Answer:
I'm pretty sure it's 30 but I'm not 100% sure.
Answer :
6. x=28
7.x =6
8. x =9
9. x =9
Step-by-step explanation:
6.
(x+2)/10 = 3
Cross multiply
x+2 = 10 ×3
x+2 =30
Collect like terms and simplify
x =30-2
x = 28
7.
8x +9 -5x= 27
Collect like terms and simplify
8x-5x =27-9
3x =18
Divide both sides of the equation by 3
3x/3 = 18/3
x = 6
8.
10x+8=8x+26
Collect like terms
10x-8x=26-8
2x = 18
Divide both sides of the equation by 2
2x/2 = 18/2
x = 9
9.
2(x-5)+4x=x+35
Use 2 to open the bracket
2 × x =2x
2×(-5) =-10
2x-10+4x =x+35
Collect like terms and simplify
2x+4x-x = 35+10
5x = 45
Divide both sides of the equation by 5
5x/5 = 45/5
x =9
Answer:
1:4
Step-by-step explanation:
In the ratio:
Number of apples: 1
Number of oranges: 3
Total number of pieces of fruit: 3 + 1 = 4
apples : all fruit = 1:4
Answer: 1:4
Answer:
Your answer is 10%
Step-by-step explanation:
All the students added together equals 30
There are only 3 senior females
30/3 is 10, so 10%