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Ivanshal [37]
3 years ago
6

Solve the equation x – 5 = 0.1(x + 5) for x

Mathematics
2 answers:
AlexFokin [52]3 years ago
5 0

Answer:

Step-by-step explanation:

x - 5 = 0.1(x +5)

x - 5 = 0.1x + 5*0.1

x -5 = 0.1x + 0.5 {Add 5 to both sides}

  x = 0.1x + 0.5 + 5

  x = 0.1x + 5.5

x -0.1x = 5.5      {subtract 0.1x from both sides}

  0.9x =5.5         {Divide both sides by 0.9}

        x = 5.5/0.9

       x = 55/9

       x = 6 1/9

Dmitriy789 [7]3 years ago
3 0

Answer:

<h2>           x = ⁵⁵/₉ = 6¹/₉  </h2>

Step-by-step explanation:

x - 5 = 0.1(x + 5)           {multiply both sides by 10}

10x - 50 = x + 5            {subtract x from both sides}

9x - 50 = 5                   {add 50 to both sides}

9x = 55                         {divide both sides by 9}

x = ⁵⁵/₉ = 6¹/₉

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Please help
givi [52]

Answer:  C)  4

==========================================================

Explanation:

Let's isolate t

-3 > -3t + 6

-3+3t > 6

3t > 6+3

3t > 9

t > 9/3

t > 3

This means any value can replace t such that it's larger than 3.

Something like t = 1/3 = 0.33 won't work since it's not larger than 3.

But something like t = 4 would work because it makes t > 3 true.

That's why choice C is the final answer.

4 0
3 years ago
Thalia jogged 3/4 of a mile in 1/6 of an hour. At what average speed did Thalia jog?
TEA [102]
9/2 mph. You would need to multiply both by six to get exact mph, and three fourths times six is 18/4=9/2=4.5 mph
4 0
4 years ago
Read 2 more answers
((sinB)/1+cosB) + ((1+cosB)/sinB) = 2cscB prove that the equation is an identity
Contact [7]

Step-by-step explanation:

If you need any explanation, we can communicate normally

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3 years ago
If 4/3x - 1/2 = 0 then x=
butalik [34]
4/3x - 1/2 = 0   Given
4/3x = 1/2   Add 1/2 to both sides
x = 3/8   Multiply each side by 3/4

It is important when doing equations like these to remember that you need to multiply by the reciprocal of the fraction, not divide by it. For example, if another you have 1/2x = 1, you need to multiply by 2/1 or 2, not divide by 1/2.
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Rick buys a spatula costing $2.23. He gives the cashier $5.00. The cashier gives him his change using the least number of coins
Virty [35]

Answer:

2 Dollar Bills

3 quarters

2 pennies

5 0
3 years ago
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