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3 years ago

Can someone explain the elimination method to me

Mathematics

2 answers:

kirza4 [7]3 years ago

8 0

Sorry I dont know that method

aalyn [17]3 years ago

5 0

Eliminate opposite numbers. Then solve!! Hope this helped!!

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A forest ranger can see for a distance of 12 miles from a firetower.How many square miles can he observe?

mr_godi [17]

I think it is 12x12 = 144

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3 years ago

What is the answer to question 4 written as an ordered pair?

Mkey [24]

GOD IS GREAT SPREAD THE WORD

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3 years ago

Whats the answer in these boxexs

svetoff [14.1K]

Answer: 17 nickels, 8 dimes

Step-by-step explanation:

Since we are given system of equations, we can use elimination method to find n or d. First, let's eliminate n. To do so, we need to make sure they are equal to each other. Then, we would have to multilpy the second equaiton by 0.05.

0.05N+0.1D=1.65

0.05N+0.05D=1.25

Now, we can subtract the 2 equations.

0.05D=0.4

D=8

Now that we know the number of dimes, we can plug it into any of the equations to find nickels.

N+8=25

N=17

There are 17 nickels and 8 dimes.

5 0

3 years ago

Cheryl and rodney are mixing yellow and blue paint to make green paint. The table shows how much of each color they use. Whose g

Tomtit [17]

The amount of blue color in the green paint is an illustration of ratios and proportions.

Cheryl's green paint has more blue color

The proportion of blue color is calculated as:

$\mathbf{Proportion = \frac{Blue}{Blue+ Yellow}}$

So, we have:

$\mathbf{Cheryl= \frac{16}{16+ 24}}$

$\mathbf{Cheryl= \frac{16}{40}}$

$\mathbf{Cheryl= 0.40}$

Express as percentage

$\mathbf{Cheryl= 40\%}$

$\mathbf{Rodney= \frac{6}{6+ 10}}$

$\mathbf{Rodney= \frac{6}{16}}$

$\mathbf{Rodney= 0.375}$

Express as percentage

$\mathbf{Rodney= 37.5\%}$

By comparison: 40% >37.5%

Hence, Cheryl's green paint has more blue color