Step-by-step explanation:
Let the number be x.
Half of a number is x/2 and a third of the number is x/3
ATQ,

Frist no is 150
Second no is 150/2 = 75
Third no is 50
Answer to the first triangle: 15To solve this we will use the Pythagorean theorem
Pythagorean theorem formula:

Lets do the first triangle.
17 is the hypotenuse, so its going to replace c in the formula.
8 is the height and it is going to replace a in the formula.
a is what we are trying to find, so our b in the equation is going to be the unknown.





now we know that the missing length in the first triangle (a) is 15Can you solve the Other one?
Just comment if you need help on the other one.
Answer:
Step-by-step explanation:
6 faces have an area of 150 cm^2
1 face has an area of 150/6 = 25 cm^2
The formula for the area of one face of a cube = s^2 which is the length of a side squared.
s^2 = 25
sqrt(s^2) = sqrt(25)
s = 5
Answer:
1. 1
2. 5/8
3. 3/4
4. 7/8
5. 5/8
Step-by-step explanation:
1. The denominators are the same, so just add the top numbers (the numerator), 1/7 + 6/7 = 7/7, which is 1.
2. The denominators are the same, so just add the top numbers (the numerator), 7/16+3/16=10/16. 10/16 can be divided by 2 to get 5/8.
3. 1/6=2/12. So, the new problem is 2/12+7/12. Add the numbers, and you get 9/12. Divide the top and bottom by 3, and your answer is 3/4.
4. 3/4=6/8. The new problem is 6/8+1/8. This is 7/8.
5. 1/4=2/8. The new problem is 2/8+3/8. 2+3 is 5, so your answer is 5/8.