Answer:
5
Step-by-step explanation:
plug in x 20+5=25
plug in y =5
25/5=5
=>(x+5)/y
=>(20+5)/5
=>25/5
=>5
15r means that she burns 15 calories per min, for as many mins as she ran. EG: if she ran for 10 min, then she burned 150 cals. The other one I'm not so sure.
Answer: …………..
……………..
3x + 5y = 15
divide by 15;
3x/15 + 5y/15 = 15/15
x/5 + y/3 = 1
x-intercept= 5
y-intercept= 3
