Write a unit rate for the situation. Show work

1 answer:

6 0

7. 50 words per minute
250 ÷ 5 = 50

8. $0.33 for every 1 banana
1.98 ÷ 6 = 0.33

9. 5 meters per second
20 ÷ 4 = 5

10. 20 miles for every 1 gallon
400 ÷ 20 = 20

Hope this helps! If you have any questions feel free to ask :)

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In 2000 the number of students enrolled at Arlington County day school was 823 students in 2010 the population was approximately

RoseWind [281]

Answer:

enrollment decreases by 14.34%.

Step-by-step explanation:

Given that number of students enrolled in 2000 = 823

Given that number of students enrolled in 2010 = 705

705 is less than 823 so that means number of students enrollment is decreasing.

Decrease = 823-705 = 118

Percent decrease is given by formula:

$Percent =\frac{part}{whole}\cdot100 =\frac{118}{823}\cdot100= 14.3377885784$

which is approx 14.34%.

Hence final answer is that enrollment decreases by 14.34%

5 0

3 years ago

Not sure need help

lord [1]

Answer:

Step-by-step explanation:

3-2i+8=23

5+2i+23

2i=18

i=-9

3 0

2 years ago

The exact vaule of cos(247.5 degrees)

Leni [432]

$cos(247.5 deg)=cos( \frac{495deg}{2})
 = - \sqrt{ \frac{1+cos(495deg)}{2} } 
 = -\sqrt{ \frac{1- \frac{ \sqrt{2} }{2} }{2} } 
 = \frac{ \sqrt{2- \sqrt{2} } }{2}$