Find the value of z when the sum of 10z,(15z+20),(20z-4)and (30z+10) is 401?
Answers.
A) 10  B) 15  C) 7  D) 5  E) 12
sum = 10z+(15z+20)+(20z-4)+ (30z+10) = 75z+26   75z+26 = 401   x = 375/75= 
<gadget id="calculator">375/75</gadget>
<output>5</output>
5   Answer is 5
<result>D</result>
Find the value of z when the sum of 10z,(15z+20),(20z-4)and (30z+10) is 401?