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dybincka [34]
3 years ago
10

Place the four steps of the elimination method in the proper order

Mathematics
1 answer:
Reptile [31]3 years ago
8 0
Find a variable with equal or opposite coefficients, if equal then subtract the equations but if opposite then add, solve one variable equation left, and then substitute known variable into other equation and solve
You might be interested in
The triangles below are similar. What is the length of ? A. 17 cm C. 19 cm B. 18 cm D. 20 cm
denis-greek [22]

Answer:

B. 18 cm.

Step-by-step explanation:

Because they are similar, we can say that segment AC corresponds to segment DF, and segment AB corresponds to segment ED. So, we can set up a proportion.

\frac{16}{24} =\frac{12}{x}

\frac{2}{3} =\frac{12}{x}

2 * x = 12 * 3

2x = 36

x = 18

So, the length of ED is B. 18 cm.

Hope this helps!

4 0
3 years ago
NEED HELP ON THIS QUESTION
Tom [10]
Answer: 288

Workings : 16 x 12 =192 (for bottom rectangle bit) 12x 16 =192 then divide 192 by 2 =96 add them together and its 288
3 0
3 years ago
Someone plz explain!
ryzh [129]

Answer:

18° and 72°

Step-by-step explanation:

Complimentary angles form 90°

We have an angle (x) 4 times larger than the other (y).

Well actually, a system of equations isn't required, so forget about x and y, just divide 90 by 5. This gives you 18, one of the angle's measurements is 18°. Multiply 18 by 4 and get 72. The other angle's measurement is 72°.

7 0
3 years ago
The difference of seven halves and six quarters is multiplied by negative two fifths. Find this rational number.
malfutka [58]
First, the difference is 7/2 - 6/4 = 14/4 - 6/4 = 8/4

Now multiply it: 8/4 x (-2/5) = -16/20 = -4/5
5 0
3 years ago
Ratio of 9 maple trees to 5 oak trees <br><br> how did they come up with 36 maple trees
miss Akunina [59]
(9×5) - 9 = 36 Maple trees
5 0
3 years ago
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