Answer:
11/10 as a mixed number is 1 and 1/10
Step-by-step explanation:
10 out of 10 is 1 but there is still another tenth that needs to be added so it is 1 and one tenth.
Answer:
4/9
Step-by-step explanation:
There are 9 positive integers less than 10: {1, 2, 3, 4, 5, 6, 7, 8, 9}.
The 4 primes less than 10 are ... {2, 3, 5, 7}.
The probability Daria selected a prime is 4/9.
Answer:
x=3, y=15
Step-by-step explanation:
We substitute 5x for y, getting 5x = -3x + 24. We add 3 x to both sides, and have a equation like this: 8x = 24. Divide by 8 on both sides, and we know that x = 3. Since y is 5x, y is 5*3, which is 15.
To change a decimal to a fraction, we simply "use as many zeros as there are decimals and lose the dot".
say in this case, 0.8 has 1 decimal, so we'll use one zero at the bottom,
The sum of the interior angles of a polygon is.
Sum = 180(n-2) where n is the number of sides
Thus 180(n-2) = 3780
n-2=3780/180 =21
⇒ n = 21+2 = 23
number of sides is 23
