Answer:
x=-2, y=-3. (-2, -3).
Step-by-step explanation:
-5x+4y=-2
2x-7y=17
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2(-5x+4y)=2(-2)
5(2x-7y)=5(17)
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-10x+8y=-4
10x-35y=85
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-27y=81
y=81/-27
y=-3
2x-7(-3)=17
2x+21=17
2x=17-21
2x=-4
x=-4/2
x=-2
Answer:
2
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Answer:
hii
Step-by-step explanation:
yes it represents school population
Hope this helps you
Thank you
Gudni8
Answer:
Step-by-step explanation:
Let be "x" the height inches (in the model) of a 84 foot building.
According to the information provided in the exercise, we know that the height of a two-story building is 21 feet and in the scale model its height is 3 inches.
Knowing this, we can set up the following proportion:
The final step is to solve for "x" in order to calculate its value. We get that this is:
Therefore, an 84 foot building will be 12 inches tall in the model.