Answer:
27 boys
Step-by-step explanation:
The ratio of boys to girls is 3 to 6. The total is (3+6) is 9.
Using the ratio of boys to total (3 to 9), we set it equal to the ratio of boys to total students (81)
3 b
---- = -------------
9 81
We can solve this using cross products.
3*81 = 9b
243 = 9b
Divide each side by 9
243/9 =9b/9
27 =b
There are 27 boys
A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1.
Answer:
x = √72 and yes, it forms a Pythagorean triple
Step-by-step explanation:
a^2 + b^2 = c^2,
3 is a, x is b, anf 9 is c
3^2 + x^2 = 9^2
9 + x^2 = 81
Subtract 9 from both sides
x^2 = 72
x = √72
a Pythagorean triple is a^2 + b^2 = c^2, and this has it
Answer:
pretty sure its c
Step-by-step explanation:
1. One Solution: Slopes:1 and -1 y-ints:1 and 2
2. Many: Slopes:1 and 1 y-ints:1 and 1
3. Undefined: Slopes:1 and 1 y-ints:1 and 2
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