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3 years ago

Consider the following pair of equations:

1 answer:

6 0

So the equations are:

y= 3x + 3

y= x- 1

By the transitive property, we know x-1= 3x+3 (Transitive property means if a= b, and b= c, shouldn't a = c if they both equal b?)

so, x- 1= 3x + 3. Now we isolate x and solve:
+1 +1
x= 3x+ 4
-x -x

0 = 2x+ 4
-4 -4

-4 = 2x
/2 /2

x= -2

Now, you can plug that back in to find y:

y = x- 1
y= -2 -1
y= -3

Then plug them both in to make sure it is correct. :o)

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Plz help! anybody. i'll mark brainliest 20 points!!!!

lisabon 2012 [21]

(1) Snow fall in last week = $3 \frac{1}{2}$ inches

Snow fall in today= $5 \frac{3}{4}$ inches

Let us first change mixed fraction to improper fraction.

$\begin{aligned}&3 \frac{1}{2}=\frac{7}{2}\\&5 \frac{3}{4}=\frac{23}{4}\end{aligned}$

Now, make the denominators same.

$3 \frac{1}{2}=\frac{7}{2}=\frac{7 \times 2}{2 \times 2}=\frac{14}{4}$ , $5 \frac{3}{4}=\frac{23}{4}$

Now, find the difference between 14/4 and 23/4.

$\frac{23}{4}-\frac{14}{4}=\frac{9}{4}=2 \frac{1}{4}$

So, compared to last week $2 \frac{1}{4}$ more inches of snow fell today.

(2) Given three times a number, minus nine, equals six times six, divided by four.

Let a number be X.

3X – 9 = 6 × 6/4

(3) To solve the equation:

3X – 9 = 6 × 6/4

3X – 9 = 36/4

3X – 9 = 9

3X = 18

X = 6

5 0

3 years ago

I would like to say that I am one of the females in the world who are in love with the idea of love. Especially Ryan reynolds

Gwar [14]

Answer:

That's cool.

Step-by-step explanation:

3 0

2 years ago

16 is 20% of what number?

pychu [463]

Your answer will be 80

3 0

3 years ago

Read 2 more answers

How the answer would end in 15.81

Vladimir79 [104]

The estimated square root of 250 is 15.8113883 or 15.81

5 0

3 years ago

The mass of earth is approximately 5.97 x 10^24 kilograms. The mass of Venus is approximately 4,870,000,000,000,000,000,000,000

Stels [109]

Answer:

1.10×10^24 kg

Step-by-step explanation:

(5.97×10^24 kg) - (4.87×10^24 kg) = (5.97 -4.87)×10^24 kg = 1.10×10^24 kg

___

4,870,000,000,000,000,000,000,000 = 4.87×1,000,000,000,000,000,000,000,000 = 4.87×10^24

For addition and subtraction, the numbers need to be adjusted so they are multiplied by the same power of 10. Here, the most significant digits of each of the numbers are in locations that have the same place value, so that is not difficult.

3 0

3 years ago