This is because -10 x 5 = -50 and if you have 20 points to start with, you just do 20-(-30)=20 and two minuses make a plus so it is 20 + 30 which is 50.

8 0

3 years ago

A local store buys used video games. For each game bought, they would pay $18 less than the original price paid for the game. Wh

Sonbull [250]

Answer:

total amount = n (d-18)

total amount = dn - 18n

Step-by-step explanation:

given data

pay = $18 less than the original price

originally cost = d dollars

sell = n games

solution

we take original price paid for the game = d

and they will pay $18 less than the original price

so that can we say

d -18

and

when sold n games than the cost of n used games will be here

cost = n (d-18)

so it can express as

total amount = n (d-18)

total amount = dn - 18n

7 0

2 years ago

Help with question 4 please

musickatia [10]

Answer:

dont know

Step-by-step explanation:

sorry

6 0

3 years ago