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suter [353]
3 years ago
8

Solve for X 1/5 X + 1/2 = 1

Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

X = 5/2

Step-by-step explanation:

I will assume that you meant  (1/5)X + 1/2 = 1.  The LCD is 10.

Multiplying both sides by 10, we get:

2X + 5 = 10, or 2X = 5, or X = 5/2

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How do I solve this?
Nat2105 [25]
You can solve with the formula for cuadratic equations:
x=−b±√b2−4ac
2a
3 0
3 years ago
Write this number<br> 7 ones, 2, tens, 3 hundreds
nydimaria [60]

Answer:

327

Step-by-step explanation:

7 ones = 7*1 = 7

2 tens = 2*10 = 20

3 hundreds = 3 * 100 = 300

300 +20 +7 = 327

3 0
3 years ago
a motorboat traveling with a current can go 160km in 4 hours. against the current it takes 5 hours to go the same distance. find
irakobra [83]

The speed of motorboat is 36 kmph and speed of current is 4 kmph.

Step-by-step explanation:

Distance covered in 4 hours = 160 km

Time took on return trip = 5 hours

Let,

x represent the speed of boat.

y represent the speed of current.

Combined speed of boat and current when in same direction = x+y

Speed of boat and current when travelling against = x-y

Distance = Speed * Time

Speed = \frac{Distance}{Time}

x+y = \frac{160}{4}

x+y = 40     Eqn 1

x-y =  \frac{160}{5}

x-y = 32      Eqn 2

Adding Eqn 1 and Eqn 2

(x+y)+(x-y)=40+32\\x+y+x-y=72\\2x=72

Dividing both sides by 2

\frac{2x}{2}=\frac{72}{2}\\x=36

Putting x=36 in Eqn 1

36+y=40\\y=40-36\\y=4

The speed of motorboat is 36 kmph and speed of current is 4 kmph.

Keywords: linear equation, addition

Learn more about linear equations at:

  • brainly.com/question/1087090
  • brainly.com/question/1096947

#LearnwithBrainly

8 0
3 years ago
John has $20.00 to spend for his mother's birthday. A string of pearls and a pair of pearl earrings costs $25.00. They are on sa
Phoenix [80]

Answer:

2.50

Step-by-step explanation:

30% of 25 is 7.50 take that away from 25 gives you 17.50 take that away from 20 gives you 2.50

4 0
3 years ago
Help me please, please
neonofarm [45]
-243 x -128
——————-
-27 x -32

31104/864
=36
7 0
3 years ago
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