Ask question

Ask question

All categories

3 years ago

5

If 9 were subtracted from three times a number, the result would be the same as if 4 were added to twice the number. what is the

number?

1 answer:

amid [387]3 years ago

4 0

3x-9=2x+4
3x-9+9=2x+4+9
3x=2x+13
3x-2x=2x-2x+13
x=13
Check:
3(13)-9=2(13)+4
39-9=26+4
30=30

You might be interested in

THe question is down below in the epic image

drek231 [11]

Answer:

A.

Step-by-step explanation:

4 0

2 years ago

For Tran thank you appreciate it

Anestetic [448]

Step-by-step explanation:

Let alpha be the unknown angle. We can set up our sine law as follows:

$\frac{ \sin( \alpha ) }{5 \: m} = \frac{ \sin(42) }{3.6 \: m }$

or

$\sin( \alpha ) = \frac{5 \: m}{3.6 \: m} \times \sin(42) = 0.929$

Solving for alpha,

$\alpha = arcsin(0.929) = 68 \: degrees$

3 0

2 years ago

Find the unit rate of 135 miles in 5 hours

aliina [53]

To do this you have to divide 135 miles by 5 hours. You will get the answer of 27 miles per hour.

4 0

3 years ago

Read 2 more answers

Twice the sum of four and x is three less than x.

aliya0001 [1]

Answer:

-11

Step-by-step explanation

Condition:

2(4+x)=x-3

8+2x=x-3

Combining similar terms

8+3=x-2x

11=-x

OR

x=-11

7 0

2 years ago

An english reading list has 9 american novels and 7 english novels. A student must read 5 from the list and at least 3 must be e

Elenna [48]

$_7C_3\cdot {_{13}C_2}=\dfrac{7!}{3!4!}\cdot\dfrac{13!}{2!11!}=\dfrac{5\cdot6\cdot7}{2\cdot3}\cdot\dfrac{12\cdot13}{2}=2730$

7 0

2 years ago