Answer:
Mean temperature for the first 8 days was 
Step-by-step explanation:
Mean = 

Best Regards!
5x+130=8x+151
subtract 5x from each side
5x-5x+130=8x-5x+151
130 = 3x+151
subtract 151 from each side
130-151 =3x
-21 = 3x
divide by 3
-21/3 = 3x/3
-7 =x
Answer:
I think the answer is 11.7 units rounded to nearest tenth
Step-by-step explanation:
d=(2−(−4))2+(−7−3)2−−−−−−−−−−−−−−−−−−−√
d=(6)2+(−10)2−−−−−−−−−−−√
d=36+100−−−−−−−√
d=1–√36
d=11.661904
The answer is 23 because if you subtract 100-50 you get it
Answer:
40 years old
Step-by-step explanation:
Let's imagine a+b=63
63-12=51 (since they were both 6 years younger)
A is double B
34+17=51
34/2=17
You need to add the 6 years back onto the mothers age - 34+6=40
40 years old