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2 years ago

What is 2x - 3y is less than or equal to 12?Please I am desperate!!!!!!!!!!!!

Mathematics

2 answers:

Vlad1618 [11]2 years ago

4 0

2x-3y <= 12

Subtract 2x from both sides:

-3y <= 12 - 2x

Divide all terms by -3 ( when you divide an inequality by a negative value you must also reverse the inequality sign)

y >= -4 +2/3x or can be written as y >=2/3x -4

Nimfa-mama [501]2 years ago

3 0

Answer:

$2x - y \leqslant 12 \\ -3 y \leqslant - 2x + 12 \\ 3y \geqslant 2x - 12 \\ y \geqslant \frac{2}{3} x - 4$

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Length of movie projected at 24 frames per second:l=24f.solve for f

Dvinal [7]

L = 24f
l/24 = f

Hope this helps!

8 0

2 years ago

A company produces fruity drinks that contain a percentage of real fruit juice. Drink A contains 20% real fruit juice and Drink

Setler [38]

Answer:

There needs to be 300 liters of Drink A and 270 liters of Drink B

Step-by-step explanation:

Let a = the amount of Drink A and b = the amount of Drink B

Multiplying a number by 0.2 is the same as calculating 20% of it and same goes with 15% and 0.15. This makes our equation for the amount of fruit juice:

0.2a + 0.15b = 100.5

We know what the difference between a and b will be 30 liters so:

a - b = 30

Now we have our system of equations

To cancel out a, we can multiply the first equation by -5 so we will now have:

-a - 0.75b = -502.5

a - b = 30

Adding these two equations together, we get:

-1.75b = -472.5

Both sides are negative, so we can take the negative signs away.

1.75b = 472.5

Now divide both sides by 1.75

b = 270

Plugging 270 into b, we have:

a - b = 30

a - 270 = 30

Add 270 to both sides

a = 300

There needs to be 300 liters of Drink A and 270 liters of Drink B

7 0

2 years ago

Read 3 more answers

-5(6v-w-1) <br> Distributive prot

krok68 [10]

Answer:

-30v + 5w + 5

Step-by-step explanation:

-5(6v - w - 1) =

Multiply -5 by each term inside the parentheses.

= -5 * 6v - (-5) * w - (-5) * (-1)

= -30v + 5w + 5

5 0

2 years ago

X and y are both bigger than 30. x and y have HCF 21 and LCM 1617. Find x and y.

Sunny_sXe [5.5K]

The values of x and y are 99 and 343

The HCF of numbers is the highest common factors of the numbers

The LCM of numbers is the lowest common multiple of the numbers

The HCF and the LCM are given as:

$HCF = 21$

$LCM = 1617$

Multiply the HCF and the LCM

$HCF \times LCM = 21 \times 1617$

$HCF \times LCM = 33957$

The product of the numbers x and y equals the product of the HCF and the LCM.

So, we have:

$x \times y = 33957$

<h3>Prime Factors</h3>

Express 33957 as a prime factor

$x \times y = 3^2 \times 7^3 \times 11$

Rewrite the equation as

$x \times y = 99 \times 7^3$

$x \times y = 99 \times 343$

By comparison:

$x = 99$

$y= 343$

Hence, the values of x and y are 99 and 343