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3 years ago

In testing the effectiveness of an energy drink on the performance of athletes, 50 athletes were given water and 50 athletes

Mathematics

1 answer:

Aneli [31]3 years ago

3 0

The correct answer is C; Dependent variable.

Further explanation:

Researchers are very interested in the dependent variable. This variable is what is being tested and measured during the research in progress. In this case, it is the new energy drink.

The researchers are looking for an effect to occur while changing the independent variable of the case study. There are three main different types of variables used in research studies, they are;

Independent
Dependent
Control

With the athletes doing exercises after consuming the test product, they are seeing if the product does give more energy than if they hadn't of consumed the energy drink.

Learn more about dependent variables at brainly.com/question/383055

#LearnwithBrainly

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You plan on purchasing a car in the next year. The car that you are interested in lists for $23,000 after taxes, license, and do

oksano4ka [1.4K]

Answer:

c. 8 months.

Step-by-step explanation:

First off let's get the current total of how much we have saved.

2/3 of $23,000 = 15,333.33.

Now we need to get our total salary to calculate for our Social Security and Medicare.

Total Salary : $1312.00 x 2 = $2,624.00

Social Security : 6.2% or 0.062 x 2,624 = $162.69

Medicare : 1.45 or 0.0145 x 2,624 = $38.05

Now that we have our Social Security and Medicare, we can then solve for our taxes.

Taxes: $53 + $101.35 = 154.35 x 2 = $308.7

Now we can add our monthly expenses to the other expenses.

Monthly Expenses : $1,150.12

1,150.12 + 162.69 + 38.05 + 308.7

= $1659.56 Total Expenses.

Now that we have our total expenses we simply subtract it to our monthly salary.

2624.00-1659.56

= $964.44 Extra Money Monthly

Now we proceed to solve for how much more we need to make the total payment.

23000 - 15,333.33

= 7666.67

Now that we have out total balance, we just need to divide the balance to our extra money monthly.

7666.67 / 964.44

= 7.949 Months or 8 Months

6 0

3 years ago

A concession stand charges $2.50 for a bag of popcorn. The stand has already sold 30 bags of popcorn. How many more bags x of po

vesna_86 [32]

Answer:

The concession stands needs to sell 14 or more bags.

Step-by-step explanation:

Given that:

Cost per bag of popcorn = $2.50

Number of bags already sold = 30

Cost of 30 bags = 30*2.50 = $75

Bags needs to be sold to make $110 = x

2.50x + 75 ≥ 110

2.50x ≥ 110-75

2.50x ≥ 35

Dividing both sides by 2.50

$\frac{2.50x}{2.50}\geq \frac{35}{2.50}\\x\geq 14$

Hence,

The concession stands needs to sell 14 or more bags.

3 0

3 years ago

HELP... Question Concerning MATH Will give 20 Points!!

kramer

sorry for taking your points

4 0

3 years ago

Read 2 more answers

Factor the expression. 15n−18 Enter your answers in the boxes. ( )

Irina18 [472]

Theyre both divisible by 3
15n-18= 3(5n - 6)

5 0

3 years ago

Craig saved $10,950 in a year. He saved $75 more than what he saved the previous

Dmitry [639]

Answer: $10,875

Step 1: Subtract.

10,950 - 75 = 10,875.

Step 2: Add a dollar sign.

$10,875

Hope this helps!

7 0

2 years ago

Read 2 more answers