If 8 km = 5 miles, convert 960 km into miles.
2 answers:
Since 8 km = 5 miles, we need to convert 960 km into miles.
Here's how to work it out:
8 km = 5 miles
= 120
Why I divided 960 km by 8 km? Remember that 8 km = 5 miles. Divide 960 km by 8 km to find how many units of "5 miles" can be found in 960 km. There are 120 units of "5 miles" in 960 km.
Let's continue working it out:
120 x 5 miles = 600 miles.
Why I multiplied 5 by 120? Since we have to find how many miles are there in 960 km, and since there are 120 units of "5 miles" in 960 km, multiply 5 by 120 to find how many miles are in 960 km.
The answer 600 miles.
I hope this helps! I tried to break it down into easy terms :)
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Keywords:
<em>System of equations, variables, hardcover version, paperback version, books </em>
For this case we must construct a system of two equations with two variables. Let "h" be the number of hardcover version books, and let "p" be the number of paperback version books. If the hardcover version of a book weighs 7 ounces and the paperback version weighs 5 ounces, to reach a total of 249 ounces we have:
(1)
On the other hand, if there are Forty-five copies of the book then:
(2)
If from (2) we clear the number of books paperback version we have:
As each paperback version book weighs 5 ounces, to obtain the total weight of the paperback version books, represented by "x" in the table shown, we multiply
So,
Answer:
Option D
Answer:
No
Step-by-step explanation:
(x,y)=(4,-1)
73x+5y=7
73*4+5*(-1)=287
____________________________
175x−3y=17
175*4-3*(-1)=703