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Simplifying Algebraic Equations

I can't understand how to simplify the equations for example 7x to the 3rd power times 3y to the 2nd power. I am not sure how to simplify them. Can anyone please help me?

Subject:

Math

Topic:

Algebra

Posting ID:

2160

OTA ID:

102846

View Details $1.99 Download Add to Cart

Finding the intersection point between two hikers.

Ronald and Rosa are hiking. Ronald hikes 4 miles per hour. Rosa hikes 5 miles per hour. Ronald leaves camp at 8 am for the trail. Rosa leaves camp at 10 am for the trail. At what time will Rosa catch up to Ronald? Where will they be on the trail? How many miles will they be from camp? If they keep hiking for another 2 hours, how far ahead will Rosa be from Ronald?

Subject:

Math

Topic:

Algebra

Posting ID:

2184

OTA ID:

102833

View Details $1.99 Download Add to Cart

Determining the distance between two runners at a specific point in time.

Tony and Maria are training for a race by running all the way up and down a 700m long ski slope. They each run up the slope at different constant speeds. Coming down the slope, each runs at double his or her uphill speed. Maria reaches the top first, and immediately starts running back down, meeting Tony 70m from the top. When Maria reaches the bottom, how far behind is Tony? (A)140m (B)250m (C)280m (D)300m (E)320m

Subject:

Math

Topic:

Algebra

Posting ID:

2239

OTA ID:

102799

View Details $1.99 Download Add to Cart

Finding the solution, the intersection point, between two equations.

What is the value of y to make both solutions equal to each other? x-4=y 4x+2=y

Subject:

Math

Topic:

Algebra

Posting ID:

2241

OTA ID:

102846

View Details $1.99 Download Add to Cart

Finding the solution, the intersection point, between two equations.

What value of y will make both equations true? x-4=y 4x+2=y

Subject:

Math

Topic:

Algebra

Posting ID:

2242

OTA ID:

102833

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