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stiks02 [169]
3 years ago
15

Why are inequalities important in equations

Mathematics
1 answer:
Delicious77 [7]3 years ago
4 0
Because the tell if he number is big or small
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How do you solve 3/4 (5+x) + 4 = 3x + 1? Thanks:)
elena-s [515]

\dfrac{3}{4}(5+x)+4=3x+1\ \ \ \ |\cdot4\\\\3(5+x)+16=12x+4\ \ \ |\text{use distributive property}\\\\(3)(5)+(3)(x)+16=12x+4\\\\15+3x+16=12x+4\\\\31+3x=12x+4\ \ \ \ |-31\\\\3x=12x-27\ \ \ \ |-12x\\\\-9x=-27\ \ \ \ |:(-9)\\\\\boxed{x=3}

3 0
3 years ago
The sum of t and 7 is less than -3
dimulka [17.4K]

if your asking for the equation, it's t + 7 < 3

4 0
3 years ago
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How do I express 9/5 as a sum of a whole number and a fraction
madreJ [45]
That is call a mixed number
9/5=1+4/5
6 0
3 years ago
Choose Equivalent or Not Equivalent <br><br> a. 6(3x+5) and 18x+30 <br><br> b. 12y+3 and 3y+12
ELEN [110]
I think it is B
Hope my answer help you?
5 0
3 years ago
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F a ball with an original velocity of zero is dropped from a tall structure and it takes 7 seconds to hit the ground, what veloc
ss7ja [257]
For this, all you need is the velocity formula which is Vf = Vi + at.
Vf = final velocity.
Vi = initial velocity.
a = acceleration
t = time

Vf = Vi + at. 

Vf= 0 + (-<span> 9.8 m/sec^</span><span>2) (7s)
</span>
*The 0 says that the original velocity is zero. The - 9.8 m/sec^2 is gravity because there is nothing else acting upon it, and it is negative because it is falling. The 7s is time time.*

All you have to do then, is simplify to get 68.6 m/s which is B.

8 0
3 years ago
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