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sukhopar [10]
3 years ago
9

12.

Mathematics
1 answer:
Genrish500 [490]3 years ago
4 0

Answer:

I'm pretty sure the answer is D

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This is really hard for me can someone please help<br> This gives me a headache trying to do it
Papessa [141]
1. 3x-5<19 
    3x-5+5<19+5
    3x<24
    3x/3<24/3
    x<8

2. -2x+12<-4
    -2x+12-12<-4-12
    -2x<-16
    -2x/-2>-16/-2
       x>8

3. Because the numbers are positive when divided.

4. The inequality sign is reversed because the 2nd to last step is divided by by a negative number. (This is also the same for multiplication)
 
5. -7d+8>29
    -7d+8-8>29-8
    -7d/7>21/-7
       d>-3

6.12-3b<9
   12-12-3b<9-12
    -3b/-3>-3/-3
        b>1

7.z/7-6=>-5
   z/7-6+6=>-5+6
   z/7*7=>1*7
       z=>7                                      (what grade are you in?!)
8 0
3 years ago
What is 92% in a fraction
Aliun [14]
92% is 92 out of 100
therefore simply put 92 over 100 and simplify it.
Meaning divide top and bottom into 2. Then you get your answer, if needed simplify again.
6 0
3 years ago
Read 2 more answers
A new American graduate is contemplating buying a
Law Incorporation [45]

Answer:

The best option is to buy Japanese Car.

Step-by-step explanation:

Fuel usage per year is 150000/ 8 = 18750 miles per year

Fuel cost (year 1 -8) = $3.0, $3.06, $3.12, $3.18, $3.25, $3.312, $3.38, $3.5

Japanese Car:

Fuel usage 18750 / 23 = 815 * $3 = $2446

Fuel charges (year 1 -8) = $2445, $2494, $2623, $2758. $2900, $3050, $3207, $3372

Repair Cost (year 1 - 8) = $700, $721, $742, $764, $787, $811, $835, $860

Insurance cost (Year 1 - 8) = $700, $714, $728, $742, $757, $772, $788, $804

Present value of cost at 5% = 24674.07

Cost of car is $30,000

Total cost = $54674.07

Amercian Car:

Cost $35,000

Fuel usage 18750/20 = 937.5 * $3 per gallon = $2812.5.

Fuel charges (year 1 -8) = $2812, $2913, $2986, $3011. $3098, $3124, $3176, $3208

Repair Cost (year 1 - 8) = $800, $894, $921, $978, $1109, $1176, $1207, $1301

Insurance cost (Year 1 - 8) = $800, $827, $876, $898, $908, $932, $954, $934

Present value of cost at 5% = 25302.18

Cost of car is $35,000

Total cost = $60302.

German Car:

Cost = $45,000

Fuel usage 18750 / 21 = 892 * $3 = $2678

Fuel charges (year 1 -8) = $2679, $2732, $2786, $2842. $2899, $2987, $3077, $3171

Repair Cost (year 1 - 8) = $1000, $1040, $1081, $1124, $1169, $1216, $1265, $1316

Insurance cost (Year 1 - 8) = $850, $867, $884, $902, $920, $938, $957, $976

Present value of cost at 5% = 27105.73

Cost of car is $45,000

Total cost = $72105.

4 0
3 years ago
Read 2 more answers
completa con las razones trigonométricas de cada triángulo rectángulo dado y encuentra el lado faltante aplicando el teorema de
Rus_ich [418]

primero vamos a calcular el lado faltante usando el teorema de pitagoras para poder obtener el lado faltante a

a=\sqrt[]{hipotenusa^2-cateto^2}a=\sqrt[]{100^2-85^2}=52.68

a=52.68 m

teniendo el lado faltante podemos calcular las razones trigonometricas

\sin (55)=\frac{85}{100}=0.85\cos (55)=\frac{52.68}{100}=0.52\tan (55)=\frac{85}{52.68}=1.61

\csc (55)=\frac{100}{85}=1.17\sec (55)=\frac{100}{52.68}=1.89\cot (55)=\frac{52.68}{85}=0.61

4 0
1 year ago
Rectangle KLMN is graphed on the coordinate plane below.The figure is rotated 360° counterclockwise using the origin as the cent
VladimirAG [237]

Since 360 is a full loop around the circle, the points end up in the exact same place.

3 0
3 years ago
Read 2 more answers
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