Answer:
35
Step-by-step explanation:
Using proportions, you are correct:
70/x = 100/50
cross multiply
100x = 3500
divide both sides by 100 to get your answer.
Answer:
you have to use multiplication maybe division and addition
Step-by-step explanation:
Answer:
That's what they started out with.
Step-by-step explanation:
In this case, the sponsors each had different starting amounts of money.
If you would like to rewrite the equation 3*x + 5*y = 7 so that y is a function of x, you can do this using the next few steps:
3*x + 5*y = 7
5*y = 7 - 3*x /5
y = (7 - 3*x) / 5
y = 7/5 - 3/5*x
The result is y = 7/5 - 3/5*x.