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1 year ago

Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems

Mathematics

2 answers:

Mice21 [21]1 year ago

4 0

Answer:

not what he said

Step-by-step explanation:

Romashka [77]1 year ago

3 0

Answer:

Cross multiplying fractions helps us to see if numbers are equal, and if not, which is bigger and which is smaller. But that is not its only use. Cross multiplying fractions can help us to solve for unknown variables in fractions.

Step-by-step explanation:

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If the club is sending 3 members to a convention, how many different groups of 3 members are possible?

Natasha2012 [34]

There are 120 different possible groups.
(10 * 9 * 8)/(3 * 2 * 1) + 120

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3 years ago

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UNO [17]

Answer:

2 solutions

Step-by-step explanation:

Given the expression

2m/2m+3 - 2m/2m-3 = 1

Find the LCM of the expression at the left hand side:

2m(2m-3)-2m(2m+3)/(2m+3)(2m-3) = 1

open the bracket

4m²-6m-4m²-6m/(4m²-9) = 1

Cross multiply

4m²-6m-4m²-6m = 4m² - 9

-12m = 4m² - 9

4m² - 9+12m = 0

4m² +12m-9 = 0

Since the resulting equation is a quadratic equation, it will have 2 solutions since the degree of the equation is 2

8 0

2 years ago

Dmitri buys 23 pound of mixed nuts, 12 pound of chocolate

Ainat [17]

Answer: take 23 + 12 + 114 once u get that then u will want ti times the price

Step-by-step explanation:

8 0

3 years ago

F(x)=(1/4)^x what is the y-intercept common ratio

Vesna [10]

See attached graph.

The y-intercept is (0, 1), since the line is at that point when it intersects with the y-axis.

The common ratio is 1/4, since the y value multiplies by 1/4 for each unit on the x-axis.

6 0

3 years ago

What is the smallest fraction to the longest fraction? 9/12,2/3,1/6,1/2,5/9,3/4,17/18.

Oduvanchick [21]

Answer:

1/6, 1/2, 5/9, 9/12, 2/3, 3/4, 17/18

Step-by-step explanation:

9/12 and 3/4 are equal

5 0

2 years ago