How old was Lisa x years ago if she is now 13? Which expression represents this?
2 answers:
Answer:
a = 13 - x
Step-by-step explanation:
Age = a
(Any other letter of substitution for age would be fine)
For example if x was 5 :
a = 13 - 5
a = 8
For further study:
- Research algebra on either website. (eg: Maths Is Fun, Khan Academy...)
Answer:13-x= y
Step-by-step explanation:
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Answer:
Step-by-step explanation:
25=mean of (5th+6th value)
25=1/2*(2x-8+2x+10)
25=1/2*4x+2
4x+2=50
4x=48
x=12
PLZ MARK AS BRAINLIEST
Answer:
oop
Step-by-step explanation:
127247
sorry if wrong I kept getting notifications
The Second Choice I think
Answer:
.25 or 25%
Step-by-step explanation:
24/96=.25
