1.) 1:4
4.) 2:3
5.) 7:9
6.) 1:7
Answer:Score will change by 350 points after completion of level 3
Step-by-step explanation:
Number of points lost after loosing a spaceship
Number of spaceship lost
Total number of points lost
Number of points earned after completion of level 3
Scoreof Reggie changed by points
Score will change by 350 points after completion of level 3
Let x and y be the rate per hour for Mechanic 1 and 2 respectively.
Then,
x+y=205 ---------- (1)
Additionally,
10x+15y = 2500 ------ (2)
Solving equations 1 and 2;
Multiply (1) by 10 and subtract two from the result,
10x+10y = 2050
10x +15 y =2500
----------------------
-5 y = --450 => y = 450/5 = $90
Then,
x= 205-90 = $115
Therefore,
Mechanic 1 charged $115 per hour
Mechanic 2 charged $90 per hour
Step-by-step explanation:
a day =24hrs so 10 days=240hrs
20hrs/240hrs ×100%to get the percentage
20/240×100%=8 1/3
No! 8/10 is not equal to 25/30 10 times 3 equals 30 but 8 times 3 equals 24 not 25. Th actual reaction would be 24/30