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monitta
3 years ago
6

Simplify (x-y 1)-(x y-1)

Mathematics
2 answers:
Harman [31]3 years ago
6 0
(x - y + 1) - (x + y - 1) = x - y + 1 - x - y + 1 = -2y + 2
romanna [79]3 years ago
4 0

Answer: the correct answer is -2y+2

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Sam wants to fence his rectangular garden plot along its length on the front side. The perimeter of the plot is 24 meters, and i
Black_prince [1.1K]

Question is Incomplete;Complete question is given below;

Sam wants to fence his rectangular garden plot along its length on the front side. The perimeter of the plot is 24 meters, and its length is 3 times its width. If x is the length and y is the width of the plot, set the equations of the system. Solve and determine the values of x and y. If the cost of fencing is $25 per meter, how much does Sam need to spend on fencing?

Answer:

Length of the plot (x) is 9 meter and width of the plot (y) is 3 meter.

Sam need to spend $225 on fencing.

Step-by-step explanation:

Given;

Perimeter of the plot =24 m

Length of the plot is denoted 'x'

Width of the plot is denoted by 'y'

Cost of Fencing = $25 per meter.

We need to find the the values of x and y.

Also we need to find how much does Sam need to spend on fencing.

Solution:

Now given that;

length is 3 times its width.

so we get;

x=3y

Now we know that;

Perimeter of the rectangle is equal to 2 times sum of its length and width.

framing in equation form we get;

24=2(x+y)

But x=3y

so we get;

24 =2(3y+y)\\\\24=2(4y)\\\\24=8y

Dividing both side by 8 we get;

\frac{24}{8}=\frac{8y}{8}\\\\y =3\ m

Now width of the plot = 3 meter

Length of the plot x=3y=3\times3= 9\ m

Hence Length of the plot (x) is 9 meter and width of the plot (y) is 3 meter.

Now given that;

Sam wants to fence his rectangular garden plot along its length on the front side.

So we can say that;

Length to be fenced = 9 m

Cost of fencing = $25/meter

Cost of fencing the garden = 9\times 25= \$225

Hence Sam need to spend $225 on fencing.

3 0
4 years ago
one of the angles of a right triangle measures 26 degrees. what are the degree measures of the other two angles?
vfiekz [6]

Answer:

64 degrees

Step-by-step explanation:

The right angle must be 90 degrees

The total degrees of a triangle must be 180

90+26=116

180-116=64

6 0
3 years ago
1. Calculate the rate of change for the following data:
expeople1 [14]

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

• constant of proportionality

however, is the same cat wearing different costumes.

well, to get it all we need is two points, say hmmm let's use (-1 , -7) and (7 , 25)

(\stackrel{x_1}{-1}~,~\stackrel{y_1}{-7})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{25}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{25}-\stackrel{y1}{(-7)}}}{\underset{run} {\underset{x_2}{7}-\underset{x_1}{(-1)}}}\implies \cfrac{25+7}{7+1}\implies \cfrac{32}{8}\implies 4

4 0
3 years ago
HELP NEEDED! 15 POINTS!<br> Given that m
S_A_V [24]

Answer:

140°

Step-by-step explanation:

arc ER = 2×70° = 140°

7 0
3 years ago
Find the missing exponent: 5^11/5?=5^4
Sergio [31]
The missing exponent is 5^7 your welcome
6 0
3 years ago
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