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3 years ago

-x+2y=6 and -x+8y=12 solve by elimination (help please)

Mathematics

1 answer:

Tcecarenko [31]3 years ago

4 0

Answer:

Step-by-step explanation:

-x+2y=6

-x+8y=12

_________

-6y = -6 ( subtracting 2 equations)

y=1

x=-4

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1. What is the sum? 7/2+(-3/5) 4I3 10 21 10 10

Alika [10]

Answer:

29/10

Step-by-step explanation:

7/2+(-3/5)

7/2-3/5

35/10-6/10

29/10

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2 years ago

What is the side length of the eectagkes

dedylja [7]

1. 5 in and 1/3 in: Area = 5/3 in^2

2. 5 in and 4/3 in: Area= 20/3 in^2

3. 5/2 in and 4/3 in: Area=10/3 in^2

4. 7/6 in and 6/7 in: Area = 1 in^2

Step-by-step explanation:

1. 5 in and 1/3 in

Here,

$Let\\l=5\\w=\frac{1}{3}\\Area=l*w\\=5*\frac{1}{3}\\=\frac{5}{3}\ in^2$

2. 5 in and 4/3 in

Here,

$l= 5\ in\\w=\frac{4}{3}\ in\\Area=l*w\\=5*\frac{4}{3}\\=\frac{20}{3}\ in^2$

3. 5/2 in and 4/3 in

$let\\l=\frac{5}{2}\\w=\frac{4}{3}\\Area= \frac{5}{2}*\frac{4}{3}\\=\frac{20}{6}=\frac{10}{3}\ in^2$

4. 7/6 in and 6/7 in

Let

$l=\frac{6}{7}\\w=\frac{7}{6}\\Area=l*w\\=\frac{6}{7}*\frac{7}{6}\\=1\ in^2$

Hence,

1. 5 in and 1/3 in: Area = 5/3 in^2

2. 5 in and 4/3 in: Area= 20/3 in^2

3. 5/2 in and 4/3 in: Area=10/3 in^2

4. 7/6 in and 6/7 in: Area = 1 in^2

Keywords: Rectangle, Area

Learn more about rectangles at:

#LearnwithBrainly

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4 years ago

a bacteria culture is grown with a population of 45 million cells and kept under observation. the cell population is found to do

lawyer [7]

The answer to this would simply be 45x4

5 0

4 years ago

Write an expression showing the sum of a number h and a number w minus 11.

uysha [10]

Answer: The required expression would be

h + w - 11

Step-by-step explanation:

Here the given phrase,

The sum of a number h and a number w minus 11.

Since, Sum of h and w = h plus w = h + w

Also, the sign of minus is '-'

Therefore,

The sum of h and w minus 11 = h + w - 11

Which would be the required expression.

4 0

3 years ago

James scored a total of 60 points during 2 games of basketball. He scored 3 times as many points in the second game what were

Arturiano [62]

Answer:

15 and 45

Step-by-step explanation:

15*3=45

15+45=60

hope this helps!

7 0

3 years ago