$\dfrac{2m}{5}+3=7(4m-3)\ \ \ \ |use\ distributive\ property:a(b-c)=ab-ac\\\\\dfrac{2m}{5}+3=28m-21\ \ \ \ \ |multiply\ both\ sides\ by\ 5\\\\2m+15=140m-105\ \ \ \ |subtract\ 140m\ from\ both\ sides\\\\-138m+15=-105\ \ \ \ |subtract\ 15\ from\ both\ sides\\\\-138m=-120\ \ \ \ |divide\ both\ sides\ by\ (-138)\\\\m=\dfrac{120:6}{138:6}\\\\\boxed{m=\frac{20}{23}}$

7 0

3 years ago

The median of 50 50 54 56 60 62 63 64 79 72 72

miss Akunina [59]

Answer:

Step-by-step explanation:

50,50,54,56,60,62,63,64,79,72,72,

median ids the number at the center

50,50,54,56,60(62)63,64,79,72,72

3 0

2 years ago

Convert 6,250 pounds to tons

MariettaO [177]

Answer:

6250 pounds =3.125 us tons

8 0

3 years ago

Read 2 more answers

find the value of K so that the line passing thru the points (K,-1) and (-2,-8) is parrallel to the equation 3x+y= -7​

find the value of K so that the line passing thru the points (K,-1) and (-2,-8) is parrallel to the equation 3x+y= -7