All categories

2 years ago

Solve for n nn. 7 n − 4 = 31

Mathematics

2 answers:

never [62]2 years ago

8 0

${ \longmapsto{ \sf{7n - 4 = 31}}}$

${ \longmapsto{ \sf{7n = 31 + 4}}}$

${ \longmapsto{ \sf{7n = 35}}}$

${ \longmapsto{ \sf{n = \frac{35}{7} }}}$

${ \longmapsto{ \sf{n = \cancel\frac{35}{7} }}}$

${ \color{blue}{ \longmapsto{ \sf{n = 5 }}}}$

makkiz [27]2 years ago

5 0

Answer: 5

Step-by-step explanation:

5x7=35

35-4=31

You might be interested in

What is the measurement of BC to the nearest centimeter?

77julia77 [94]

Answer:

a 8

Step-by-step explanation:

You are given two sides and the included angle. Since you don't have any side and the opposite angle, you must use the law of cosines.

$a^2 = b^2 + c^2 - 2bc\cos A$

$a^2 = 5^2 + 11^2 - 2(5)(11)\cos 39^\circ$

$a^2 = 25 + 121 - 110\cos 39^\circ$

$a^2 = 60.51$

$a = 7.779$

Answer: a = 8 cm

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B13%5E%7B2%7D%20%7D%20-12%5E%7B2%7D" id="TexFormula1" title="\sqrt{13^{2} } -12^{2}"

ankoles [38]

Simplify the radical, then combine the numbers.
-131

4 0

2 years ago

Lines g, h, and l are parallel and m< 2 = 132°.

xxMikexx [17]

M < 2 and m < 6 are corresponding angles and are equal....so < 6 = 132.

< 6 and < 8 form a line and are equal to 180

< 6 + < 8 = 180
132 + < 8 = 180
< 8 = 180 - 132
< 8 = 48 <===

4 0

3 years ago

Read 2 more answers

How many lbs are in a metric ton

siniylev [52]

Answer:

2204.62

Step-by-step explanation:

4 0

3 years ago

Is 2/10 equivalent to 20/100

MissTica

Answer:

Yes it is

Step-by-step explanation:

You know it is equal because 2/10 is equal to .20 or .2

3 0

3 years ago

Read 2 more answers