You would multiply the orignial price by (10%) converted to decimal to find the discount:
21 * 0.10
=2.10
Then, you subract the discount from the original price to see how much he paid:
21 - 2.10 = $18.90
Answer:
Option 4
Step-by-step explanation:
The smaller sides must add up to be greater than the largest side so:
1) 6 + 8 < 15
1) No
2) 6 + 9 = 15
2) No
3) 9 + 6 < 16
3) No
4) 9 + 8 > 16
4) Yes
Answer:
a. -2
b. 48, -96, 192
Step-by-step explanation:
The perimeter of inside of the track is 536.44m
<h3>Perimeter of a circle and rectangle</h3>
The perimeter of a circle is also known as the circumference of the circle. The formula for calculating the circumference is expressed as:
C = 2πr
where
r is the radius
From the given diagram
r = 46/2 = 23m
C = 2(3.14)(23)
C = 144.44m
Find the perimeter of the rectangle
P = 2(l+w)
p = 2(46+150)
P = 2(196)
P =392m
The perimeter of the inside track = 144.44 + 392
The perimeter of the inside track = 536.44m
Hence the perimeter of inside of the track is 536.44m
Learn more on perimeter of composite shape here: brainly.com/question/16247505
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