1 foot is 12 inches

Convert everything to inches:
28 x 12 = 336 in.
39 x 12 = 468 in.

Add all the inches together:
336 + 468 + 7 + 8 = 819 in.

The answer is 819 inches.

3 0

3 years ago

Solve the following:<br> a) 4x-1 / 2= x+7<br> b)<br> 3x + 2 = 2x + 13 /3

11Alexandr11 [23.1K]

Answer:

a) 2.5

b)2.33

Step-by-step explanation:

$4x-\frac{1}{2}= x+7$

Bring the numerals to the right hand side and the x terms to the left hand side

$4x-x=7+\frac{1}{2}$

Simplify

$3x=\frac{15}{2}$

Divide 3 on both sides, to get x

$x=\frac{5}{2} =2.5$

$3x+2=2x+\frac{13}{3}$

Bring the numerals to the right hand side and the x terms to the left hand side

$3x-2x=\frac{13}{3}-2$

Simplify

$x=\frac{7}{3} =2.33$

5 0

3 years ago

Pythagorean Theorema a=24 b=26 c=?

fredd [130]

Answer: 2√313

Step-by-step explanation:

Pythagorean theorem: a²+b²=c²

c²=a²+b²

c²=24²+26²

c²=576+676

c²=1252

c=√1252

c=2√313

Hope this helps!! :)

Please let me know if you have any question or need any further explanation

7 0

3 years ago