Answer:
$10 coins: 21
$20 coins: 24
Step-by-step explanation:
heyy me again
So we can create 2 equations where
x = number of $10 coins
y = number of $20 coins:
x + y = 45
10x + 20y = 690
we can move equation 1 around so that we can get a value of x
x = 45 - y
now we can substitute x into the second equation
10(45 - y) + 20y = 690
450 - 10y + 20y = 690
10y = 240
y = 24
Now plug in y back into the first equation
x = 45 - y
x = 45 - 24
x = 21
Answer:
6x + 12y = 816
Step-by-step explanation:
6 dollars per regular admission
12 dollars per both dance and volleyball
in total 816 dollars
Answer:
C. Reasons for changes in trends can be identified.
Step-by-step explanation:
The others would all be disadvantages.
The information we know:
1 week = 134 inches
x = 714
What I did was, I divided 714 by 134 to find the amount of weeks:
So, from the equation, basically, in 6 weeks (actually 5.3 weeks) the plant will grow 714 inches long
<em>thank you! ps can u give me brainly :3</em>
////// The answer is: 4x+2
