1.) 6x-8y=18, 2x+8y=6 → Multiplication property of equality
2.) 8x=24 → Addition property of equality
3.) x=3 → Division property of equality
4.) 3(3)-4y=9 → Substitution property of equality
5.) 9-4y=9 → Simplify
6.) -4y=0 → Subtraction property of equality
7.) y=0 → Division property of equality
If we are going to simplify the first number by dividing the given numerator by the denominator, we will get an answer of -5. This number and the second one are examples of rational number for they can be easily expressed as quotient of two number. However, the third one is irrational due to the repeating number 7 after the decimal point. Therefore, the answer is the third choice.
Answer:
10 + 30
Step-by-step explanation:
10-1(-30)
10+1(30)
10+30
Answer:
V≈706.86
Step-by-step explanation:
V=πr2h ( formula for volume of a cylinder)
We use the equation x=810/5.4, which is converted to 8100/54. The answer is that the model was made on a 1in=150ft scale