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timurjin [86]
3 years ago
10

Here’s another one if you want to answer it

Mathematics
1 answer:
iVinArrow [24]3 years ago
8 0

<u><em>Answer:</em></u>

D. \frac{-9}{2} \leqx

<u><em>Explanation:</em></u>

<u>Before proceeding, please remember the following:</u>

1. When you do a certain operation on one side of the inequality, you have to do the same operation on ALL other sides to keep the original value of the inequality unchanged

2. To solve an inequality means that we want to isolate the variable.

<u>Now, for the given inequality, we have: </u>

-3 \leq\frac{2x-3}{4}

Based on the above, for the middle part of the inequality, we want to have the x variable standing alone.

<u>This can be done as follows:</u>

1. Multiply all sides by 4

<u>This would give us:</u> -12 \leq 2x-3 < 24

2- Add 3 to all sides

<u>This would give us:</u> -9 \leq2x < 27

3- Finally, divide all sides by 2 to have the x on its own

<u>This would give us:</u> \frac{-9}{2} \leq x < \frac{27}{2}

Hope this helps :)

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2 years ago
Y=1/4x+7 y=1/2x+5 The y-coordinate of the solution to the system shown is _____.
Brilliant_brown [7]

Answer:

The y-coordinate of the solution to the system shown is 9

Step-by-step explanation:

y=\frac{1}{4}x+7\\y=\frac{1}{2}x+5

We need to solve these system of equations and find value of y

Let eq (1) bey=\frac{1}{4}x+7

and eq(2) be y=\frac{1}{2}x+5

Putting value of y from eq(2) into eq(1)

y=\frac{1}{2}x+5=\frac{1}{4}x+7\\\\\frac{1}{2}x-\frac{1}{4}x=7-5\\\frac{2x-x}{4}=2\\\frac{x}{4}=2\\x=2*4\\x=8

Putting value of x=8 in equation 1 to find value of y

y = \frac{1}{4}x+7

y = \frac{1}{4}(8)+7

y =2+7

y =9

So, The y-coordinate of the solution to the system shown is 9

8 0
4 years ago
The slope between the points (-1, 1) and (5,-2) *
Leviafan [203]

Answer: y=-2x+3

Step-by-step explanation:

M= 1--2/-1-5

Y-1=-2(x-1)

-2x+2+1

Y=-2x+3

8 0
3 years ago
The ratio of the sides of a parallelogram is 3 : 5 and its perimeter is 48 cm, what is its sides?​
pshichka [43]

Answer: 9 and 15

Explanation: For this problem we will be using the formula of the perimeter of the parallelogram and use algebraic equation to solve it.

"The perimeter of a parallelogram is 48cm"

-So we already know the perimeter of this polygon

-We don't know the other sides

-We know both sides are on a ratio of 3/5

-We know the formula for perimeter of a parallelogram is P=2(a+b)

Let's use the formula to solve this. First lets substitute values we know.

1.) Write the formula.

P=2(a+b)

2.) Replace any known values.

48=2(a+b)

3.) This part is the trick part. Since the sides of the parallelogram are on a ratio of 3:5, it means that the first side is 3 times more of any unknown value, while the second side will be 5 times more of that same value. knowing this we can turn this into an Algebraic equation.

48=2(a+b)

48=2(3x+5x)

4.) Solve.

48=2(3x+5x)

48=2(8x)

48=16x

48/16=16x/16

3=x; or x=3

5.) Now that we know our "unknown value", we can though it back into the ration to figure out the sides lengths.

First side length = 3x = 3(3) = 9

Second side length = 5x = 5(3) = 15

6). Therefore, the first side has the length of 9 and the second side has the length of 15.

7.) Check.

P=2(a+b)

P=2(9+15)

p=2(24)

p=48

48=48

6 0
3 years ago
Simplify.<br><br> 8m+4n+7m−2n
liraira [26]

Answer:

15m + 2n

Step-by-step explanation:

3 0
3 years ago
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