Answer:
a. 125 – 7d
Step-by-step explanation:
Let d be the number of days.
<u>Given the following data;</u>
Total distance (month) = 125 miles
Distance covered per day = 7 miles
To determine how many miles he has left to run after running for "d" days, this mathematical expression can be used;
Total distance - distance covered per day = number of miles remaining
Answer:
Step-by-step explanation:
hmmmmm
Think of a number line
You have -6 and -9
Jump 9 up the number line
Your answer is 3
5x+2(-2x+3)=5
5x-4x+6=5
x=-1
Then plug back into either to solve for y.
y=-2(-1)+3
y=2+3
y=5
Substitution means you just replace one variable with the other equation so only one variable is showing. That’s how you solve for the first variable.
The less than or equal to sign then 5
