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frozen [14]
3 years ago
15

blair cuts a ribbon into 2 equal pieces. then she cut 4 inches off one piece. that piece is now 5 inches long. what was the leng

th of the original ribbon?
Mathematics
1 answer:
Ksju [112]3 years ago
4 0
The original ribbon was 18 inches long.
hope it helps
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Write a rule to describe the function shown.
GREYUIT [131]
Y = 2/3x
it's the best answer
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3 years ago
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How do you determine the slope interscept equation of two given pointa
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4 0
3 years ago
A sector with a radius of 15 cm has a central angle measure of 8π/5 what is the area of the sector
Inessa05 [86]

Answer:

area of the sector = 360π cm²

Step-by-step explanation:

To calculate the area of the sector, we will follow the steps below;

First write down the formula for calculating the area of a sector.

If angle Ф is measured in degree, then

area of sector = Ф/360   × πr²

but if angle Ф is measured in radians, then

area of sector = 1/2 × r² × Ф

In this case the angle is measured in radiance, hence we will use the second formula

From the question given, radius = 15 cm  and angle Ф = 8π/5

area of sector = 1/2 × r² × Ф  

                         =1/2 × 15² ×  8π/5

                         =1/2 ×225 × 8π/5

                          =360π cm²

area of the sector = 360π cm²

8 0
3 years ago
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
What is x - 5y = 13 and 9y - x = -17 using elimination method
Genrish500 [490]
X +(-5y)=  13
-x+  9y =(-17)
0+<u>4y</u>=<u>-4</u>
    4    4
y=1
x+-5(1)=13
x-5=13
 +5 <u>+5
</u>  x=18
  y=1
6 0
3 years ago
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