Step-by-step explanation: First determine whether the number increases or decreases. Since the number changes from 100 to 140 it's getting bigger, so it increases.

To find the percent increase, we use the following formula.

The amount of change is the difference between the two numbers which is 40 and we get this by subtracting 100 from 140. The original number will be the number that we started with which is 100.

140/100 simplifies to 0.4.

Finally, we want the percent increase so we write 0.4 as a percent by moving the decimal point 2 places to the right to get 40%.

Therefore, the percent increase is 40%.

6 0

3 years ago

Select all that apply.

Mashutka [201]

4% is not equivalent to 40%
0.4 is equivalent to 40%. Just move the decimal two places to the right.
2/5 is equivalent to 0.4, which in turn is equivalent to 40%. 2 divided by 5=0.4
The answers are all but 4%

6 0

3 years ago

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Two angles are complementary. The larger angle is 3 degrees less than twice the measure of the smaller angle. Find the measure o

Svetradugi [14.3K]

Answer:

First angle would be 31°, second angle would be 59°

Step-by-step explanation:

You can use the equation 90° = a + (2a - 3°), where a is the measure of your smaller angle.

simplify:

90° = 3a - 3°

93° = 3a

31° = a

let your second angle equal (2a - 3°)

(2(31°) - 3°) = 59°

3 0

2 years ago

|x-7|+9=12 is one, two or no solution?

allochka39001 [22]

Answer:

There are 2-solutions.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers