(2x5+3)8=104
2x5=10
10+3=13
13x8=104
Hope that makes sense! :)
Answer:
Step-by-step explanation:
Given: Trey's test score average decreased by 14 points this semester.
To find: a signed number to represent this change in average.
Solution:
The decrease can be denoted by minus 
sign and increase can be denoted by plus 
sign.
So, a signed number to represent the change in test score average is
Answer:
3/4
Step-by-step explanation:
If you have a 1/4 chance of winning, the other team has a 3/4 chance of winning assuming the only options are to win or lose. If the other team wins, you lose, so you have a 3/4 chance of losing.
Answer:
26 or 62
Step-by-step explanation:
If one of the two digits of a two-digit number is three times the other digit, then the options for the two-digit number are:
If you interchange the digits of this two-digit number and add the resulting number to the original number, you get 88.
From inspection of the listed pairs of numbers, the only pair that sums to 88 is 26 and 62:
⇒ 26 + 62 = 88
Therefore, the original number is either 26 or 62.
