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Margaret [11]
3 years ago
13

X-5/2 =9 solve for x

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
5 0
 Best Answer:<span>  </span><span>(x - 5)^2 = 9 
x - 5 = ±√9 
x = 5 ± 3 
x = 2, 8</span>
solmaris [256]3 years ago
3 0
First u have to move the -5/2 to the other side. Sou add 5/2 to -5/2, which cancels out. Then ur stuck with x=9+5/2. Next u solve. 9+2.5=11.5. so ur answer is 11.5

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you have 5 red crayons, 3 yellow crayons, 4 blue crayons and purple crayons. what multiplication would you do to find the probab
almond37 [142]

Answer:

3/46

Step-by-step explanation:

7 0
3 years ago
Answer and explanation please. ty
larisa [96]
Answer
0.47qt a sec
Reason
Convert the gallons to quart using the formula “q=4g”
q=4(7)= 28
So we learn that it’s 28 quarts a minute. To figure it out by the second divide by 60.
28 divided by 60 equals 0.4667
Round to the nearest hundredth and it equals
0.47
There for it is 0.47 quarts a second.
6 0
4 years ago
Write two different expressions that<br> represent the quantity x decreased<br> by 30%.
s344n2d4d5 [400]

Answer:

Step-by-step explanation:

x - 30 = 14 - 3x

    4x = 44

      x = 11

Let's call the unknown number x

Now let's decrease it by 30, that is x-30

Now let's write out "14 decreased by three times the number", that is 14 - 3x

The problem says these are the same, that is x - 30 = 14 - 3x

We now want to isolate, or solve for, x

Move the x to one side of the equation by adding 3x to both sides

3x + x -30 = 14 - 3x + 3x

4x -30 = 14

Now move the 30 to the right hand side by adding 30 to both sides

4x - 30 + 30 = 14 + 30

4x = 44

Now all we have to do to get x is divide both sides by 4

4x/4 = 44/4

x = 11

4 0
2 years ago
4x-2y=-1 -4x+4y=-2 please help
Shtirlitz [24]
<span>4x-2y=-1
</span><span>Slope = 2 
x-intercept = -1/4
y-intercept = 1/2

</span><span>-4x+4y=-2
</span><span>Slope = 1
x-intercept = 1/2
y-intercept = 1/-2 </span>
3 0
3 years ago
What is the area of the figure:
Luba_88 [7]

For this case we have that the area of the triangle is given by:

A = \frac {b * h} {2}

Where:

b: It's the base

h: It's the height

We have to:

cos (45) = \frac {b} {24}\\b = 24 * cos (45)\\b = \frac {\sqrt {2}} {2} * 24\\b = 12 \sqrt {2}

The atura will be given by:

sin (45) = \frac {h} {24}\\h = 24 * sin (45)\\h = \frac {\sqrt {2}} {2} * 24\\h = 12 \sqrt {2}

So, the area is:

A = \frac {12 \sqrt {2} * 12 \sqrt {2}} {2}\\A=\frac{(12\sqrt{2})^2}{2}\\A = 144

Answer:

144

6 0
3 years ago
Read 2 more answers
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