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3 years ago

Check the consistency of 2x-3y=7 and x-2y+1=0

Mathematics

1 answer:

Furkat [3]3 years ago

3 0

Answer:

x = 17, y = 9

or as an ordered pair, (17, 9).

The equations are consistent.

Step-by-step explanation:

2x - 3y = 7

x - 2y = -1 Multiply this equation by -2:

-2x + 4y = 2 Add this to the first equation:

y = 9.

Plug y = 9 into the second equation:

x - 2*9 = -1

x = -1 + 18 = 17.

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Gelneren [198K]

3x3x3x3 = 81
x.x.x.x = x^4
2x2x2x2 = 16

B. 81x^4/16

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4 years ago

Uh help me I guess you don’t have to if you don’t want to though

ella [17]

Answer:

12cm³

Step-by-step explanation:

1/2x2x6x2=12cm³

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2 years ago

Read 2 more answers

Y=|x-5|+|x+5|. if x>5

maks197457 [2]

Answer: Y=|20|

Step-by-step explanation:

|5+5|+|5+5| =|20|

3 0

3 years ago

A chili recipe calls for 2 pounds of ground pork and 3.5 pounds of ground beef. The cost of ground beef per pound is $0.20 less

dmitriy555 [2]

Answer: $\$1.75\ \text{per pound}$

Step-by-step explanation:

Given

The recipe calls for 2 Pounds of ground pork and 3.5 pounds of ground beef

Suppose x is the cost of ground pork

So, the cost of ground beef is $2x-0.2$

The total cost of meat is $\$15.05$

The total cost can also be written as

$\Rightarrow 2\times x+3.5\times (2x-0.2)=15.05\\\Rightarrow 2x+7x-0.7=15.05\\\Rightarrow 9x=15.75\\\Rightarrow x=\frac{15.75}{9}=\$1.75\ \text{per pound}$

So, the cost of ground pork is $\$1.75\ \text{per pound}$

5 0

3 years ago

A rectangle’s area and perimeter have the same numerical value. The length of the rectangle is 12 units. What is the width of th

Alex_Xolod [135]

Answer:

2.4

Step-by-step explanation:

12x2.4 = 28.8 (Area)

12+12+2.4+2.4 = 28.8 (Perimeter)

7 0

3 years ago