S/g=7/5, s=7g/5
s=g if s-30=g+30 using s found above...
7g/5 -30=g+30
(7g-150)/5=g+30
7g-150=5g+150
2g=300
g=150, and since s=7g/5, s=210
So Simon started with 210 pencils and Greg started with 150 pencils.
Awnser 26 add them all together
Answer: 19/25
Step-by-step explanation:
There are 25 markers in total and 6 of them are green. The odds of a student not getting a green marker would be the number of markers that aren’t green out of 25
25 - 6 = 19
19/25
Answer:
Train A = 214
Train B = 86
Step-by-step explanation:
a + b = 300
a - b = 128
a + b = 300
a = 128 + b
(128 + b) + b = 300
128 + b + b = 300
128 + 2b = 300
2b = 300 - 128
2b = 172
b = 172 ÷ 2
b = 86
a = 128 + b
a = 128 + (86)
a = 214