Answer:
first one is right then
45 9/10
31 3/5
99 9/10
3 47/50
6 1/4
12 27/50
10 1/10
Step-by-step explanation:
Answer:
Step-by-step explanation:
The lateral area that Rachel needs to cover is 21 inches squared. You find this by first finding the area of one triangular side. To do this, you must half the base of one side, so it makes 2, and multiply it by the height, which gets you to 7. Then, you must half this, as the formula for the area of a triangle states, and then multiply this by two as you at first found the area of only HALF the triangle. This should still get you to 7. Now, there are three lateral sides, not including the base, so you must multiply 7 by 3. This gets you 21.
19 units
Use the absolute value to find the difference between the values. This ensures that no matter which way round the calculation is done the result is the same
| - 13 - 6 | = | - 19 | = 19
or
| 6 - (- 13) | = | 6 + 13 | = | 19 | = 19
Answer: 
Step-by-step explanation:
When you add fractions with different denominators, you need to find the Least common denominator (LCD):
Descompose the denominators (5 and 15) into its prime factors and then choose the commons and non-commons with the highest exponents:
Divide the LCD by each original denominator of each fraction and multiply the result by each original numerator of each fraction. After this, you can add the numerators and reduce the fraction.
Then:
