A math teacher drove by a playground that was full of boys and dogs. The teacher happened to notice that there was a total of 40 heads and 100 feet. How many boys and how many dogs were there?
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her total cost is $27.40.
What is multiplication?
In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Here, we have,
Amelia bought roast beef for $6.85 per pound.
Amelia bought 4 pounds of roast beef.
total cost = $6.85 * 4
=$27.40
hence, her total cost is $27.40.
To learn more on multiplication click:
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b = Princess' weight
c = Luna's weight
a : b = 4 : 5
b : c = 6 : 7
at this point, we have to change the 2 ratios (a : b and b : c) into one ratio (a : b : c)
to do that, we have to change the ratio number so the number b in both ratio is the same
a : b = 4 : 5 = 24 : 30
b : c = 6 : 7 = 30 : 35
From that we can conclude that
a : b : c = 24 : 30 : 35
Since we're looking for the ratio of Sock's weight to Luna's weight, it will be
a : c = 24 : 35
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example
x^2=
so x^0=
so
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Number round to the nearest thousandth is 6.458.
What is Algebra?
Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
We are given that;
Number = 5.7935
Now,
To round 6.4578 to the nearest thousandth, you look at the digit 7 in the ten-thousandth place. Since 7 is more than 5, you round up by adding 1 to the digit 8 in the thousandth place and dropping the digit 7.
Therefore, by algebra the answer will be 6.458.
More about the Algebra link is given below.
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The thousandths place is where the 3 is. If the number to the right of it is 5 or bigger, than you can round up. If not, then you round down.