Enter your answer and show all the steps that you use to solve this problem in the space provided.
Solve the inequality and describe the solution set.
y
–
6
≥
12
To solve the inequality, we can add 6 to both sides:
y - 6 ≥ 12 + 6
y - 6 ≥ 18
Then, we add 6 to both sides again to isolate y:
y ≥ 18 + 6
y ≥ 24
So the solution set to this inequality is all values of y that are greater than or equal to 24. We can express this solution set using interval notation as [24, ∞).
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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Gabriella went skiing. She paid $35 to rent skis and $15 an hour to ski. If she paid a total of $95, how many hours did she ski? Write an algebraic equation to represent the situation and solve it.
Let x be the number of hours Gabriella skied. Then we can write an algebraic equation to represent the situation:
35 + 15x = 95
To solve for x, we can first subtract 35 from both sides:
15x = 60
Then, we can divide both sides by 15:
x = 4
So Gabriella skied for 4 hours.
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Solve the equation.
c
4
−
5
=
4
To solve the equation, we can first add 5 to both sides to isolate the variable term:
c/4 = 9
Then, we can multiply both sides by 4:
c = 36
So the solution to the equation is c = 36.
What is the major cause of the greenhouse effect?(1 point)
The major cause of the greenhouse effect is the increased concentration of greenhouse gases, such as carbon dioxide, in the Earth's atmosphere, which trap heat from the sun and cause warming of the Earth's surface.
What is the major cause of the greenhouse effect?(1 point)
Responses
soot from coal plants in the atmosphere
soot from coal plants in the atmosphere
carbon dioxide in the water
carbon dioxide in the water
soot from coal plants in the water
soot from coal plants in the water
carbon dioxide in the atmosphere
carbon dioxide in the atmosphere
carbon dioxide in the atmosphere.
Which is an effect of global warming?(1 point)
Responses
rising sea level over a period of time
rising sea level over a period of time
increasing greenhouse gas concentration in air
increasing greenhouse gas concentration in air
changing seasons every year
changing seasons every year
increasing carbon dioxide in the atmosphere
rising sea level over a period of time.
Which form of energy can be connected closely to climate change?(1 point)
Responses
solar
solar
wind
wind
hydroelectric
hydroelectric
coal
coal.
Which choice would have the smallest impact on climate change when purchasing apples at the store?(1 point)
Responses
buying apples that have no packaging
buying apples that have no packaging
buying apples that are locally grown
buying apples that are locally grown
buying apples in large quantities to reduce trips to the store
buying apples in large quantities to reduce trips to the store
buying apples from farms that plan to use organic practices
buying apples that have no packaging.
Which orders the activities from the greatest to least impact to reduce consumption of fossil fuels?(1 point)
Responses
carpool to work, walk to work, drive an electric car to work
carpool to work, walk to work, drive an electric car to work
drive alone to work, drive an electric car to work, carpool to work
drive alone to work, drive an electric car to work, carpool to work
drive an electric car to work, walk to work, carpool to work
drive an electric car to work, walk to work, carpool to work
walk to work, carpool to work, drive alone to work