2 years ago

A student is trying to solve the set of two equations given below:

1 answer:

7 0

If you would like to eliminate the z-term, you can do this using the following steps:

x + z = 6 /*(-2)
3x + 2z = 1
_____________
-2x -2z = -12
3x + 2z = 1
_____________
-2x + 3x = -12 + 1
x = -11

The correct result would be x + z = 6 /*(-2).

You might be interested in

What is the solution set to, "Katie wants to collect over 100 seashells. She already has 34 seashells in her collection. Each da

Anastaziya [24]

Answer:

Katie will collect more than 100 seashells in 5 and a half days.

Step-by-step explanation:

Katie already has 34 seashells in her collection.

Each day, she finds 12 more seashells on the beach.

Let x be the number of days Katie is collecting seashells.

In x days, she will collect 12x seashells.

In total, she will collect $34+12x$ seashells.

Katie wants to collect over 100 seashells, so

$34+12x> 100$

Solve this inequality. Subtract 34:

$34+12x-34>100-34\\ \\12x>66\\ \\2x>11\\ \\x>5 \dfrac{1}{2}$

Katie will collect more than 100 seashells in 5 and a half days.

3 0

3 years ago

The sum of the squares of two nonnegative numbers is 327. The product of the two numbers is 101. What is the sum of the two numb

Verizon [17]

A) x² + y² = 327
B) x * y = 101
Solving equation B for y²
B) y² = 10,201 / x²
Substituting this into equation A)
x² + 10,201 / x² = 327
x^4 + 10,201 = 327x²
x^4 -327x² + 10,201 = 0
Using the quartic equation calculator: http://www.1728.org/quartic.htm
x1 = 17.090169943749476
x2 = 5.909830056250525

x1 * x2 = 101
x1 + x2 = 23

8 0

2 years ago

If an angle measured between 0 degrees and 90 degrees, how is it classified

faust18 [17]

It is called an acute triangle.

7 0

2 years ago

Read 2 more answers

Elle went to pet smart and bought 4 gold fish and three turtles for $28. later the day, warren went to Petsmart and bought six g

AlekseyPX

It would cost 40$ because you are doing 10 times 4

8 0