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stepan [7]
3 years ago
11

Tính giá trị 2a+ 3=? với a=1

Mathematics
1 answer:
MrRissso [65]3 years ago
4 0

Answer:

No te puedo entender lo siento

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At an amusement park , the cost of 3 adult tickets and 4 children’s ticket is $126.50 another customer paid $120.50 for 2 adult
KonstantinChe [14]

Answer:

1 Adult ticket=$21.50 ; 1 Children ticket=$15.50

Step-by-step explanation:

3A+4C=126.50

2A+5C=120.50

We find the price of adult tickets 1st.

15A+20C=632.5

8A+20C=482

7A=632.5-482=150.5

1A=21.50

Now we find Children ticket

6A+8C=253

6A+15C=361.50

7C=108.50

1C=15.50

4 0
3 years ago
Camillo estimates the weight of his dog. The veterinarian says that the dog weighs 84 pounds. The percent error in Camillo's est
Makovka662 [10]

Answer:

A.Yes B.Yes C.No D.Yes E.No F.No

Step-by-step explanation:

10% of 84 is 8.4 and 84-8.4=76.6 and anything between 76.6-84 could have been the estimate.

7 0
2 years ago
What fractions are equivalent to - 2/3
Valentin [98]

Answer:

- 4/6, -6/9, -8/12, -10/15, -12/18, -14/21, and more

5 0
3 years ago
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-16 + 3n = -8 - 5n what does n equal?
maksim [4K]

Step-by-step explanation:

-16 + 3n = - 8 - 5n

Bringing like terms on one side

3n + 5n = - 8 + 16

8n = 8

n = 8/8

N = 1

5 0
3 years ago
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How much time will Alex need to walk to his school, which is 2 1/4 miles away from his house, if he would walk with the speed of
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It would take him 30 mins
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2 years ago
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