1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
poizon [28]
3 years ago
11

If the 50th and 51st terms of an arithmetic sequence are 140 and 142, find the 1st term

Mathematics
1 answer:
morpeh [17]3 years ago
4 0

Answer:

The first term is 42.

Step-by-step explanation:

The common difference is 142  - 140 = 2 so we have

50th term = a1 + 2(50 -1) = 140    where a1 is the first term

a1 + 98 = 140

a1 = 140 - 98 =  42.

You might be interested in
Write an algebraic expression to represent each scenario.<br><br> Part A: “the sum of 6 and y”
Nostrana [21]

Answer:

6 + y

Step-by-step explanation:

Here, we want to write an algebraic expression to represent the situation

Mathematically, we want to add 6 and y

The algebraic expression will be;

6 + y

3 0
3 years ago
a pool tank fills 60 gallons of water in 1/5 of an hour. How many gallons of water can be filled up in 1 hour?
klasskru [66]
If it takes 1/5 hour to fill 60 gallons
than multiply the fraction by 5 to get a whole hour
and multiply the 60 gallons by 5 to get the amount of water created in that hour
60*5= 300 gallons of water in 1 hour
5 0
3 years ago
Read 2 more answers
What does x is greater than 5 mean
kotegsom [21]

Answer:

That  x is any number  bigger that 5 so 6 plus

Step-by-step explanation:

3 0
3 years ago
Scientists discovered a large star 113,000 light years from Earth. A light
Oxana [17]

Answer: 6.6444 × 10^16

7 0
3 years ago
Which of the following is the solution set of the given equation?<br><br> (x - 3) - 2(x + 6) = -5
Vlad1618 [11]

Answer: x=−10

Step-by-step explanation:

x−3−2(x+6)=−5

x+−3+(−2)(x)+(−2)(6)=−5(Distribute)

x+−3+−2x+−12=−5

(x+−2x)+(−3+−12)=−5(Combine Like Terms)

−x+−15=−5

−x−15=−5

−x−15+15=−5+15

−x=10

8 0
3 years ago
Other questions:
  • Which of the following expressions represents "the sum of n and the sum of 8 and 6"?
    12·2 answers
  • A glass vase is shaped like a cylinder and has a radius of 2.5 inches. The vase holds 170 cubic inches of water. How tall is the
    5·2 answers
  • 2.1, -2.1, 2 and 2 1/11, -2 from least to greatest show work
    10·1 answer
  • Determine the degree of the polynomial: 7m6n5
    10·1 answer
  • Please help!!<br> What is 5/6 + 16/6
    9·2 answers
  • Please help — Which ratio represents cos(c)?
    5·1 answer
  • Write the decimal represented by each point.
    15·2 answers
  • PLEASE HELP!!
    12·1 answer
  • Please help me ASAP really need help!!!
    13·1 answer
  • What’s the gradient and y intercept for c and e and could u explain pls thx
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!