90*2= 180
72/2=36
180+36= 216
The train traveled 216 miles.
<span>Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent. Use ratio reasoning to convert measurement units; manipulate and transform units appropriately when multiplying or dividing quantities.
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Answer: (13x+8)(13x-8) is the answer
Answer:
17x and 3x
Step-by-step explanation:
like terms are terms that have the same variables and powers. The coefficients do not need to match. Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers. The order of the variables does not matter unless there is a power.
Answer:
The length of this rectangle is 8m.
Step-by-step explanation:
The problem states that the perimeter of a rectangle is twice the sum of its length and it’s width. So
The problem also states that the perimeter is 22 meters. So:
.
Also, it states that I is the length and it is 2 meters more then twice it’s width. So
What’s its length?
The width is 3m. The length is in function of the width, so:
The length of this rectangle is 8m.
