You can divide 100 by 4 to find out how many lunches you can buy
or multiply 4 by the number of lunches you have had
100 - that number^=money remaining
Answer:
d. Independent-samples t-test
Step-by-step explanation:
The independent samples t-test can be described as a test under which two groups are compared on the mean value of a continuous normally distributed variable.
The independent samples t-test model is based on the assumption that the mean score of the dependent variable is different because the of the impact of the independent variable that differentiates the two groups.
The independent-samples t-test is also known as a parametric test in which the means of two independent groups are compared with the aim of ascertaining if there is statistical evidence that the associated population means are significantly different.
In this question, there are two independent groups which we intend to compare in order to investigate the effect of antidepressants. The first group is the group of people given antidepressant, while the second is another group of people that is given a placebo. This is a perfect example of independent-samples t-test.
Therefore, the correct option is d. Independent-samples t-test. That is, the type of parametric test that should be run in order to investigate the effect of antidepressants by giving one group of people an antidepressant and another group of people a placebo.
D. Because Ram only did 2 hours so then that makes 2 hours of work done but then left for whatever reason. Ajit left 3 hours BEFORE the completion of the work and that gives us info that there were hours put in between both Rams and Ajits work. They all started at the same time so it doesn't mean that Ajit didn't do any of the work. Ajit can work for 12 hours POSSIBLY. It did not say he can exact. So it leaves to Suresh that can work up to 15 hours of the work but we dont know how long he did it. Suresh either could just gone over or less than 15 hours.
Answer:
your answer is -36 negative thirty six
Step-by-step explanation:
(-2)-7
(-9)*4
-36
The answer is <span>B) 41</span>
Step 1: Find x and y
Step 2: Calculate 5x + 7y
Step 1.
2x + 3y = 17
3x + 4y = 24
_________
Multiple the first equation by 3, and the second one by -2:
3 * 2x + 3 * 3y = 3 * 17
(-2) * 3x + (-2) * 4y = (-2) * 24
_________
6x + 9y = 51
-6x - 8y = - 48
_________
Sum up these two equations:
6x + 9y + (-6x - 8y) = 51 + (-48)
6x + 9y - 6x - 8y = 51 - 48
_________
6x can be canceled:
9y - 8y = 3
y = 3
Now, replace y in one of the equtions:
3x + 4y = 24
3x + 4*3 = 24
3x + 12 = 24
3x = 24 - 12
3x = 12
x = 12/3 = 4
Step 2:
Now that we know that x = 4 and y = 3, we can calculate <span>5x +7y:
5x + 7y = 5 * 4 + 7 * 3 = 20 + 21 = 41</span>