Answer:
Mark has 23 marbles, Don has 74 marbles
Step-by-step explanation:
Mark has x marbles, Don has y marbles
y = 5 + 3x
x + y = 97
so
x + (5 + 3x) = 97
4x = 97 - 5 = 92
x = 92/4 = 23
y = 97 - 23 = 74
Answer:
a) 10^2 = 100
b)10^4= 10,000
Step-by-step explanation:
75,000/750= 100 = 10^2
60,500/6.05= 10,000= 10^4
Answer:
NOTE: Standard form is Ax+By=C
Distribute -1
5a -a +3b
Rewrite
5a +3b = -a
Multiply every term by -1 so -a will be positive
-5a -3b = a