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disa [49]
3 years ago
6

2/5h-7=12/5h-2h+3 Is this equation no solution? How? Show your work

Mathematics
1 answer:
masha68 [24]3 years ago
8 0

To solve this problem, we simply need to solve this equation by adding like terms and isolating the x.

Let's look at the problem. We can see that we can move that variable h on the left side to the right side so we can combine all like terms on that variable and simplify. In order to do this, we subtract 2/5h from both sides.

-7=\frac{12}{5}h-2h+3-\frac{2}{5}h

We can subtract the fractional variables to get 10/5h. If we simplify this, we would get 2h.

-7=2h-2h+3

Let's combine the 2h and we get 0.

-7=3

Is this statement true? No. So yes, this equation would be no solution because the two numbers do not equal to each other.

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How do i solve 7/11 = 18/x+1
Elanso [62]
Solve for x by cross multiplying

Exact form: x= 191/7

Decimal form :x=27.28571428

Mixed number form:x=27 2/7

5 0
3 years ago
X = 22 + 10x<br> How to find x?
GrogVix [38]

Answer:

x = -2.44

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 10x from both sides:

x (-10x) = 22 + 10x (-10x)

x - 10x = 22

-9x = 22

Isolate the variable, x. Divide -9 from both sides:

(-9x)/-9 = (22)/-9

x = 22/-9

x = -(22/9)

x = -2.44 (repeating).

x = -2.44 (rounded) is your answer.

~

7 0
3 years ago
F(x) = 14 – 0.5x f(30)=​
love history [14]

Answer: f(30) = -1

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3 0
3 years ago
Read 2 more answers
Find the cost in dollars of the operating a 60-W lamp continuously for 1 week when the power utility rate is 18 cents/kWh .
Alex
<h2>Answer:</h2>

The cost in dollars is:

                       $ 1.8144

<h2>Step-by-step explanation:</h2>

It is given that:

The 60-W lamp is operated  continuously for 1 week.

We know that:

  1 week=7 days

and 1 day=24 hours

This means that:

     1 week=24×7

i.e.  1 week= 168 hours

Also, 1 kW=1000 W

This means that:

 1 W=0.001 kW

Hence,

 60-W=0. 060 KW

i.e. Power= 0.60 KW

Hence, the energy consumed is:

Energy=Power×Time

i.e.

Energy=0.060×168

i.e.

Energy=10.08 KWh

Also, cost of 1 KWh=18 cents

We know that:

1 cent=0.01 dollar

This means that:

18 cents=0.18 dollar

i.e.

Cost of 1 KWh=$ 0.18

Hence, cost of 10.08 KWh is: $ (0.18×10.08)

i.e.

Cost of 10.08 KWh is: $ 1.8144

7 0
3 years ago
Type the integer that makes the following addition sentence true<br> Blank + (-8) = -2
kati45 [8]
The answer would be 6. This be because 6 + -8 = -2.
3 0
3 years ago
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