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sergey [27]
3 years ago
7

What is the next term of the arithmetic sequence? -2,3, 8, 13, 18,

Mathematics
1 answer:
jenyasd209 [6]3 years ago
3 0

Answer:

23

Step-by-step explanation:

difference between number is 5

5n-7 to get to next term

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Zack and Dave each bought some coins from jerry online. Dave bought 5 more coins than Zack bought
Lubov Fominskaja [6]

Answer & Step-by-step explanation:

number of Dave's coins = number of Zack's coins + 5

The question is asking to find the difference in prices paid (thus "<em>more</em>"), completely unrelated to the number of coins Zack bought as these two numbers are independent of one another. The difference in price can be found by simply multiplying the cost of one coin by 5.

3 0
3 years ago
Midpoint of (-2,-4) and (2,1)
Mice21 [21]
I got it =4/5 hope it’s right

7 0
3 years ago
Given the replacement set {0,1,2,3,4} .solve 6x-3=3
Vsevolod [243]
This statement is false
4 0
3 years ago
In an arithmetic sequence, t4 + t5 + t6 = 300, and t15 +t16+ t17 = 201. Find t18.
stiks02 [169]
In an arithmetic sequence:
Tn=t₁+(n-1)d

t₄=t₁+(4-1)d=t₁+3d
t₅=t₁+(5-1)d=t₁+4d
t₆=t₁+(6-1)d=t₁+5d

t₄+t₅+t₆=(t₁+3d) +(t₁+4d)+(t₁+5d)=3t₁+12d

Therefore:
3t₁+12d=300    (1)


t₁₅=t₁+(15-1)d=t₁+14d
t₁₆=t₁+(16-1)d=t₁+15d
t₁₇=t₁+(17-1)d=t₁+16d

t₁₅+t₁₆+t₁₇=(t₁+14d)+(t₁+15d)+(t₁+16d)=3t₁+45d

Therefore:
3t₁+45d=201    (2)

With the equations (1) and (2) we make an system of equations:

3t₁+12d=300
3t₁+45d=201

we can solve this system of equations by reduction method.

  3t₁+12d=300
-(3t₁+45d=201)
-----------------------------
       -33d=99      ⇒d=99/-33=-3

3t₁+12d=300
3t₁+12(-3)=300
3t₁-36=300
3t₁=300+36
3t₁=336
t₁=336/3
t₁=112

Threfore:

Tn=112+(n-1)(-3)
Tn=112-3n+3
Tn=115-3n

Now, we calculate T₁₈:

T₁₈=115-3(18)=115-54=61

Answer: T₁₈=61




5 0
3 years ago
What is 25% less than x
vladimir2022 [97]

Answer:

3/4x

Step-by-step explanation:

5 0
3 years ago
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