Answer:
Tommy's band won 5 awards, Ali's band won 8 awards and Jack's band won 10 awards.
Step-by-step explanation:
Let the number of awards Tommy won be x.
Number of awards Ali won -> x+3
Number of awards Jack won -> 2x
![x+x+3+2x=23](https://tex.z-dn.net/?f=x%2Bx%2B3%2B2x%3D23)
![4x+3=23](https://tex.z-dn.net/?f=4x%2B3%3D23)
Subtract 3 from both sides:
![4x+3-3=23-3](https://tex.z-dn.net/?f=4x%2B3-3%3D23-3)
![4x=20](https://tex.z-dn.net/?f=4x%3D20)
Divide both sides by 4:
![\frac{4x}{4}=\frac{20}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B4x%7D%7B4%7D%3D%5Cfrac%7B20%7D%7B4%7D)
(Tommy)
(Ali)
(Jack)
Use the formula slope= y-y/x-x
-10-r/-2-8= 1/10
-10-r/-10= 1/10
Multiply the denominator (-10) on both sides
-10-r= -1
Add -10 to both sides
-r= 9
r= -9
Hope this helps!
Pete's equation is 50+75h (this means 50+7 times 3 because h represents hours and it tells us that there are 3 hours so h is 3)
paul's equation is 75+50h(this means 75+50 times 3 because h represents hours and it tells us that there are 3 hours so h is 3)
paul charges less because 75+50h equals to 225 and 20+75h equals to 275 and 275 is more than 225 so paul charges less(paul is cheaper)
Answer:
Gabby= 172.5 Jase= 137.5
Step-by-step explanation:
310-35= 275
275/2= 137.5 = Jase add 35 for Gabby
137.5+35=172.5