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horsena [70]
3 years ago
11

Solve the equation 2x-1=13.

Mathematics
2 answers:
netineya [11]3 years ago
8 0

Answer:

7

Step-by-step explanation:

2 time 7 = 14-1 = 13

tiny-mole [99]3 years ago
5 0

Answer:

x=7

Step-by-step explanation:

Collect like terms

2x=13+1.

2x=14

Divide both side by 2

\frac{2x}{2}  =  \frac{14}{2}

x=7

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Order the following numbers from least to greatest <br> -9/2<br> 0<br> 1 3/5<br> 9/7<br> 2/3
marysya [2.9K]

\frac{-9}{2}

0

\frac{2}{3}

\frac{9}{7}

1\frac{3}{5}

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Y=f(x)=-3x find f(x) when x is 3
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x = -9

-3x when x is 3 would be -3(3) = -9

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If the number of Conference participants decreases by 20% compared to last year, there would be 1760 participants this year. If
Basile [38]
2,640 this year
2,112 last year

the 1760 is 20% less than - so 120% of 1760 is the previous year:
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If three-quarters of a gallon of ice cream was shared equally among the 5 people, what fraction of a whole gallon did each perso
Lapatulllka [165]

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3/20

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6 0
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Find the area of quadrilateral ABCD. A. 27.28 units² B. 33.08 units² C. 28.53 units² D. 26.47 units²
Ludmilka [50]

Answer:

<h3>\boxed{ \boxed{ \bold{ \purple{ \sf{28.53 \:  {units}^{2} }}}}}</h3>

Option C is the correct option.

Step-by-step explanation:

For ABD

\sf{ =  \frac{2.89 + 8.59 + 8.6}{2} }

\sf{ =  \frac{20.08}{2} }

\sf{ = 10.04}

∆ ABD = \sf{ =  \sqrt{10.04(10.04 - 2.89)(10.04 - 8.59)(10.04 - 8.6)} }

\sf{  = \sqrt{10.04 \times 7.15 \times 1.45 \times 1.44 }}

\sf{  =  \sqrt{149.8891} }

\sf{ = 12.2429}

For ∆ ACD ,

\sf{s =  \frac{8.6 + 4.3 + 7.58}{2} }

\sf{ =   \frac{20.48}{2} }

\sf{ = 10.24}

∆ ACD = \sf{ =  \sqrt{10.24(10.24 - 8.6)(10.24 - 4.3)(10.24 - 7.58} }

\sf{ \sqrt{10.24 \times 1.64 \times 5.94 \times 2.66} }

\sf{ =  \sqrt{265.3456} }

\sf{ = 16.2894}

Area of quadrilateral ABCD = \sf{12.2429 + 16.2894}

\sf{ = 28.5323}

\sf{ = 28.53} units ²

Hope I helped!

Best regards!

8 0
3 years ago
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