Now, let us try if you can identify the past and past perfect tense in the guven selection above. Using the table below, list at least 5 sentences in the past tense and past perfect tense.

Past simple tense: I was not able to join the celebration last night, Alex.

The activity was really fun.

What happened in the ball last night?

There were a lot of surprises.

A Junior High student presented some magic tricks.

Past perfect tense: I had committed to help grandfather repair his cabinet before you called.

But, if you had joined us, you would have met new friends in our Junior Acquaintance Ball.

Explanation:

When we want to talk about events that took place in the past, we need to use the past tense. Depending on the nature of the event, we can use one out of four types of the past tense:

The past simple tense is used for completed actions that took place at a specific point in the past. I pointed out five sentences that contain it, but as you can see, there's even more of them in the text you were given.

The past perfect tense is used to talk about actions that were completed before another point in the past. It consists of the auxiliary verb had and the past participle of the main verb. There are only two sentences that contain this tense in the given text.

You can see more information about these tenses in the images attached below:

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.