the average of 5 numbers is 7. when one more number is added the average becomes 10. what number was added?

13

Step-by-step explanation:

for example, Sum of 5 no. = 7×5=35

Sum of 8 no. = 8.5×8=68

Sum of added all three no. = 68 - 35 = 33

average of three new numbers = 33/3=11

i'm going to search it

step-by-step explanation:

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction