = 20 → B

4 0

3 years ago

Decide whether there is enough information to prove that △WXZ≅△YZX using the SAS Congruence Theorem.

wariber [46]

Answer:

A)

Step-by-step explanation:

Angle should be in between two congruent sides.

The arms of ∠W are WX and ZW and these two sides are congruent to the arms of ∠Y , XY & YZ

3 0

3 years ago

2x + 5x = -14<br> What is the answer

Mekhanik [1.2K]

Answer:

x= -2

Step-by-step explanation:

2(-2)+5(-2)= -4+-10= -14

6 0

3 years ago

A peregrine falcon can fly 322 kilometers per hour. How many meters per hour can the falcon fly?

rewona [7]

322 k/h = 322000 meters/h

8 0

3 years ago