Okay, 3x just means 3•x. so 3•x-y=15. you would have to have what x and y both mean to get the correct answer. but if they just need it simplified than your answer would be 3•x-y=15
Hey babe I’m going to be at home;)
Answer:
i think its 4 packages
Step-by-step explanation:each package is 25 so if you get 2 its 50 + another package would be 75 so you need one more.
hope this helps
Answer:
bus = 43
van 12
Step-by-step explanation:
This can be solved using simultaneous equations
Let v represent the number of students that a van carries
Let b represent the number of students that a bus carries
the following equations can be derived from the question
3v + 2b = 122 eqn 1
5v + 3b = 189 eqn 2
Multiply eqn 1 by 5 and eqn 2 by 3
15v + 10b = 610 eqn 3
15v + 9b = 567 eqn 4
Subtract equation 4 from 3
b = 43
Substitute for b in equation 1
3v + 2(43) = 122
solve for v
v = 12
Answer:
<em>8,748 </em>
Step-by-step explanation:
f(x) = 
<em>f(6)</em> = 
= 12 × 9³ = 12 × 729 = <em>8,748</em>
