Answer:
x = 25
Step-by-step explanation:
Noting that these figures are similar, we set up and solve an equation of ratios:
x 30
---- = ------
15 18
Cross multiplying, we get:
18x = 30(15), or 3x = 5(15) = 75. Then x must be 25.
Can you make the answer clearer. I would be glad to help you. I just don't understand where it says "the sum of three numbers is 16 the sum of twice the first number"
The result is TR (20).
To determine the result of TR (915) - TR (895), the following logical-mathematical reasoning must be made:
We find a constant that is repeated in both values, which is TR.
In turn, both values have a different quantity, which multiplies that constant.
Therefore, you must perform this multiplication and then subtract the results, to obtain the final result.
- TR (915) - TR (895) = X
- 915TR - 895TR = X
- 20TR = X
Therefore, the result is TR (20).
Learn more in brainly.com/question/16943454
Answer:
134°
Step-by-step explanation:
The sum of interior angles of a regular polygon is: (n - 2)180
Hexagon has six sides, n is 6
Sum of it's angles is (6 - 2)180 = 720
sum of our hexagon:
119 + 129 + 104 + 139 + 95 + x = 720°
x is 134°
Last year He was 7 years old.
His father is 4 times the age 7 x 4 = 28
Last year his dad was 28, so this year he is 29.
Combined age this year = 29 + 8 = 37
51 - 37 = 14 years
14/ 2 people = 7 years
8 + 7 = 15
29 + 7 = 36
15 + 36 = 51
It will take 7 years.
