Logan and Angis paint kitchens in the elderly community. Logan can paint an average kitchen in 5 hours. Angis can do the same in 7 hours. How long will it take if they were to work together? Work shown pls.

Step-by-step explanation:

Logan can complete 1/5 of the job each hour, and Angis can complete 1/7 of the job each hour.  Thus, together, they complete 12/35 of the job per hour: (1/5 + 1/7 = 7/35 + 5/35 = 12/35).

In one hour they complete 12/35 of the job, so:

1 hour * 35 = 12/35 jobs

35 hours = 12 jobs

35 hours / 12 = 1 job

2.916 hours = 1 job

.916 hours = 54.96 minutes

.96 minutes = 57.6 seconds ≈ 58 seconds

Hope it helps :) and let me know if you want me to elaborate.

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45 

The answer is in the image 

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Here,

tip=18%of $32

tip=(18/100)*32

=0.18*32

=$5.76

Total payment=32+5.76=$37.76

The answer is in the image 

30% of 420 are first year students

first year students = (30/100 )*420

=126 students

Student who are not in first year = 420-126

=294 students