3 years ago

Solve for x. 6x (2x + 12)

1 answer:

7 0

It’s a straight line, and a straight line equals 180° so it would be:
180=6x+2x+12
180=8x+12
subtract 12 from both sides
168=8x
divide both sides by 8
21=x
the answer is 21 which is the second choice

You might be interested in

-10+65=-5m What is the value of m

Alona [7]

-10 + 65 = -5m
55. = -5m
----- -----
-5 -5

-11. = m

6 0

4 years ago

Read 2 more answers

Can anybody help me on this?

Eduardwww [97]

Answer: second option.

Step-by-step explanation:

You need to descompose the radicand 8 and the radicand 50 into their prime factors:

$8=2*2*2=2^2*2\\50=2*5*5=2*5^2$

Then you can rewrite the expression:

$\sqrt{8}+\sqrt{50}$

$=\sqrt{2^2*2}+\sqrt{2*5^2}$

Since:

$\sqrt{a^2}=a$

You can simplify the expression:

$=2\sqrt{2}+5\sqrt{2}$

As the indices and the radicands are the same, you can make the addition:

$=7\sqrt{2}$

4 0

3 years ago

A student wants to graph his earnings for each week during the next calendar year. He wants to see how his earnings change

Artyom0805 [142]

Answer:

Step-by-step explanation:

Line graph

8 0

3 years ago

A food tray has a perimeter of 86 cm. The length of the tray is 5 cm less than triple the width. What is the length, in cm, of t

klasskru [66]

Answer:

253cm

Step-by-step explanation:

(86cm*3)-5cm

= 258cm - 5cm

= 253cm

4 0

3 years ago

PLEASE MAKE ANSWER CLEAR

kati45 [8]

You'll have to solve simultaneously

let nickel be x, dime be y

x + y = 35 ... ( 1 )

5x + 10 y = 250
5 ( x + 2y ) = 250
x + 2y = 50 ... ( 2 )

in ( 1 )
x = 35 - y ( 3 )

sub ( 3 ) into ( 2 )
( 35 - y ) + 2y = 50
y = 15

sub y into ( 1 )
x + y = 35
x + 15 = 35
x = 20

therefore, Sandy has 20 nickels and 15 dimes

3 0

3 years ago