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Vesna [10]
3 years ago
12

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0

Answer: x=5

Step-by-step explanation:

\frac{2x+0.8}{9}=1.2

\mathrm{Multiply\:both\:sides\:by\:}9

\frac{9\left(2x+0.8\right)}{9}=1.2\cdot \:9

\mathrm{Simplify}

2x+0.8=10.8

\mathrm{Subtract\:}0.8\mathrm{\:from\:both\:sides}

2x+0.8-0.8=10.8-0.8

Simplify

2x=10

\mathrm{Divide\:both\:sides\:by\:}2

\frac{2x}{2}=\frac{10}{2}

Simplify

x=5

Gnoma [55]3 years ago
4 0

Answer:

5

Step-by-step explanation:

2x+.8/9= 1.2

Step 1- Multiply 9 on both sides.

2x+ 0.8 =10.8

Step 2- Subract 0.8 on both sides.

2x= 10

Step 3- Divide 2 on both sides

x=5

hope this helps :)

let me know if you need any other help!

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4 0
3 years ago
Which is the correct operation for 45-3x5
Sliva [168]
You want to use PEMDAS for this.
<em>P</em>= arenthesis ( )
<em>E</em>= xponents a²
<em>M</em>= ultiply ×
<em>D</em>= ivide ÷
<em>A</em>= dd +
<em>S</em>= ubtract -

What you want to do is go in order and ask yourself as you go.
Are there any <u><em>Parenthesis</em></u>? <em>No
</em>Are there any <u><em>Exponents</em></u><em />? <em>No</em>
Is there any <em /><u><em>Multiplication</em></u><em />? <em>Yes
</em>
<em />Is there any <em><u>Division</u></em>? <em>No
</em>
<em />Is there any <em><u>Addition</u></em>? <em>No
</em>
<em />Is there any <em><u>Subtraction</u></em><u />? <em>Yes</em><em>
</em>
<em />Thats when you stop and you multiply what you have in the PEMDAS. Top to bottom. 3x5 which gives you 15. Now you equation is 45-15. Thats when you subtract and you get your answer which is 30.
6 0
3 years ago
Please help!! what is the solution to the equation
telo118 [61]

Answer:

A the first option

3 0
3 years ago
(x-5)2/5=4 Solve the equation.
Naddika [18.5K]

Answer: x=15

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Evaluate the expression if a=2,b=-3,C=-1, and D=4<br><br><br> -2(b^2-5c)
Alenkasestr [34]

\qquad \qquad  \bf \huge\star \:  \:  \large{  \underline{Answer} }  \huge \:  \: \star

  • Equivalent value = -28

\textsf{  \underline{\underline{Steps to solve the problem} }:}

\qquad❖ \:  \sf \: - 2( {b}^{2}  - 5c)

( put the values )

\qquad❖ \:  \sf \: - 2 \{( - 3) {}^{2}  - 5( - 1) \}

\qquad❖ \:  \sf \: - 2(9 -  (- 5))

\qquad❖ \:  \sf \: - 2(9 + 5)

\qquad❖ \:  \sf \: - 2 \times 14

\qquad❖ \:  \sf \: - 28

\qquad \large \sf {Conclusion}  :

  • -2(b² - 5c) = -28

7 0
2 years ago
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