Answer:
Pants cost $20 and tee-shirts $10.
Step-by-step explanation:
For Sam 3t + 2p = 70
For Jessica 4t + p = 60
Take 2 times Jessica's equation and subtract Sam's
8t + 2p = 120
3t + 2p = 70
5t = 50
t = 10
3(10) + 2p = 70
30 + 2p = 70
2p = 40
p = 20
So first we need to know this:
Two negative signs make a positive
Two positives make a positive
One positive and one negative makes a negative.
So we can turn the equation to -4 -44 - - 1
2 minuses make plus
-4 -44 +1 = -48 +1 = -47
Answer:
it is 8/30
Step-by-step explanation:
first you have to add the red and blue marbles together to get the total of marbles which is 22 so then you create a fraction of 8/30 8 is the red marbles and 30 is the total number of marbles
The answer i got when i solved this question was 127.
Was this one of your answer choices.
<span>Divide the top of the fraction by the bottom,t<span>hen multiply your answer by 100</span></span>
