Answer:
p = -3
Step-by-step explanation:
can i have a brainlest
Answer: a very straight forward b 2 4 and 6 c 9
Step-by-step explanation:
2/3 because you flip 3 coins and you want to get al least 2 heads!
Answer:
Yes u can just click the thing that looks like a paper clip.
Step-by-step explanation:
Answer:
<h2>22 hours and 10 hours </h2>
Step-by-step explanation:
let the jobs be x and y, so that
x+y=32--------1
9x+7y=248----2
x=32-y
substitute x=32-y for x in equation 2 we have
9(32-y)+7y=248
open bracket we have
288-9y+7y=248
-2y=248-288
-2y=-40
2y=40
divide both sides by 2 we have
y=40/2
y= 10 hours
subtitute y=10 for y in equation 1 to find x
x+10=32--------1
x=32-10
x=22
x=22 hours