Answer:
Step-by-step explanation: is it addition or multiplication or what?
Well first of all the sales tax is 4.80 so now you add them.So 59.99 + 4.80 is 64.79.
But if you're supposed to round then you would just add 60.00 + 4.80 is 64.80.
Hope this helps :D
If I'm wrong I'm sorry D:
I believe the answer would be 7
Answer:
The perimeter is 43.6 cm
Step-by-step explanation:
In this question, we are tasked with calculating the perimeter of the sector.
Firstly, we define what a sector is. A sector is part of a circle which is is blinded by two radii and an arc. Hence we say a sector contains two radii.
Thus, to calculate the perimeter of the sector, we need the length of the arc added to 2 * length of the radius
Let’s calculate the length of the arc.
Mathematically, this is theta/360 * 2 * pi * r
where theta is the angle subtended at the middle of the circle which is 135 according to the question, and our radius is 10cm
Thus, we have
135/360 * 2 * 22/7 * 10 = 23.57 cm
Adding two radii to this, we have;
23.57 + 2(10)
= 23.57 + 20 = 43.57 = 43.6 cm to 1 decimal place
So to add or subtract fractions, the bottom number must be the same
so we need to make the bottom numbers the same without changing the fraction itself
exg to change 1/4 to 4/16 you multiply 1/4 by 4/4 (which equals 1) to get 4/16
so we need to find the Least Common Multiple or the smallest number that each can multiply into so
first we find the factors
15=3 times 5
6=2 times 3
we find the numbers in both of them
there is one 2, one 3, and one 5 so 2 times 3 times 5 or 30
the LCM=30
8/15 times 2/2 (or 1)=16/30
1/6 times 5/5 (or 1)=5/30
16/30-6/30=(16-5)/30=11/30
