3 years ago

60 pts! 2x + 34 = 4(x + 5)solve the equation for x.

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

7 0

Answer:

x=7

Step-by-step explanation:

expand 4(x+5): 4x+20

2x+34=4x+20

subtract 34 from both sides

2x+34-34=4x+20-34

2x=4x-14

subtract 4x from both sides

2x-4x=4x-14-4x

-2x=-14

divide both sides by -2

-2x/-2=-14/-2

x=7

You might be interested in

The first five terms of a linear sequence are given below. 7 , 12 , 17, 22 , 27 , ... What is the next term of the sequence?

Norma-Jean [14]

Answer:

Step-by-step explanation:

$a_1=7\\a_2=7+5=12\\a_3=12+5=17\\a_4=17+5=22\\a_5=22+5=27\\\\a_6=27+5=32\\a_7=32+5=37\\a_8=37+5=42\\a_9=42+5=47\\\vdots$

8 0

3 years ago

Find the value of x. PLEASE HELP ASAP

Elan Coil [88]

Hi there!

$\large\boxed{A. \text{ } 7}$

The following trapezoidal theorem states that:

Middle segment = average of top and bottom side

Thus:

M = 1/2(b1 + b2)

21 - x = 1/2(17 + 11)

Solve:

21 - x = 1/2(28)

21 - x = 14

Subtract 21 from both sides:

-x = 14 - 21

-x = -7

Multiply both sides by -1:

x = 7

5 0

3 years ago

The height of a football after it has been kicked from the top of a hill can be modeled by the equation h = 2(4 − 4t)(2t + 5), w

Gennadij [26K]

The maximum time 1.75 second in case of not having the height:
1. change in ax²+bx+c form⇆ -16t²+56t-40=h
h=(8-8t)(2t-5)
h=16t-40-16t²+40t
h=-16t²+56t-40
2. t max=-b/(-2a)=-56/(-2×-16)=1.75 second

4 0

3 years ago

Which is most likely to weigh 2 pounds?

Leto [7]

Answer:

Insert an image.

Step-by-step explanation:

If you may, add a picture so I can see what you mean.

7 0

2 years ago

Five times the sum of a number and 4 is -15.

Kamila [148]

number is 3.8

subtract 4 from -15 then divide by five

7 0

3 years ago

60 pts! 2x + 34 = 4(x + 5)solve the equation for x. ​

60 pts! 2x + 34 = 4(x + 5)solve the equation for x.