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Troyanec [42]
3 years ago
10

In a sequence of numbers, a3=0, a4=4, a5=8, a6=12, and a7=16. Based on this information, which equation can be used to find the

nth term in the sequence, an?
an=4n−12
A sub n is equal to 4 n minus 12

an=−12n+4
A sub n is equal to negative 12 n plus 4

an=−4n+12
A sub n is equal to negative 4 n plus 12,

an=12n−4
Mathematics
1 answer:
LekaFEV [45]3 years ago
5 0

Answer:

an=−4n+12

A sub n is equal to negative 4 n plus 12,

Step-by-step explanation:

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How to slice using substitution method
marishachu [46]

Answer:

x=3, y=8; (3,8)

Step-by-step explanation:

To use the substitution method, first solve for a variable.

2x+y=14

2x+y(-2x)=14(-2x)

y=14-2x

Now substitute y in the other equation with 14-2x

5x-2(14-2x)= - 1

Simplify by multiplying inside the parenthesis.

5x-28+4x= - 1

Combine the x values

9x-28= - 1

9x=27

x=3

Now substitute the x value in to solve for y

2(3)+y=14

6+y=14

y=8

3 0
3 years ago
A day? 6. If 18 pumps can raise 2150 tonnes of water in 50 days, working 8 hours a day, how much water will be raised in 60 days
Butoxors [25]
Given, 18 pumps----2170 tonnes----10*7 hrs.
So, 16 pumps-------2170 tonnes----10*7*18/16 hrs.
And, 16 pumps-------1736 tonnes----10*7*(18/16)*(1736/2170)hrs. = 63 hrs.

So, no. of days req.= 63/9 = 7 days
5 0
3 years ago
HELP ILL GIVE BRAINLISTTT!
lions [1.4K]

Answer:

You can substitute

4

as

x

in the first equation because

x

and

4

are equal.

2

(

4

)

+

y

=

29

8

+

y

=

29

y

=

21

Step-by-step explanation:

8 0
3 years ago
Matthew built 30 toys airplanes in 5 hours. What was Matthew’s unit rate for building the airplanes?
vodka [1.7K]
It would be 6 toys per hour due to the fact that 30 toys divided by 5 hours would come out to 6
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3 years ago
Whats the solution for y=2x-4, y=3x-7
kodGreya [7K]
The solution for y=2x-4: y= -8

The solution for y=3x-4: y= -12
8 0
2 years ago
Read 2 more answers
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