3 years ago

A. 5x - 2 = 8b. 4x - 3= 2x + 9C. 6x + 3 = 2x + 8

Mathematics

1 answer:

Elena L [17]3 years ago

4 0

Answer:

a) x=2

b)x=12

c)x=5/4

Step-by-step explanation:

a)5x-2=8

5x=8+2

5x=10

x=2

b)4x-3=2x+9

4x-2x=9+3

2x=12

x=6

c)6x+3=2x+8

6x-2x=8-3

4x=5

x=5/4

Proof:

a)5x-2=8

5(2)-2=8

10-2=8

8=8

b)4x-3=2x+9

4(12)-3=2(12)+9

48-3=24+9

45=45

c)6x+3=2x+8

6(5/4)+3=2(5/4)+8

30/4+3=10/4+8

15/2+3=5/2+8

10.5=10.5

Hope this helps ;) ❤❤❤

You might be interested in

two functions a and b are described as follows function a: y=8x+3 function b:the rate of change is 1 and the y intercept is 4 ho

AnnZ [28]

Answer:

Step-by-step explanation:

rate of change of function not necessary mean linear, it can be the slope of a tangent line.

a: y=8x+3 slope = 8

b: rate of change: 1

8-1=7

I wish this is true...

3 0

3 years ago

MATH HELP LEASE WILL GIVE BRAINLIEST!!!

Marysya12 [62]

The answer is (22) hope it helps have a great day

8 0

3 years ago

Write a quadratic equation to represent the situation. Solve the equation by factoring. Use the table and graphing method to che

Step2247 [10]

Answer:

Step-by-step explanation:

6 0

3 years ago

X+3/2 - X-2/2 = 1 Hence find p, if 1/X + p = 1

jek_recluse [69]

Answer:

pie =1 so hence find p x+3+2 -X-22+1 =1

Step-by-step explanation:

3 0

2 years ago

I've tried to get the answer for this 13 times now (not joking), plzzz help: write a formula that represents the number of peopl

gtnhenbr [62]

Answer:

2820 seats
aₙ = 3n + 9

Step-by-step explanation:

This is an AP with:

The first term a₁ = 12
Common difference d = 3
Number of terms n = 40

Number of the seats:

Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)
S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seats

Formula of nth term:

aₙ = a₁ + (n - 1)d
aₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9
aₙ = 3n + 9

6 0

3 years ago

A. 5x - 2 = 8b. 4x - 3= 2x + 9C. 6x + 3 = 2x + 8​

A. 5x - 2 = 8b. 4x - 3= 2x + 9C. 6x + 3 = 2x + 8