So it gives you the "= 210" part of it so you just need to figure out how to write "40% of a number is added to the number"
the questions already tells you that "the number" is "x"
so that means "40% of x is added to x"
instead of writing "add" you can replace it with a plus sign "+"
(40% of x) + x
another way to write 40% of x is 0.40x
so your equation is .4x + x = 210
Answer:
<em>The single percentage change is 27.46%</em>
Step-by-step explanation:
<u>Percentage</u>
Suppose x is the initial number. It will be decreased by 7%.
(7/100)x=0.07x
x - 0.07x = 0.93x
This last number will be decreased by 22%.
0.93x*(22/100)=0.2046x
0.93x-0.2046x=0.7254x
The last number is 72.54% of the initial number. This is equivalent to a single decrease of:
100% - 72.54% = 27.46%
The single percentage change is 27.46%
Answer:
6 feet 8 inches
Step-by-step explanation:
The mirror ensures that the line of sight makes similar triangles, so ...
x/10 = 4/6
x = 40/6 . . . . feet = 6 2/3 ft = 6 ft 8 in
The mirror is 6 feet 8 inches from the goal.
The answer is $15.75
example: you pay someone 500$ online and the fee for the service is 15$.
what percentage is the fee? ?% of $500 =15 which is 3%
My guess is the answer is b but you may want to get another answer from someone else
