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artcher [175]
3 years ago
12

A flight from New York City to Chicago takes 3 1/2 hours

Mathematics
1 answer:
SpyIntel [72]3 years ago
3 0

Answer:

8 HOURS  PLEASE GIVE BRAINLIEST

Step-by-step explanation:

NY TO CHICAGO = 3.5 HOURS

CHICAGO TO LA = 4.5 HOURS


NY  TO   CHICAGO            CHICAGO TO LA

        3.5                     +                4.5              =  8 HOURS

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Which of these systems of equations would be best solved using the subtraction​ method?
Lynna [10]

Answer:

Step-by-step explanation:

1. x+2y=6 or x=6-2y

3x-2y=2

3(6-2y)-2y=2

18-6y-2y=2

18-8y=2

-8y=-18+2

-8y=-16

y=-16/-8

y=2 ans.

x+2*2=6

x+4=6

x=6-4=2 ans.

Proof:

3*2-2*2=2

6-4=2

2=2

I leave the rest for you to practice with.

3. 4x+y=7

2x+5y=-1

 

5. 3x+2y=-2

6x-y=6

Solve the system using the elimination method. Show all your steps.

7. -3x+3y=3

3x+y=9 add.

---------------------------------

4y=12

y=12/4

y=3 ans.

3x+3=9

3x=9-3

3x=6

x=6/3

x=2 ans.

Proof:

-3*2+3*3=3

-6+9=3

3=3

I'll leave the rest for practice.

9. -5x+12y=20

x-2y=-6

11. 3x+2y=1

4x+ 6y= 7

4 0
2 years ago
Kyle grates 4/8 pound of cheese for enchiladas. He grates 2/8 pound of cheese for tacos. How much cheese does Kyle grate in all?
babymother [125]

He grates 6/8 pounds of cheese in all.

For this problem, you just have to add the numerators and keep the denominators.

4/8 + 2/8 = 6/8.

Remember, if the denominator is the same, just add the numerator.

7 0
3 years ago
Read 2 more answers
If you have an 81 for your 9 weeks grade but make a 70 on your exam whats going to be your final grade?
Ivan
To do this you need the mean.
(81*9+70)/10 that is the mean equation.
Solve.
(799)/10
79.9
79.9% Will be your grade or a C
4 0
3 years ago
Bill spent less than 26$ on a magazine and five books. The magazine cost 4$
mamaluj [8]

Answer:

24 dollars

Step-by-step explanation:

6$for each one if u multiply then you'll get the number

5 0
3 years ago
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PLS HELP ME I E BRAINLIEST!!
valentinak56 [21]

Answer:

Step-by-step explanation:

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2 years ago
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