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lys-0071 [83]
3 years ago
15

18x + 12- 4 I NEED HELP ASAP

Mathematics
2 answers:
Ber [7]3 years ago
8 0

Answer:

18x+8

Step-by-step explanation:

Alika [10]3 years ago
8 0

Answer:

18x+8

Step-by-step explanation:

Subtract 4 from 12

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A train heads south out of Bloomington an hour after a northbound train
ahrayia [7]

9514 1404 393

Answer:

  • northbound: 2.5 hours
  • southbound: 1.5 hours

Step-by-step explanation:

When the second train leaves the station, the trains are already 63 miles apart. The rate of increase of their separation is (57 +63) = 120 miles per hour. The remaining 243-63 = 180 miles of separation will be achieved in ...

  (180 mi)/(120 mi/h) = 1.5 h

The northbound train will have traveled 2.5 hours; the southbound train will have traveled 1.5 hours when the trains are 243 miles apart.

7 0
3 years ago
Help me idk how to do this
ElenaW [278]
To do this, you have to plug each x value into the rule.

1.y = 15 - 3×2
y = 15 - 6
y = 9

So the first y value would be 9.

2.y = 15 - 3×3
y = 15 - 9
y = 6

3. y = 15 - 3×4
y = 15-12
y = 3

4. y = 15 - 3×5
y = 15-15
y = 0

Hope this helps!

3 0
3 years ago
What is the value of the 23rd term in the sequence 10, 8, 6, 4, ...?
Vedmedyk [2.9K]

Answer:

T23=a+22d

d=T2-T1

d=8-10=-2

a(first term)=10

T23=10+22×-2

=10+(-44)

=10-44

=-34

therefore:T23=-34

8 0
3 years ago
Read 2 more answers
The average of four numbers is 26.
Alchen [17]

Answer: 26!!

Step-by-step explanation: the average is like the mean which is all 4 numbers added together divided by 4. 26 times 4 is 104. 20 +42+16  = 78. 104 - 78 is 26 so the 4th number is 26. you can check the work by adding 20 42 16 and 26 together which equals 104. 104 divided by 4 is 26!! so our answer is correct!!

3 0
3 years ago
The sum of the squares of 3 consecutive positive integers is 116. What are the numbers?
dalvyx [7]
3 divided by 116 is 37
5 0
3 years ago
Read 2 more answers
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