Which expression shows that x is increased by 40%?
Responses
A x + 0.40x + 0.40
B
x
0.40 x 0.40
C
x
0.60 x 0.60
D 1.40x
D 1.40x
The expression that shows that x is increased by 40% is D) 1.40x.
To show that x is increased by 40%, you need to add 40% of x to x.
So the correct expression would be D: 1.40x.
To understand why, you can convert the percentage into decimal form by dividing it by 100. In this case, 40% becomes 0.40.
So when you multiply x by 0.40 and add it to the original x, you get a total of 1.40x, which represents the original x increased by 40%.