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2 years ago

5

Boys and girls experience different changes to their bodies during adolescence. Please select the best answer from the choices p

rovided. T F.

1 answer:

TiliK225 [7]2 years ago

3 0

Answer:

True is the correct answer.

Explanation:

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Jennifer has $25. 00 and earns $0. 50 for every chore she completes. Amaya has $13. 00 and earns $2. 00 for every chore she comp

uranmaximum [27]

Taking into account the definition of equation, each girl must complete 8 chores to have the same amount of money.

<h3>Definition of equation</h3>

An equation is the equality existing between two algebraic expressions connected through the equals sign in which one or more unknown values, called unknowns, appear in addition to certain known data.

Each equation has two members, and these are separated by using the equal sign (=).

Each member is made up of terms.

The unknowns, that is, the values to be found, are represented by letters.

The equality between the two algebraic expressions is only verified or true for certain values of the unknown.

<h3>Amount of chores</h3>

To find the amount of chores in this case, in first place you know Jennifer has $25.00 and earns $0.50 for every chore she completes. The money that Jennifer saves is expressed as: 25 + 0.50x, being x the amount of chores that Jennifer sells.

On the other side, Amaya has $13.00 and earns $2.00 for every chore she completes. The money that Amaya saves is expressed as: 13 + 2x, being x the amount of chores that Amaya sells.

They have the same amount of money, then it is expressed by the equation:

25 + 0.50x= 13 + 2x

Taking into account that:

When a value you are adding is passed to another side of the equation, this value will be passed by subtracting.
If a value you are subtracting is passed to the other side of the equation, this value will be passed adding.
When a value you are dividing goes to another side of the equation, it will be multiplied.
If a value is multiplying it passes to the other side of the equation, then it will pass dividing.

The equation is solved as:

25 -13= 2x - 0.50x

12= 1.5x

12÷ 1.5= x

8=x

Finally, each girl must complete 8 chores to have the same amount of money.

Learn more about equations:

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2 years ago

A comet is a small object that also orbits the Sun. Comets have highly elliptical orbits. Based on Kepler’s laws, which statemen

Burka [1]

Answer:

D. Comets spend most of their time far from the Sun.

6 0

2 years ago

Can some one help me on this?

Aleksandr-060686 [28]

60because 5x60= 120. Multiple by 60
60minutes

3 0

3 years ago

Read 2 more answers

Can someone please help me with this question

a_sh-v [17]

The answer is C. (0,1). I believe.

4 0

2 years ago

Read 2 more answers

The professor informs the class that there will be a test next week. what is the probability that a randomly selected student st

marusya05 [52]

The probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade is: D. 0.80.

<h3>How to calculate the probability?</h3>

In this exercise, you're required to determine the probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade. Thus, we would apply Bayes's theorem.

Let S represent studied for.

Let B represent a score of B or higher grade

Therefore, we need to find P(S|B):

$S|B = \frac{B|S \times S}{B|S \times S\; +\; B|S' \times S'} \\\\S|B = \frac{0.55 \times 0.6}{0.55 \times 0.6 \;+ \;0.2 \times 0.4}\\\\S|B =\frac{0.33}{0.33 + 0.08} \\\\S|B =\frac{0.33}{0.41}$

S|B = 0.80.

Read more on probability here: brainly.com/question/25870256

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<u>Complete Question:</u>

At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.

5 0

2 years ago