0
What else can I help you with?
What is the correct term for cross multiplication?
Cross multiplication IS the correct term!
Can a proportion be equal if the cross products are not equal?
No. A cross product is just a way of simplifying a proportion. If the cross product aren't equal, it follows logically that the proportion isn't equal.
What is the proportion of 2 over 5 equals 7 over x?
Easy. Cross multiply to get 2x = 35. Then, divide by two to get 35/2.
Who invented cross multiplication?
Maths!
How can you tell if a proportion is false?
Multiply the cross products, and see if they are equal. If they are equal, the proportion is true. If they are unequal, the proportion is false.
What is 3 and two thirds and equals to j over 3?
j = 11. cross multiplication
What is the correct term for cross multiplication?
Cross multiplication IS the correct term!
Is three fourths more one half?
Yes it is. If you use cross multiplication, 3/4 equals 6, while 1/2 equals 4.
A statement that 2 ratios are equal?
A statement that two ratios are equal is called a proportion in math. An example of a proportion is 1/2 equals 2/4. In this proportion, if you cross multiply, you find that 4 x1 is equal to 2 x 2, which is a true statement or proportion.
Can a proportion be equal if the cross products are not equal?
No. A cross product is just a way of simplifying a proportion. If the cross product aren't equal, it follows logically that the proportion isn't equal.
How do you cross simplify?
Cross-simplification is a technique used to simplify the multiplication of fractions. It is possible when the fractions have common factors that can be divided out. For example the multiplication of the fractions 6/2 * 2/5 = (6*2)/(2*5). The 2's can be simplified out so that the multiplication is simply 6/1 * 1/5 = 6/5.
What is the proportion of 2 over 5 equals 7 over x?
Easy. Cross multiply to get 2x = 35. Then, divide by two to get 35/2.
What does Cross multiplication mean?
Cross multiplication is when you multiply the denominator of a fraction by the numerator of another fraction. Before you cross multiply you want to see if you can simply the fractions.
Are the cross products of a proportion equal?
Yes, here's how you can show it, for the equivalent proportions a/b & (n*a)/(n*b): a na -=-- b nb Cross multiply: a*n*b ? b*n*a. Because multiplication is commutative, the question mark is an equal sign.
Who invented cross multiplication?
Maths!
What happens to the cross products when the terms of a proportion are cross multiplied?
The cross product is created.
How do you divide fractions without reciprocals?
Using reciprocals, a/b divided by c/d is the same as a/b times d/c. If you multiply this, you get ad/bc.Without thinking about this as reciprocals, you can do this multiplication directly, cross-multiplication so to speak.
