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Olegator [25]
3 years ago
14

Someone please help!

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0
Multiply the top equation by 6 and the bottom equation by 7. You will cancel x first by doing this and solve for y. You should get y=-1.
Substitute in y for either original equation.
You should get x=1.
Solution is (1,-1).
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Someone please help me!
Vlad1618 [11]

Answer:

A. x \leq -16  

B. b > 11

C. c \leq -13

D. x \geq -9

Step-by-step explanation:

<u>Given the following algebraic expression;</u>

A. \frac {3x}{4} \leq 12

We would simplify the equation by multiplying all through by 4;

4 * \frac {-3x}{4} \leq 12 * 4

-3x \leq 48

Divide both sides by -3;

x \leq -16

B. 5b - 28 > 27

Rearranging the equation, we have;

5b > 27 + 28

5b > 55

Divide both sides by 5

b > 11

C. 13c \leq -169

Divide both sides by 13

c \leq -13

D. 3x - 7 \geq 4x + 2

Collecting like terms, we have;

3x - 4x \geq 2 + 7

-x \geq 9

Divide both sides by -1

x \geq -9

8 0
3 years ago
Question 4<br> What is the value of x? n10 / n12 = n*<br> need answer will mark brainlist
Crazy boy [7]

Answer:

Step-by-step explanation:

\frac{n^{10}}{n^{12}}=n^x\\n^{10-12}=n^x\\n^{-2}=n^x\\x=-2

8 0
3 years ago
Find the distance between the points given. (-3, -6) and (3, 2)
vlada-n [284]

Answer:

10 units

Step-by-step explanation:

Moving from (-3, -6) to (3, 2), x increases by 6.  Draw a triangle and use this 6 as the length of the base.  y increases by 8.  Label the height of the triangle with this 8.  Then find the hypotenuse (which is also the desired distance) by using the Pythagorean Theorem:

6^2 + 8^2 = d^2, where d is that distance:

36 + 64 = 100 = d^2, and so d = 10.  The distance in question is 10 units.

5 0
3 years ago
A fish-tank has a length of 45 centimeters, a width of 25 centimeters and a depth of 10 centimeters.
kompoz [17]

Answer:

11250 cm^3

Step-by-step explanation:

45cm × 25cm × 10cm =11250cm

7 0
2 years ago
Shane measured 457 ml of water in a beaker. olga measured 3 times as much water. how much water did they measure altogether
katrin2010 [14]
457+(457 x 3) = 457+1371
                         = 1828 ml
8 0
3 years ago
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