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Marat540 [252]
3 years ago
8

Can someone please help me with these three questions and explain

Mathematics
1 answer:
Leokris [45]3 years ago
3 0

Step-by-step explanation:

an = a1 + (n - 1)d

Question 8)

2,8,14

d=a2-a1

d=8-2=6

a77= 2+ (76)*6

a77= 2+456=458

a77= 458

Question 9)

-12,-17,-22

d= -17+12= -5

a82= -12+ (81)*(-5)= -12-405= 417

a82= 417

Question 10)

9,13,17

d= 13-9= 4

a49= 9+ (48)*4= 201

a49= 201

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3 years ago
{y=-x+1<br> {y=4x-14<br> please help me <br> my paper is due today
Temka [501]

- x + 1 = 4x - 14 \\  - x - 4x =  - 14 - 1 \\  - 5x =  - 15 \\ x = 3

Substitute x = 3 in any given equations. I will do in y = - x + 1

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Therefore the answer is (3,-2)

7 0
3 years ago
3 1/4 plus 2 3/4 help me plz
Ilya [14]
The answer would be 6 because by adding the whole numbers, 3+2, you would get 5 and since the fractions both have denominators of 4, you had both fractions, 1/4+3/4, which gives you 4/4 or 1 whole. 5+1=6 and that's your answer.
Hope I Helped!
3 0
3 years ago
Read 2 more answers
Elimination method for x+y=5 and x+4y=14
Genrish500 [490]
I hope this helps you



-[x+y=5]


-x-y=-5
x+4y=14


-x-y+x+4y=-5+14


3y=9 y=3 x=2
4 0
4 years ago
Car decreased in price by 3%. Original price is $45600. New Price= A x original price
Karo-lina-s [1.5K]

A decrease of 3% means the car is now valued at 97% of the original price. ( 100% -3% = 97%)


multiply original price by 97%

45,600 x 0.97 = 44,232


Answer: $44,232

7 0
2 years ago
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