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zmey [24]
3 years ago
11

Estimate and calculate 2.7 x (-3.2)

Mathematics
1 answer:
irga5000 [103]3 years ago
3 0

Answer:

- 216/25

8 16/25

8.64

Step-by-step explanation:

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A town is fencing a rectangular field that is 200 feet long and 150 feet wide. At $10 per foot, how much will it cost to fence t
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The length of a rectangle is 5 less than 3 times its width. The perimeter is
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Answer:

The length is 28 and the width is 11

Step-by-step explanation:

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Since the length is 5 less than 3 times the width, it's going to be 3x - 5

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Solve the system using elimination.
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Answer:

After simplifying we get (x,y) as (1,3).

Step-by-step explanation:

Given:

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We need to use elimination method to solve the and simplify the equations.

Solution;

Let x+7y=22 ⇒ equation 1

Also Let 4x-7y=-17⇒ equation 2

Now by solving the equation we get;

first we will Add equation 2 from equation 1 we get;

(x+7y)+(4x-7y)=22+(-17)\\\\x+7y+4x-7y=22-17\\\\5x=5

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\frac{5x}{5}=\frac{5}{5}\\\\x=1

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x+7y=22\\\\1+7y=22

subtracting both side by 1 using subtraction property of equality we get;

1+7y-1=22-1\\\\7y=21

Now Dividing  both side by 7 using division property of equality we get;

\frac{7y}{7}=\frac{21}{7}\\\\y=3

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