Y can be 4 because:
2y = 2*4 = 8
48 - 8 = 40
After that we calculate using 5x:
5x = 40
x = 40 / 5
x = 8
The same logic and numbers can apply to the second equation:
2y = 2*4 = 8
32 - 8 = 24
Now we work with 3x:
3x = 24
x = 24 / 3
x = 8
Answer:
Hope it helped,
Happy homework/ study/ exam!
Number of songs * cost per song
n * .99
.99n
C because a rectangle has 4 lines of symmetry
No. You have to calculate the unit rate by dividing 30 and 6 which is 5. Then 40 divided by 18 which is 2.22 repeating. since they don't equal the same thing, it is false.
The area of the portion of the windshield cleaned by the 10-in wiper blade is 106.85in² .
We have been provided that the Length of blade is 15 inches and the Angle of rotation = 98°
We are required to calculate the area of the portion of the windshield cleaned by the 10-in wiper blade.
We have to solve this by using area of a sector.
Area of a sector = ½r²θ
where θ is in radians.
So, angle of rotation (98°) must first be converted to radians
Converting 98º to radians, we get
98×π/180 = 49π/90
The area of the region swept out by the wiper blade
= (area of the sector where r = 15 and θ = 49π/90) - (area of the sector where r = (15-10) and θ = 49π/90).
So, Area = ½×15²×49π/0 - ½×5²×49π/90
= ½×49π/90(15²-10²)
= 49π/180× (225 - 100)
= 49π/180 × 125
= 1225π/36
Area = 106.8472in²
=106.85 in²
Hence, the area of the portion of the windshield cleaned by the 10-in wiper blade is 106.85in²
To know more about area of a sector- brainly.com/question/7512468
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