First, let's write an equation for the situation.
Jim's weight is 30 pounds less than Tom's, so his weight is:
n - 30
If Tom's and Jim's weights add to 210:
n + (n - 30) = 210
Solve for n:
2n - 30 = 210
2n = 240
n = 120
Tom weighs 120 pounds.
Answer:maybe
Step-by-step explanation:It depends on your formula lets say that the formula is T=d/r
T=time
D=distance
R=rate
which when you put in r it would be the speed so if
the formula is s instead of r it means the same thing just how fast the car is moving.
Answer:
Your answer is 7 children on each team
Step-by-step explanation:
The question clearly states "divided," so divide 56 by 8.
The question is asking you how many kids are on each team.
If I didn't understand the question properly, let me know. :) good luck!
Answer:
Line A, (horizontal slope), Line B, (Negative slope) Line C, (Vertical slope) Line D, (Undefined slope)
Step-by-step explanation:
Answer:
Step-by-step explanation:
The null hypothesis is the hypothesis that is assumed to be true. It is an expression that is the opposite of what the researcher predicts.
The alternative hypothesis is what the researcher expects or predicts. It is the statement that is believed to be true if the null hypothesis is rejected.
From the given situation,
news article says that high school students are currently spending an average of 15 hours per week doing homework online. This is the null hypothesis.
H0: µ = 15 hours
You don't think this is an accurate estimate, although you're not sure whether the real value is higher or lower. This is the alternative hypothesis.
Ha : µ ≠ 15 hours
