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Anestetic [448]
3 years ago
12

Please Help, I need to get a good grade!

Mathematics
1 answer:
tiny-mole [99]3 years ago
7 0
First I subtracted all the terms in the second equation from the terms in the first one, eliminating all the x terms. that made finding y easy. Then I substituted the value for y into one of the equations to find x :)

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Can anyone help? 25 points
damaskus [11]

Answer:

w>-5/12

Step-by-step explanation:

w > 1/3 - 3/4 = 4/ 12 - 9/ 12

w> -5/12

7 0
3 years ago
Read 2 more answers
Please hurry. Have to submit this soon.
AlekseyPX
In 1 hour, Antoine travels 1.75 mi by dividing 5.25 by 3. So, after lunch, he hiked 4 hours. 1.75 times 2 is 3.5 mi every hour after lunch. So, 3.5 times 4 is 14 mi. + 5.25 is 19.25 mi., or 19 1/4 miles.
8 0
3 years ago
Plz help me ill give brainly
Dafna11 [192]

Answer:

3.6 divided by 3 = 1.2 so 1.2 yards of material can be used on each skirt.

Step-by-step explanation:

4 0
3 years ago
Which of the following is an example of the difference of two squares
True [87]

Complete Question: Which of the following is an example of the difference of two​ squares?

A x² − 9

B x³ − 9

C (x + 9)²

D (x − 9)²

Answer:

A. x^2 - 9.

Step-by-step explanation:

An easy way to spot an expression that is a difference of two squares is to note that the first term and the second term in the expression are both perfect squares. Both terms usually have the negative sign between them.

Thus, difference of two squares takes the following form: a^2 - b^2 = (a + b)(a - b).

a² and b² are perfect squares. Expanding (a + b)(a - b) will give us a^2 - b^2.

Therefore, an example of the difference of two squares, from the given options, is x^2 - 9.

x^2 - 9 can be factorised as x^2 - 3^2 = (x + 3)(x - 3).

8 0
3 years ago
The length of the room is 3 times the width and the total area of the room is 27 square meters. What is the length of the living
Vika [28.1K]
l=3w\\
lw=27\\\\
3w\cdot w=27\\
3w^2=27\\
w^2=9\\
w=3 \vee w=-3\\
-3\not\in\mathbb{N}\\\\
l=3\cdot3\\
l=9

7 0
3 years ago
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