Sub 4 for every y
8x-2(4)=48
8x-8=48
ad 8 to both sides
8x=56
divide both sides by 8
x=7
Answer:
1. Allans brother is 19
2. $18.75
Step-by-step explanation:
1. 11 x 2= 22 - 3= 19
2. $1.05 x 15= $15.75
$15.75 + $3 = $18.75
Answer:
Step-by-step explanation:
Annual Income of Sam = $37,368
To find the monthly income (given that he earns an equal amount of money every month), we can divide the annual income by 12. (Each year has 12 months)
<u>Monthly Income:</u>
= $37,368 / 12
= $3,114
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Answer:
486
Step-by-step explanation:
just multiply and divide
8 x 27 / 4 x 9
Answer:
Pat t2 = 40 hrs
Step-by-step explanation:
Given:-
- Fred can paint a house in t1 = 10 hours.
- Pat can paint a house in t2 hours.
- pat and Fred can paint a house in T = 8 hours.
Find:-
Which equation, when solved will produce the number of hours need for pat to paint the house alone
Solution:-
- The number of people working on a particular activity " painting a house " is inversely proportional to time taken to complete the activity. tn = T. The relation for individual time taken ti to complete an activity.
Sum ( 1 / ti ) = 1 / T
Where, ti = The individual time for (ith) person
T = The total time taken to complete the time by i = n number of people.
- For n = 2,
1/t1 + 1/t2 = 1/T
1/10 + 1/t2 = 1/8
1 / t2 = 0.025
t2 = 40 hrs
- It takes Pat t2 = 40 hrs to complete painting the house.
