Select one issue from the current issues in our society today brainly

a) using your equation from step 2d, estimate the gpa of a student who studies for 15 hours a week. justify your answer.

Pavlova-9 [17]

Using previously given equation, the estimate of the GPA of a student who studies for 15 hours a week is; 3.1

<h3>How to predict an equation?</h3>

The equation here is probably a "best fit" equation based upon given data which is GPA versus the number of hours of study per week.

Now, the equation of best fit is given as;

y = 0.149x + 0.89

Thus, if the number of study hours of interest is 15, then the GPA is;

GPA = 0.149(15) + 0.89

GPA = 3.1

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4 0

2 years ago

What day it the is the 4 of july :

mylen [45]

Answer:footwork’s

Explanation:

4 0

2 years ago

Read 2 more answers

A. imagine the white car in the left lane is moving more slowly than the surrounding traffic. how is this a violation of state u

11111nata11111 [884]

White car in the left lane moving more slowly than the surrounding traffic is a violation of state uniform traffic law as such cars are meant to be on the right lane.

<h3>What is Traffic law?</h3>

These are the rules which regulate the movement of vehicles and other road users to ensure safety.

The car being on the left lane will impact the behavior of the other drivers on the roadway by impeding traffic and makes everyone less safe. This is therefore why it is not accepted and a violation.

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6 0

2 years ago

How many grams of sodium chloride must be added to make 400. ml of a 0. 600 m sodium chloride

raketka [301]

Taking into account the definition of molarity, 14.028 grams of sodium chloride must be added to make 400 mL of a 0.600 M sodium chloride.

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{liter}$ .

<h3>Moles of sodium chloride</h3>

In this case, you know:

Molarity= 0.600 M
number of moles= ?
volume= 400 mL= 0.400 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

$0.600 M=\frac{number of moles}{0.400 L}$

Solving:

number of moles= 0.600 M× 0.400 L

number of moles= 0.24 moles

<h3>Mass of sodium chloride</h3>

Being the molar mass of sodium chloride 58.45 $\frac{g}{mole}$ , that is the amount of mass that a substance contains in one mole, the mass of sodium chloride can be calculated as:

0.24 moles×58.45 $\frac{g}{mole}$ = 14.028 grams

Finally, 14.028 grams of sodium chloride must be added to make 400 mL of a 0.600 M sodium chloride.

Learn more about molarity:

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5 0

2 years ago

A baker can bake 90 cookies in half an hour. If she takes one hour for lunch and two 15 minute breaks during the day, how many c

artcher [175]

Answer:

1,170 cookies

Explanation:

the baker works 8 hour, subtract 1 hour(lunch break) and 30 mins(both breaks) and you get 6 1/2 hours. then you multiply 6 by 180(90 cookies in 30 mins= 180 cookies an hour). once you multiply that you should get 1080, then you add 90 for the half hour.

8 0

2 years ago