Answer:
Age of teacher = 32 years
Step-by-step explanation:
Average age of 15 students = 16 years
Sum of age of 15 students = 16 * 15 = 240 years
Average of age 15 students and a teacher = 17 years
Sum of age 15 students and a teacher = 17 * 16 = 272 years
Age of teacher = 272 - 240 = 32 years
Answer:
Step-by-step explanation:
you do 11\3 divided by 1\5
Step-by-step explanation:
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.45x+.55x=200
Combine like terms
1x=200
So x is 100
Or you can do 45%+55%=100%
And 100% of 200 is 200
Answer:
Horizontal line
Step-by-step explanation:
Zero slope means that the quotient "rise/run" equals zero.
A zero for a quotient of two numbers implies that the NUMERATOR is zero and the denominator different from zero.
Analyzing what a "rise" of zero means, we understand that there is NO RISE in the graph of the line. And no rise of any type means the line is flat (horizontal).
