2/5 ÷ x = 4/5
multiply both sides by x to get it out of the denominator.
2/5 = 4/5x
now divide each side by 4/5 to get x by itself.
2/5 ÷ 4/5 = x
divide fractions by multiplying the reciprocal of the divisor.
2/5x × 5/4 = x
10/20 = x
1/2 = x
So 2/5 divided by 1/2 =4/5
(1) both pairs of opposite angles are congruent. Opposite angles are equal not congruent
Finding the difference between the two temperatures, it is found that Regina is 38.7ºC degrees colder in January than in July.
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- The mid-afternoon temperature in January is of -12.6ºC.
- In July, it is of 26.1ºC.
- The difference of the temperatures is given by:

From the difference of 38.7ºC, there are two interpretations:
- Regina is 38.7ºC degrees colder in January than in July.
- Regina is 38.7ºC degrees warmer in July than in January.
A similar problem is given at brainly.com/question/22136310
Answer:
Easy
Step-by-step explanation:
as u can see this a obtuse angle witch mean that x= 190
If you would like to know 55 percent of what number is 495, you can calculate this using the following steps:
55% of what number = 495
55% * x = 495
55/100 * x = 495
x = 495 * 100/55
x = 900
The number you are looking for is 900.