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balandron [24]
3 years ago
13

How would you change x + 3y = 18 -3x - 12y = -75 to eliminate x

Mathematics
1 answer:
loris [4]3 years ago
5 0

Answer:

Multiply the equation  by 3 making positive 3X which will cancel out with negative 3X

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Line s represented by the following equation x+y=2
DENIUS [597]

Answer:

Step-by-step explanation:

5 0
3 years ago
A square has a perimeter of 12 yd. What is the length of each side?
Lena [83]

Answer:

  • Length of side of square is 3 yd.

~

Step-by-step explanation:

Let the side of square be 's'. We know that Perimeter of square is <u>4 ×</u> <u>Side</u>.<em> </em>By substituting values in the formula we can find the required side.

~

:\implies \sf  4 × s=Perimeter \:  of \:  square

~

:\implies \sf  \:  \:  \: 4 × s = 12

~

:\implies \sf \:  \:  \:  s =  \dfrac{12}{4}

~

:\implies \bf \:  \:  \:  Side = 3 yd.

~

\therefore \: Length of side of square is <u>3</u><u> </u><u>yd</u>.

7 0
2 years ago
Hey I need a step by step of this!!! Or can you just explain to me how to figure it out step by step!! either is fine
Umnica [9.8K]

Answer:

I believe the answer may be x= 24.5 I'm not certain though

Step-by-step explanation:

The angles inside the triangle must all add up to 180 so we can subtract 80 from 180 to get 98. Now I'm assuming the two undefined angles are equal because of the two angle bisectors that create the second triangle. If I'm correct in assuming that them we can divided 98 by 2 to get 49 which would be the measurement of both bottom angles. Since there's a line bisecting both of them we would then cut that number in half to get 24.5. I hope this helped, I'm not fully certain of this answer though.

4 0
3 years ago
Diana got 0.85 of the questions correct on her assessment. What fraction
mars1129 [50]

Answer:

85100

Step-by-step explanation:

the decimal 0.85 can be converted to the fraction 85100 , by defintion of a decmial.

3 0
3 years ago
Sally ordered her groceries online and she accidentally ordered 120 pounds of flour! Sally only uses 4 pounds of flour every mon
Olin [163]

Answer:

480 is answer right yes

3 0
3 years ago
Read 2 more answers
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