Respuesta :
D: if you combine the “t” numbers, (7 & 8) you get 15t. When you add 5 to -1, your sum is 4 therefore the answer is D) 15t + 4
earnings on monday - 7t - 1
earnings on tuesday - 8t + 5
total earnings = earnings on both monday and tuesday
we need to add the earnings on monday and tuesday
total earnings = 7t - 1 + 8t + 5
we bring the like terms together
= 7t + 8t - 1 + 5
since 7t and 8t are like terms we can add them and get 15t
-1 and +5 have different signs so we have to find the difference of the 2 numbers which is 5 -1 = 4 and the put the sign of the larger number (+5) , positive sign
answer is = 15t + 4
answer is d. 15t + 4
