First you have to canceled out the fours from both side 4x/4-12/4 so x=3 then you do the same thing to the 7x-18
4x-12.
4x/4-12/4. So x=3
The fours cancelled out
7x-18
7x/7-18/7. So x= 2 4/7
The sevens cancelled out
Your going to divide them then take the same score and double it then subtract the total and the doubles number
Hi there!
Amit's estimate would be a close estimate!
If you add the fractions together and put it in decimal form you get 4.96 which is very close to Amit's estimate of 5.
Answer:
S = 62.5%
Step-by-step explanation:
- Let the junior members be J.
- Let the senior members be S.
<u>Given the following data;</u>
Ratio of J:S = 3:5 = 3 + 5 = 8
To find what percent of team members are seniors;
<em>S = 62.5%</em>
Additionally, to find what percent of team members are juniors;
J = 100 - S
J = 100 - 62.5
J = 37.5%
X=number of bottles sold by Sammy.
y=number of bottles sold by David.
We can suggest the following system of equations:
x/y=5/3
x+y=160
We solve the system of equations by substitution method.
x+y=160 ⇒y=160-x
x/(160-x)=5/3
3x=5(160-x)
3x=800-5x
3x+5x=800
8x=800
x=800/8
x=100
y=160-x
y=160-100
y=60
answer: Sammy sold 100 bottles and David sold 60 bottles.
other method.
5x=bottles sold by Sammy
3x=bottles sold by David.
We can suggest the following equation:
5x+3x=160
8x=160
x=160/8
x=20
bottles sold by Sammy: 5x=5(20)=100
bottles sold by David: 3x=3(20)=60
Answer:Sammy sold 100 bottles and David sold 60 bottles.
